COMMUNICATION PROBLEM BETWEEN CENTRAL RACK AND EXPANSION RACK

SYSTEM: S7 400, IM 460-0 (SENDER), IM 461-0 (RECEIVER)

PROBLEM: S7 400 COMMUNICATED WITH EXPANSION IO SITUATED ON EXPANSION RACK THROUGH IM 460-0 INSERTED ON CENTRAL RACK AND IM 461-0 INSERTED ON EXPANSION RACK THE PROBLEM IS THAT EXTERNAL FAULT APPERARED ON BOTH SENDER IM AND RECEIVER IM.

WE CHECKED HEALTHINESS OF BOTH IM'S AND CABLE BETWEEN TWO IM'S IT WAS FOUND OK.

MODULE INFORMATION SHOWS MODULE PARAMETER ASSINMENT ERRORS FOR RECEIVER IM, CONFIGURED AND ACTUAL MODULES ARE DIFFERNT SO, WE ALSO CHECKED MLFB NO'S OF BOTH CONFIGURED AND ACTUAL MODULE IT ALSO FOUND OK. SO WHAT IS A PROBLEM PLEASE SEND ME SOLUTION AS SOON AS POSSIBLE.

PLEASE FIND ATTACHED FILE FOR CONFIGURED HARDWARE AND ERRORS

THANKS AND REGARDS,

PRASHANT

COTMAC ELECTRONICS, SURAT.

EMAIL ID: projects.surat@cotmac.com