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(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.
UNT. E lamp turns ON
Monitor individual communication flag
in support tool.
Error only 1 station
At plural station error
See next page
YES
Exchange master module
NO
See page 12-2
Check and exchange the bus
cable and branch cable to
YES
the station with the error or the
station error module where
the error occurred.
NO
16-3
16
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