②Check 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.

Set the error operation mode of a

JW-20CM master module to “2.”

YES

FT lamp turns ON

 

Exchange JW-20CM

 

NO

Monitor “individual communication flag” in support tool.

 

 

 

 

Check and exchange the “bus

 

 

 

YES

 

cable” and “branch cable” to

 

 

Error only 1 station

 

 

the station with the error or the

 

8

 

 

 

 

 

“station error module where

 

 

NO

 

the error occurred.”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

At plural station error

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