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(b) When an error occurs in a module other than the MELSECNET/H remote I/O module
Open the "Module's Detailed Information" window to check the error.
[Diagnostics] [System monitor] [Module's Detailed Information]
(3) Checking the corresponding error code in a device
Error causes can be checked in the link special register (SW).
(4) Storage areas for the error codes of dedicated instructions
The error codes of the errors that occur at the execution of the dedicated instructions are stored in the completion
status (S1)+1 of the control data or the link special register (SW) of the remote master station as well as the
MELSECNET/10 remote I/O network. ( Reference manual for the MELSECNET/10 network system used)
Link special register Description
SW0020 Module status
SW0048 Cause of baton pass interruption
SW0049 Cause of data link stop
SW004B Host CPU status
SW004D Data linking start status (host)
SW004F Data linking stop status (host)
SW0051 Data linking start status (entire system)
SW0053 Data linking stop status (entire system)
SW0055 Parameter setting status
SW00EE Transient transmission error
SW00EF Transient transmission error pointer
SW00F0 to SW00FF Transient transmission error history
SW01C4 Remote sub-master station switching result