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CHAPTER 12 TROUBLESHOOTING
12
12.1 Before Troubleshooting
CHAPTER 12 TROUBLESHOOTING
This chapter describes errors that may occur on CC-Link IE Field Network, causes of the errors, and corrective
actions.
12.1 Before Troubleshooting
Check that the POWER LED of the safety power supply module and the ALIVE LED of the safety CPU module are on.
If either or both are off, troubleshoot the safety CPU module. ( QSCPU User’s Manual (Hardware Design,
Maintenance and Inspection))
12.2 Troubleshooting Procedure
The procedure for identifying the cause of the problem and taking action is explained below.
Use a programming tool supported by the programmable controller used: GX Developer for safety programmable
controllers and GX Works2 for standard programmable controllers.
If a slave station cannot be monitored due to cable disconnection or any other error, directly connect the programming
tool to the slave station.