PLC_User_Manual

PLC programming manual 6. System-specific list When switch power OFF -> ON First switch STOP-> RUN after powering ON  Abnormal content and reasons Display the starting address of unconnected I/O For example: Suppose X20 is unconnected 1: input Device address 10~337 0: output 1st ~ 3rd codes mean device address; 4th code means I/O type (1=input, 0=output)  Solution: Change the device address; Sometime PLC can run with error device address, but it is better to change it 7.3 Hardware Error (6101~6115) 7.3.1 Error code 6101  Applicable Model: LX series CPU  Error code (D8061):6101  Error message: PLC hardware error  LED state (RUN): OFF  LED state (PROG.E): ON  PLC acting state: Stop  Diagnosis timing: PLC power is turned ON  Abnormal content and reasons RAM error 7.3.2 Error code 6102  Applicable Model: LX series CPU  Error code (D8061):6102  Error message: PLC hardware error  LED state (RUN): OFF  LED state (PROG.E): ON  PLC acting state: Stop 288

PLC programming manual 6. System-specific list  Diagnosis timing: PLC power is turned ON  Abnormal content and reasons Operation ladder error 7.3.3 Error code 6103  Applicable Model: LX series CPU  Error code (D8061):6103  Error message: PLC hardware error  LED state (RUN): OFF  LED state (PROG.E): ON  PLC acting state: Stop  Diagnosis timing: PLC power is turned ON  Abnormal content and reasons I/O bus error (M8069 is ON)  Solution Check extension module cables. 7.3.4 Error code 6104  Applicable Model: LX series CPU  Error code (D8061):6104  Error message: PLC hardware error  LED state (RUN): OFF  LED state (PROG.E): ON  PLC acting state: Stop  Diagnosis timing: PLC power is turned ON  Abnormal content and reasons Extension module 24V failure (M8069=ON)  Solution Check extension cables. 7.3.5 Error code 6105  Applicable Model: LX series CPU  Error code (D8061):6105  Error message: PLC hardware error  LED state (RUN): OFF  LED state (PROG.E): ON  PLC acting state: Stop  Diagnosis timing: PLC power is turned ON  Abnormal content and reasons 289

PLC programming manual 6. System-specific list Watch Dog Timer error.  Solution Confirm user program. The scan time exceeds the value stored in D8000 7.3.6 Error code 6106  Applicable Model: LX series CPU  Error code (D8061):6106  Error message: PLC hardware error  LED state (RUN): OFF  LED state (PROG.E): ON  PLC acting state: Stop  Diagnosis timing: PLC power is turned ON  Abnormal content and reasons Create I/O table error (CPU error)  Solution The error occurs if the 24V power is not supplied for 10 seconds or more after main power turns ON. 7.3.7 Error code 6107  Applicable Model: LX series CPU  Error code (D8061):6107  Error message: PLC hardware error  LED state (RUN): OFF  LED state (PROG.E): ON  PLC acting state: Stop  Diagnosis timing: PLC power is turned ON  Abnormal content and reasons System configure error,  Solution The numbers of connected expansion module exceed the allowed range. 7.3.8 Error code 6113  Applicable Model: LX series CPU  Error code (D8061):6113  Error message: PLC hardware error  LED state (RUN): OFF  LED state (PROG.E): ON  PLC acting state: Stop  Diagnosis timing PLC power is turned ON. 290

PLC programming manual 6. System-specific list Change the setting for CC-Link/LT  Abnormal content and reasons The setting for CC-Link/LT can’t be saved, when protect switch at ON state and install the storage tape  Solution Protect switch turns OFF, and set again. 7.3.9 Error code 6114  Applicable Model: LX series CPU  Error code (D8061):6114  Error message: PLC hardware error  LED state (RUN): OFF  LED state (PROG.E): ON  PLC acting state: Stop  Diagnosis timing PLC power is turned ON. Change the setting for CC-Link/LT  Abnormal content and reasons The setting for CC-Link/LT can’t be saved on master. 7.3.10 Error code 6115  Applicable Model: LX series CPU  Error code (D8061):6115  Error message: PLC hardware error  LED state (RUN): OFF  LED state (PROG.E): ON  PLC acting state: Stop  Diagnosis timing 1) PLC power is turned ON. 2) Change the setting for CC-Link/LT  Abnormal content and reasons 1) Write error in CC-Link/LT master EEPROM 2) Unable to complete the configuration in the automatic mode 7.4 PP communication error (6201~6205) 7.4.1 Error code 6201  Applicable Model: LX series CPU  Error code (D8062):6201  Error message: PLC/PP communication error 291

