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Chapter 11 Troubleshooting
7
Pnet I/F Module 2MLL-PSRA, 2MLL-PMEA, 2MLL-PMEB User
’s Guide
R220
Honeywell
January 2019
11.3 Diagnosis of Communication Module through SoftMaster
SoftMaster connection program can be used to monitor the communication module simply. Connect with
CPU port and then select [Online] -> [Diagnosis] -> [PLC History] in SoftMaster.
[Figure 11.3.1] PLC history details monitor
If a hardware error or a CPU interface error occurs on the module, LED of the communication module itself
operates abnormally in general, whose status can be monitored simply through its dedicated program.
[Figure 11.3.1] shows Error/Warning information through PLC History on the SoftMaster [Diagnosis] menu.