Chapter 16 Troubleshooting; Before Troubleshooting; Troubleshooting Procedure - Mitsubishi Electric MELSEC-L SERIES Basic User Manual

CHAPTER 16
This chapter describes how to identify causes of problems that occur when an E71 is used and take corrective action.
16.1

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) for the CPU module used
16.2

Troubleshooting Procedure

How to identify the cause of a problem and take corrective action is explained below. Use a programming tool to
identify the cause and take corrective action.
(1) Procedure
TROUBLESHOOTING
1.
Connect the CPU module to a programming tool,
and open the "System Monitor" window.
2.
When an error in the E71 is reported, select the E71
and click the
When an error in a module other than the E71 is
reported, refer to the manual for that module.

CHAPTER 16 TROUBLESHOOTING

[Diagnostics] [System Monitor]
button.
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