PLC programming manual 6. System-specific list  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving PP signal  Abnormal content and reasons Parity/ overrun/ framing error  Solution 1) Check the cable connection between the programming panel (PP) and the PLC. 2) Plug communication cable when monitoring will lead error. 3) In LX2N/3V Series, the basic module power transmission speed is 9.6 Kbps, but the transmission speed for peripherals is 19.2Kbps, so when error occurs when executing the programming communication. So please clear the error flag in every channel, and set the transmission speed for peripherals to be 9.6 Kbps, when a communication error occurs at the start of the communication 7.4.2 Error code 6202  Applicable Model: LX series CPU  Error code (D8062):6202  Error message: PLC hardware error  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving PP signal  Abnormal content and reasons Communications character error  Solution 1) Check the cable connection between the programming panel (PP) and the PLC. 2) Plug communication cable when monitoring will lead error. 7.4.3 Error code 6203  Applicable Model: LX series CPU  Error code (D8062):6203  Error message: PLC hardware error  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving PP signal 292

PLC programming manual 6. System-specific list  Abnormal content and reasons Communication data sum check error  Solution 1) Check the cable connection between the programming panel (PP) and the PLC. 2) Plug communication cable when monitoring will lead error. 7.4.4 Error code 6204  Applicable Model: LX series CPU  Error code (D8062):6204  Error message: PLC hardware error  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving PP signal  Abnormal content and reasons Data format error  Solution 1) Check the cable connection between the programming panel (PP) and the PLC. 2) Plug communication cable when monitoring will lead error. 7.4.5 Error code 6205  Applicable Model: LX series CPU  Error code (D8062):6205  Error message: PLC hardware error  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving PP signal  Abnormal content and reasons Instruction error  Solution 1) Check the cable connection between the programming panel (PP) and the PLC. 2) Plug communication cable when monitoring will lead error. 293

PLC programming manual 6. System-specific list 7.5 Serial communication error (6301~6340) 7.5.1 Error code 6301  Applicable Model: LX series CPU  Error code (D8063):6301  Error message: Serial communication error 1  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving signal for target station  Abnormal content and reasons Parity/ overrun/ framing error  Solution 1) Communicate with the inverter/PC, programming: check the communication parameter setting. 2) Simple PLC connections, parallel connection: check the programming setting. 3) Remote maintenance: ensure the modem's power is turned on, and AT instruction content is right. 4) Check the communication cable. 5) In LX2N/3V Series, the basic module power transmission speed is 9.6 Kbps, but the transmission speed for peripherals is 19.2Kbps, so when error occurs when executing the programming communication. So please clear the error flag in every channel, and set the transmission speed for peripherals to be 9.6 Kbps, when a communication error occurs at the start of the communication 7.5.2 Error code 6302  Applicable Model: LX series CPU  Error code (D8063):6302  Error message: Serial communication error 1  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving signal for target station  Abnormal content and reasons Communication character error  Solution 1) Communicate with the inverter/PC, programming: check the communication parameter setting. 2) Simple PLC connections, parallel connection: check the programming setting. 3) Remote maintenance: ensure the modem's power is turned on, and AT instruction content is right. 4) Check the communication cable. 294

PLC programming manual 6. System-specific list 7.5.3 Error code 6303  Applicable Model: LX series CPU  Error code (D8063):6303  Error message: Serial communication error 1  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving signal for target station  Abnormal content and reasons Communication data sum check error  Solution 1) Communicate with the inverter/PC, programming: check the communication parameter setting. 2) Simple PLC connections, parallel connection: check the programming setting. 3) Remote maintenance: ensure the modem's power is turned on, and AT instruction content is right. 4) Check the communication cable. 7.5.4 Error code 6304  Applicable Model: LX series CPU  Error code (D8063):6304  Error message: Serial communication error 1  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving signal for target station  Abnormal content and reasons Communication data format error  Solution 1) Communicate with the inverter/PC, programming: check the communication parameter setting. 2) Simple PLC connections, parallel connection: check the programming setting. 3) Remote maintenance: ensure the modem's power is turned on, and AT instruction content is right. 4) Check the communication cable. 7.5.5 Error code 6305  Applicable Model: LX series CPU  Error code (D8063):6305  Error message: Serial communication error 1 295

