426
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 power supply module and the MODE LED of the CPU module are on. If either or
both are off, troubleshoot the CPU module. (
User’s Manual (Hardware Design, Maintenance and Inspection) of
the relevant CPU module)
12.2
Troubleshooting Procedure
The procedure for identifying the cause of the problem and taking action is explained below.
If a slave station cannot be monitored due to an error such as cable disconnection, directly connect the supported
programming tool to the slave station.
(1) Procedure
If data link cannot be performed even though no error is indicated in the "System Monitor" window, select the master/local
module, and click the
button. (
Page 428, Section 12.2 (1) (b))
1.
Connect GX Works2 to the CPU module, and open
the "System Monitor" window.
[Diagnostics]
[System Monitor]
2.
Select the module in which an error has occurred.
• When a module other than a master/local module is
selected
Page 427, Section 12.2 (1) (a)
• When the selected module is the master/local module
