(2)Check cable/connector
As errors on the junction from the main cable to the drop cable or the contact failure on the connecting point of each station or errors of the master module are assumed, check with the following procedure.
YES
UNT. E lamp turns ON |
| Exchange master module |
|
NO
Monitor individual communication flag See page
Error only 1 station
NO
Check and exchange the bus YES cable and branch cable to 
the station with the error or the
station error module where the error occurred.
At plural station error
See next page
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