PLC programming manual 6. System-specific list  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving signal for target station  Abnormal content and reasons Instructions error  Solution 1) Communicate with the inverter/PC, programming: check the communication parameter setting. 2) Simple PLC connections, parallel connection: check the programming setting. 3) Remote maintenance: ensure the modem's power is turned on, and AT instruction content is right. 4) Check the communication cable. 7.5.6 Error code 6306  Applicable Model: LX series CPU  Error code (D8063):6306  Error message: Serial communication error 1  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving signal for target station  Abnormal content and reasons Watchdog timer error  Solution 1) Communicate with the inverter/PC, programming: check the communication parameter setting. 2) Simple PLC connections, parallel connection: check the programming setting. 3) Remote maintenance: ensure the modem's power is turned on, and AT instruction content is right. 4) Check the communication cable. 7.5.7 Error code 6307  Applicable Model: LX series CPU  Error code (D8063):6307  Error message: Serial communication error 1  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving signal for target station 296

PLC programming manual 6. System-specific list  Abnormal content and reasons Modem initialization error  Solution 1) Communicate with the inverter/PC, programming: check the communication parameter setting. 2) Simple PLC connections, parallel connection: check the programming setting. 3) Remote maintenance: ensure the modem's power is turned on, and AT instruction content is right. 4) Check the communication cable. 7.5.8 Error code 6308  Applicable Model: LX series CPU  Error code (D8063):6308  Error message: Serial communication error 1  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving signal for target station  Abnormal content and reasons Parameter between simple PLC connections error  Solution 1) Communicate with the inverter/PC, programming: check the communication parameter setting. 2) Simple PLC connections, parallel connection: check the programming setting. 3) Remote maintenance: ensure the modem's power is turned on, and AT instruction content is right. 4) Check the communication cable. 7.5.9 Error code 6309  Applicable Model: LX series CPU  Error code (D8063):6309  Error message: Serial communication error 1  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving signal for target station  Abnormal content and reasons Program setting between simple PLC connections error  Solution 1) Communicate with the inverter/PC, programming: check the communication parameter setting. 2) Simple PLC connections, parallel connection: check the programming setting. 297

PLC programming manual 6. System-specific list 3) Remote maintenance: ensure the modem's power is turned on, and AT instruction content is right. 4) Check the communication cable. 7.5.10 Error code 6312  Applicable Model: LX series CPU  Error code (D8063):6312  Error message: Serial communication error 1  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving signal for target station  Abnormal content and reasons Parallel link character error  Solution 1) Communicate with the inverter/PC, programming: check the communication parameter setting. 2) Simple PLC connections, parallel connection: check the programming setting. 3) Remote maintenance: ensure the modem's power is turned on, and AT instruction content is right. 4) Check the communication cable. 7.5.11 Error code 6313  Applicable Model: LX series CPU  Error code (D8063):6313  Error message: Serial communication error 1  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving signal for target station  Abnormal content and reasons Parallel link data sum check error  Solution 1) Communicate with the inverter/PC, programming: check the communication parameter setting. 2) Simple PLC connections, parallel connection: check the programming setting. 3) Remote maintenance: ensure the modem's power is turned on, and AT instruction content is right. 4) Check the communication cable. 7.5.12 Error code 6314  Applicable Model: LX series CPU 298

PLC programming manual 6. System-specific list  Error code (D8063):6314  Error message: Serial communication error 1  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving signal for target station  Abnormal content and reasons Parallel link data format error  Solution 1) Communicate with the inverter/PC, programming: check the communication parameter setting. 2) Simple PLC connections, parallel connection: check the programming setting. 3) Remote maintenance: ensure the modem's power is turned on, and AT instruction content is right. 4) Check the communication cable. 7.5.13 Error code 6320  Applicable Model: LX series CPU  Error code (D8063):6320  Error message: Serial communication error 1  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When receiving signal for target station  Abnormal content and reasons Communication with inverter error  Solution 1) Communicate with the inverter/PC, programming: check the communication parameter setting. 2) Simple PLC connections, parallel connection: check the programming setting. 3) Remote maintenance: ensure the modem's power is turned on, and AT instruction content is right. 4) Check the communication cable. 7.5.14 Error code 6340  Applicable Model: LX series CPU  Error code (D8063):6340  Error message: Serial communication error 1  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run 299

