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5/27/2014 11:03 PM | |
Posts: 5 Rating: (0) |
Iam having issues with my controller putting my loops in manual after a faults on several instruments. wincc is showing: S7PROG_C001-002@(3)/IM_157Redundancy1 (dpSlave1/11 Failure) device1/11/3 (which is a temp transmitter that is not there.... S7PROG_C001-002@(3)/IM_157Redundancy1 (dpSlave1/10 Failure) after this I have about 20 instrument addreses listed.... not the physical layout has these two nodes are right beside each other, and we are using a profibus dp terminator. this problem has popped up about 4 days ago and again yesterday. looked at the diagnostic buffer on the controller and it shows OB82,85,86. the power to each p/s has its own seperate circuit on a ups. we use 443-5 comms card. we also have a bus2f flashing and (sf) led. Ihave checked the profibus connections at both racks and they look good.(this system has been running fine for 6-7 years). There was a programming change about two weks ago where a flow switch was removed from the program but like i said its been two weeks ago. I guess the problem I am having is we are getting the instrument faults on two seperate profibus racks... any help why this is happening would be appreciated! |
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