PLC programming manual 6. System-specific list  Diagnosis timing When receiving signal for target station  Abnormal content and reasons Connection is abnormal in special adapter.  Solution Check the connection state of the special adapter. 300

PLC programming manual 6. System-specific list 7.6 Parameter error (6401~6421) 7.6.1 Error code 6401  Applicable Model: LX series CPU  Error code (D8064):6401  Error message: Parameter error  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Program sum check error  Solution Turn off PLC, and set the parameters correctly. 7.6.2 Error code 6402  Applicable Model: LX series CPU  Error code (D8064):6402  Error message: Parameter error  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Memory capacity setting error  Solution Turn off PLC, and set the parameters correctly. 7.6.3 Error code 6403  Applicable Model: LX series CPU 301

PLC programming manual 6. System-specific list  Error code (D8064):6403  Error message: Parameter error  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Latched device area setting error  Solution Turn off PLC, and set the parameters correctly. 7.6.4 Error code 6404  Applicable Model: LX series CPU  Error code (D8064):6404  Error message: Parameter error  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Comment area setting error  Solution Turn off PLC, and set the parameters correctly. 7.6.5 Error code 6405  Applicable Model: LX series CPU  Error code (D8064):6405  Error message: Parameter error  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop 302

PLC programming manual 6. System-specific list  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons File register area setting error  Solution Turn off PLC, and set the parameters correctly. 7.6.6 Error code 6406  Applicable Model: LX series CPU  Error code (D8064):6406  Error message: Parameter error  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons BFM initial value data sum check error  Solution Turn off PLC, and set the parameters correctly. 7.6.7 Error code 6407  Applicable Model: LX series CPU  Error code (D8064):6407  Error message: Parameter error  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON 303

PLC programming manual 6. System-specific list  Abnormal content and reasons BFM initial value data error  Solution Turn off PLC, and set the parameters correctly. 7.6.8 Error code 6407  Applicable Model: LX series CPU  Error code (D8064):6407  Error message: Parameter error  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons BFM initial value data error  Solution Turn off PLC, and set the parameters correctly. 7.6.9 Error code 6411  Applicable Model: LX series CPU  Error code (D8064):6411  Error message: Parameter error  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Built-in CC-Link / LT (specific area) parameter error  Solution Turn off PLC, and set the parameters correctly. 304

PLC programming manual 6. System-specific list 7.6.10 Error code 6412  Applicable Model: LX series CPU  Error code (D8064):6412  Error message: Parameter error  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Built-in CC-Link / LT (special settings area) parameter sum check error  Solution Turn off PLC, and set the parameters correctly. 7.6.11 Error code 6413  Applicable Model: LX series CPU  Error code (D8064):6413  Error message: Parameter error  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Built-in CC-Link / LT (specific area) parameter sum check error  Solution Turn off PLC, and set the parameters correctly. 7.6.12 Error code 6420  Applicable Model: LX series CPU  Error code (D8064):6420  Error message: Parameter error  LED state (RUN): OFF 305

PLC programming manual 6. System-specific list  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Special parameter sum check error  Solution Turn off PLC, and set the parameters correctly. 7.6.13 Error code 6421  Applicable Model: LX series CPU  Error code (D8064):6421  Error message: Parameter error  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Special parameter setting error  Solution 1) Check the special parameter error, and the content of D8489 2) Troubleshooting in special adapter 3) Set the special parameters correctly 7.7 Syntax error (6501~6512) 7.7.1 Error code 6501  Applicable Model: LX series CPU  Error code (D8065):6501  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF 306

PLC programming manual 6. System-specific list  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Instruction/ device symbol/device number error  Solution During programming, each instruction is checked as it is entered. If a syntax error is detected, re-enter the instruction correctly. 7.7.2 Error code 6502  Applicable Model: LX series CPU  Error code (D8065):6502  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons No timer or counter coil before setting value  Solution During programming, each instruction is checked as it is entered. If a syntax error is detected, re-enter the instruction correctly. 7.7.3 Error code 6503  Applicable Model: LX series CPU  Error code (D8065):6503  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker 307

PLC programming manual 6. System-specific list  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons 1) No setting value following either a timer or a counter coil 2) Insufficient number of operands for an applied instruction  Solution During programming, each instruction is checked as it is entered. If a syntax error is detected, re-enter the instruction correctly. 7.7.4 Error code 6504  Applicable Model: LX series CPU  Error code (D8065):6504  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons 1) The same label number is used more than once 2) The same interrupt input or high speed counter input is used more than once  Solution During programming, each instruction is checked as it is entered. If a syntax error is detected, re-enter the instruction correctly. 7.7.5 Error code 6505  Applicable Model: LX series CPU  Error code (D8065):6505  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF 308

PLC programming manual 6. System-specific list  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Device number is outside the allowable range  Solution During programming, each instruction is checked as it is entered. If a syntax error is detected, re-enter the instruction correctly. 7.7.6 Error code 6506  Applicable Model: LX series CPU  Error code (D8065):6506  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Invalid applied instruction  Solution During programming, each instruction is checked as it is entered. If a syntax error is detected, re-enter the instruction correctly. 7.7.7 Error code 6507  Applicable Model: LX series CPU  Error code (D8065):6507  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker 309

PLC programming manual 6. System-specific list  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Invalid P assignment  Solution During programming, each instruction is checked as it is entered. If a syntax error is detected, re-enter the instruction correctly. 7.7.8 Error code 6508  Applicable Model: LX series CPU  Error code (D8065):6508  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Invalid I assignment  Solution During programming, each instruction is checked as it is entered. If a syntax error is detected, re-enter the instruction correctly. 7.7.9 Error code 6509  Applicable Model: LX series CPU  Error code (D8065):6509  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop 310

PLC programming manual 6. System-specific list  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Other error  Solution During programming, each instruction is checked as it is entered. If a syntax error is detected, re-enter the instruction correctly. 7.7.10 Error code 6510  Applicable Model: LX series CPU  Error code (D8065):6510  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons MC nesting (N) number error  Solution During programming, each instruction is checked as it is entered. If a syntax error is detected, re-enter the instruction correctly. 7.7.11 Error code 6511  Applicable Model: LX series CPU  Error code (D8065):6511  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 311

PLC programming manual 6. System-specific list 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Interrupt and high speed counter assigned inputs overlap  Solution During programming, each instruction is checked as it is entered. If a syntax error is detected, re-enter the instruction correctly. 7.7.12 Error code 6512  Applicable Model: LX series CPU  Error code (D8065):6512  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons EXTR instruction is used without extend storage  Solution Please use LX2N/LX3V series PLC 7.8 Ladder error (6601~6632) 7.8.1 Error code 6601  Applicable Model: LX series CPU  Error code (D8066):6601  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 312

PLC programming manual 6. System-specific list 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons LD and LDI is used continuously 9 or more times in succession  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.2 Error code 6602  Applicable Model: LX series CPU  Error code (D8066):6602  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons 1) No LD/ LDI instruction. Unauthorized use of the LD / LDI, AND / ANI instructions 2) The following instructions are not connected to the active bus line: STL, RET, MCR, (P)pointer, (I)interrupt, EI, DI, SRET, IRET, FOR, NEXT, FEND and END 3) When MPP is missing  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.3 Error code 6603  Applicable Model: LX series CPU  Error code (D8066):6603  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker 313

PLC programming manual 6. System-specific list  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons MPS is used continuously more than 12 times  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.4 Error code 6604  Applicable Model: LX series CPU  Error code (D8066):6604  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Unauthorized use of the MPS/ MRD/MPP instructions  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.5 Error code 6605  Applicable Model: LX series CPU  Error code (D8066):6605  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop 314

PLC programming manual 6. System-specific list  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons 1) A single STL branch drives 9 or more parallel circuits 2) MC/ MCR or (I) interrupts are designated within an STL state 3) RET has not been designated or is designated out of an STL state  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.6 Error code 6606  Applicable Model: LX series CPU  Error code (D8066):6606  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons 1) No (P) pointer/ (I) interrupt 2) No SRET/ IRET 3) An (I) interrupt/ SRET or IRET has been designated within the main body of the program 4) STL/ RET/ MC or MCR have been designated within either a subroutine or an interrupt routine  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.7 Error code 6607  Applicable Model: LX series CPU  Error code (D8066):6607  Error message: Syntax error 315

PLC programming manual 6. System-specific list  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons 1) Unauthorized use of FOR - NEXT. 6 or more levels have been designated 2) The following instructions have been designated within a FOR -NEXT loop: STL/ RET/ MC/ MCR/ IRET/ SRET/ FEND or END  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.8 Error code 6608  Applicable Model: LX series CPU  Error code (D8066):6608  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons 1) Unauthorized MC/ MCR relationship 2) Missing MCR N0 3) SRET/ IRET or an (I) interrupt has been designated within an MC/ MCR block  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 316

PLC programming manual 6. System-specific list 7.8.9 Error code 6609  Applicable Model: LX series CPU  Error code (D8066):6609  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Other error  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.10 Error code 6610  Applicable Model: LX series CPU  Error code (D8066):6610  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons LD and LDI is used continuously 9 or more times in succession  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 317

PLC programming manual 6. System-specific list 7.8.11 Error code 6611  Applicable Model: LX series CPU  Error code (D8066):6611  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Number of LD/LDI instructions is fewer than ANB/ORB instructions  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.12 Error code 6612  Applicable Model: LX series CPU  Error code (D8066):6612  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Number of LD/LDI instructions is more than ANB/ORB instructions  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 318

PLC programming manual 6. System-specific list 7.8.13 Error code 6613  Applicable Model: LX series CPU  Error code (D8066):6613  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons MPS is used continuously more than 12 times  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.14 Error code 6614  Applicable Model: LX series CPU  Error code (D8066):6614  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons MPS instruction missing  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 319

PLC programming manual 6. System-specific list 7.8.15 Error code 6615  Applicable Model: LX series CPU  Error code (D8066):6615  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons MPP instruction missing  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.16 Error code 6616  Applicable Model: LX series CPU  Error code (D8066):6616  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Unauthorized use of the MPS/ MRD/MPP instructions; possible coil missing  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 320

PLC programming manual 6. System-specific list 7.8.17 Error code 6617  Applicable Model: LX series CPU  Error code (D8066):6617  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons One of the following instructions is not connected to the active bus line: STL, RET, MCR, (P)pointer, (I)interrupt, EI, DI, SRET, IRET, FOR, NEXT, FEND and END  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.18 Error code 6618  Applicable Model: LX series CPU  Error code (D8066):6618  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons STL/ RET/ MC or MCR programmed within either a subroutine or an interrupt routine  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 321

PLC programming manual 6. System-specific list 7.8.19 Error code 6619  Applicable Model: LX series CPU  Error code (D8066):6619  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Invalid instruction programmed within a FOR - NEXT loop: STL/ RET/ MC/ MCR/ I/ IRET/ SRET  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.20 Error code 6620  Applicable Model: LX series CPU  Error code (D8066):6620  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons FOR - NEXT nesting exceeded  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 322

PLC programming manual 6. System-specific list 7.8.21 Error code 6621  Applicable Model: LX series CPU  Error code (D8066):6621  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Unmatched number of FOR and NEXT instructions  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.22 Error code 6622  Applicable Model: LX series CPU  Error code (D8066):6622  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons NEXT instruction not found  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 323

PLC programming manual 6. System-specific list 7.8.23 Error code 6623  Applicable Model: LX series CPU  Error code (D8066):6623  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons MC instruction not found  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.24 Error code 6624  Applicable Model: LX series CPU  Error code (D8066):6624  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons MCR instruction not found  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 324

PLC programming manual 6. System-specific list 7.8.25 Error code 6625  Applicable Model: LX series CPU  Error code (D8066):6625  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons A single STL branch drives 9 or more parallel circuits  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.26 Error code 6626  Applicable Model: LX series CPU  Error code (D8066):6626  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons Invalid instruction programmed within an STL - RET block: MC/ MCR/ I/ IRET/ SRET  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 325

PLC programming manual 6. System-specific list 7.8.27 Error code 6627  Applicable Model: LX series CPU  Error code (D8066):6627  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons RET instruction not found  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.28 Error code 6628  Applicable Model: LX series CPU  Error code (D8066):6628  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons I/ SRET/ IRET incorrectly programmed within main program  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 326

PLC programming manual 6. System-specific list 7.8.29 Error code 6629  Applicable Model: LX series CPU  Error code (D8066):6629  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons P or I label not found  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.30 Error code 6630  Applicable Model: LX series CPU  Error code (D8066):6630  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons SRET or IRET not found  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 327

PLC programming manual 6. System-specific list 7.8.31 Error code 6631  Applicable Model: LX series CPU  Error code (D8066):6631  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons SRET programmed in invalid location  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.8.32 Error code 6632  Applicable Model: LX series CPU  Error code (D8066):6632  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons FEND programmed in invalid location  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 328

PLC programming manual 6. System-specific list 7.8.33 Error code 6633  Applicable Model: LX series CPU  Error code (D8066):6633  Error message: Syntax error  Display error location device: D8069  LED state (RUN): OFF  LED state (PROG.E): Flicker  PLC acting state: Stop  Diagnosis timing 1) Project is changed (STOP state) 2) Project is transferred (STOP state) 3) PLC power is turned ON 4) The first RUN state after PLC turn ON  Abnormal content and reasons STL instruction not found  Solution A ladder error occurs if a combination of instructions is incorrect or badly specified. Select programming mode and correct the identified error. 7.9 Operation error (6701~6780) 7.9.1 Error code 6701  Applicable Model: LX series CPU  Error code (D8067):6701  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons 1) No jump destination for CJ or CALL instructions 2) Undefined index result and label, or exceed the range of P0 ~ P4095 3) P63 is executed by CALL instruction, the P63 is used with END instruction, and it can't be used with CALL instruction.  Solution These errors occur during the execution of an operation. When an operation error occurs, STOP the PLC, and enter programming mode and correct the error. 329

PLC programming manual 6. System-specific list Note: Operation errors can occur even when the syntax or ladder is correct, e.g. T200Z is a valid statement with WECON LX PLC. But if Z had a value of 100, the data register T300 would be attempted to be accessed. This will cause an operation error as there is no T300 device available. 7.9.2 Error code 6702  Applicable Model: LX series CPU  Error code (D8067):6702  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons 6 or more CALL instructions have been nested together  Solution These errors occur during the execution of an operation. When an operation error occurs, STOP the PLC, and enter programming mode and correct the error. Note: Operation errors can occur even when the syntax or ladder is correct, e.g. T200Z is a valid statement with WECON LX PLC. But if Z had a value of 100, the data register T300 would be attempted to be accessed. This will cause an operation error as there is no T300 device available. 7.9.3 Error code 6703  Applicable Model: LX series CPU  Error code (D8067):6703  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons 3 or more interrupts instructions have been nested together  Solution These errors occur during the execution of an operation. When an operation error occurs, STOP the PLC, and enter programming mode and correct the error. Note: Operation errors can occur even when the syntax or ladder is correct, e.g. T200Z is a valid 330

PLC programming manual 6. System-specific list statement with WECON LX PLC. But if Z had a value of 100, the data register T300 would be attempted to be accessed. This will cause an operation error as there is no T300 device available. 7.9.4 Error code 6704  Applicable Model: LX series CPU  Error code (D8067):6704  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons 6 or more FOR~NEXT instructions have been nested together  Solution These errors occur during the execution of an operation. When an operation error occurs, STOP the PLC, and enter programming mode and correct the error. Note: Operation errors can occur even when the syntax or ladder is correct, e.g. T200Z is a valid statement with WECON LX PLC. But if Z had a value of 100, the data register T300 would be attempted to be accessed. This will cause an operation error as there is no T300 device available. 7.9.5 Error code 6705  Applicable Model: LX series CPU  Error code (D8067):6705  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons The operand of the application instruction exceeds the range  Solution These errors occur during the execution of an operation. When an operation error occurs, STOP the PLC, and enter programming mode and correct the error. Note: Operation errors can occur even when the syntax or ladder is correct, e.g. T200Z is a valid statement with WECON LX PLC. But if Z had a value of 100, the data register T300 would be 331

PLC programming manual 6. System-specific list attempted to be accessed. This will cause an operation error as there is no T300 device available. 7.9.6 Error code 6706  Applicable Model: LX series CPU  Error code (D8067):6706  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons A device has been specified outside of the allowable range for an applied instruction operand  Solution These errors occur during the execution of an operation. When an operation error occurs, STOP the PLC, and enter programming mode and correct the error. Note: Operation errors can occur even when the syntax or ladder is correct, e.g. T200Z is a valid statement with WECON LX PLC. But if Z had a value of 100, the data register T300 would be attempted to be accessed. This will cause an operation error as there is no T300 device available. 7.9.7 Error code 6707  Applicable Model: LX series CPU  Error code (D8067):6707  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons A file register has been accessed which is outside of the users specified range  Solution These errors occur during the execution of an operation. When an operation error occurs, STOP the PLC, and enter programming mode and correct the error. Note: Operation errors can occur even when the syntax or ladder is correct, e.g. T200Z is a valid statement with WECON LX PLC. But if Z had a value of 100, the data register T300 would be attempted to be accessed. This will cause an operation error as there is no T300 device available. 332

PLC programming manual 6. System-specific list 7.9.8 Error code 6708  Applicable Model: LX series CPU  Error code (D8067):6708  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons FROM/TO instruction error  Solution These errors occur during the execution of an operation. When an operation error occurs, STOP the PLC, and enter programming mode and correct the error. Note: Operation errors can occur even when the syntax or ladder is correct, e.g. T200Z is a valid statement with WECON LX PLC. But if Z had a value of 100, the data register T300 would be attempted to be accessed. This will cause an operation error as there is no T300 device available. 7.9.9 Error code 6709  Applicable Model: LX series CPU  Error code (D8067):6709  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons Other error, such as unauthorized FOR-NEXT relationship  Solution These errors occur during the execution of an operation. When an operation error occurs, STOP the PLC, and enter programming mode and correct the error. Note: Operation errors can occur even when the syntax or ladder is correct, e.g. T200Z is a valid statement with WECON LX PLC. But if Z had a value of 100, the data register T300 would be attempted to be accessed. This will cause an operation error as there is no T300 device available. 333

PLC programming manual 6. System-specific list 7.9.10 Error code 6710  Applicable Model: LX series CPU  Error code (D8067):6710  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons Parameter mismatch  Solution These errors occur during the execution of an operation. When an operation error occurs, STOP the PLC, and enter programming mode and correct the error. Note: Operation errors can occur even when the syntax or ladder is correct, e.g. T200Z is a valid statement with WECON LX PLC. But if Z had a value of 100, the data register T300 would be attempted to be accessed. This will cause an operation error as there is no T300 device available. 7.9.11 Error code 6712  Applicable Model: LX series CPU  Error code (D8067):6712  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons 32 or more times high-speed compare instruction have been used  Solution These errors occur during the execution of an operation. When an operation error occurs, STOP the PLC, and enter programming mode and correct the error. Note: Operation errors can occur even when the syntax or ladder is correct, e.g. T200Z is a valid statement with WECON LX PLC. But if Z had a value of 100, the data register T300 would be attempted to be accessed. This will cause an operation error as there is no T300 device available. 334

PLC programming manual 6. System-specific list 7.9.12 Error code 6730  Applicable Model: LX series CPU  Error code (D8067):6730  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons Sampling time Ts (Ts=<0)  Solution The identified parameter is specified outside of its allowable range Execution ceases PID instruction must be reset before execution will be resumed 7.9.13 Error code 6732  Applicable Model: LX series CPU  Error code (D8067):6732  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons Input filter value α (α<0 or >=100)  Solution The identified parameter is specified outside of its allowable range Execution ceases PID instruction must be reset before execution will be resumed 7.9.14 Error code 6733  Applicable Model: LX series CPU  Error code (D8067):6733  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF 335

PLC programming manual 6. System-specific list  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons Proportional gain KP (KP<0)  Solution The identified parameter is specified outside of its allowable range Execution ceases PID instruction must be reset before execution will be resumed 7.9.15 Error code 6734  Applicable Model: LX series CPU  Error code (D8067):6734  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons Integral time constant TI (TI<0)  Solution The identified parameter is specified outside of its allowable range Execution ceases PID instruction must be reset before execution will be resumed 7.9.16 Error code 6735  Applicable Model: LX series CPU  Error code (D8067):6735  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons Derivative gain KD (KD<0 or >=201)  Solution The identified parameter is specified outside of its allowable range 336

PLC programming manual 6. System-specific list Execution ceases PID instruction must be reset before execution will be resumed 7.9.17 Error code 6736  Applicable Model: LX series CPU  Error code (D8067):6736  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons Derivative time constant TD (TD<0)  Solution The identified parameter is specified outside of its allowable range Execution ceases PID instruction must be reset before execution will be resumed 7.9.18 Error code 6740  Applicable Model: LX series CPU  Error code (D8067):6740  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON  LED state (PROG.E): OFF  PLC acting state: Run  Diagnosis timing When PLC is running  Abnormal content and reasons Sampling time Ts is less than the program scan time  Solution Ts is set to program scan time, the execution will continue. 7.9.19 Error code 6742  Applicable Model: LX series CPU  Error code (D8067):6742  Error message: Operation error  Display error location device: D8069  LED state (RUN): ON 337