1/18/2016 8:20 AM | |
Posts: 35 Rating: (0) |
Dear All, The existing system having CPU 414-2DP with 2 Nos of ET200M nodes(HW Config attached) In that we are getting the errors as below sometime, "Event 1 of 120: Event ID 16# 38C4 Distributed I/Os: station return Address of the affected DP slave: station number: 4 DP master system ID: 1 Log. base address of the DP slave: Input address: 2040 Log. base address of the DP master: 1900 Requested OB: Rack failure OB (OB86) Priority class: 26 External error, Outgoing event 11:51:46.553 PM 01/04/1994 (Coding: 16# 38C4 1A56 C054 076C 07F8 0104)" "Event 2 of 120: Event ID 16# 39B1 I/O access error when updating the process image input table P area, word access, access address: 36 process image partition no.: 0 not user relevant(Z1): 2942 Requested OB: Program execution error OB (OB85) Priority class: 26 External error, Incoming event 11:51:46.549 PM 01/04/1994 (Coding: 16# 39B1 1A55 2050 2942 0000 0024)" Bus fault led in CPU and node-4 is ON. It is not getting reset after many power cycles also. But after sometime like 5 hours (It is not consistent), system is getting ok. We checked all power supplies to the modules and nodes. We changed the profibus cable and connectors also. But still the problem is remains. But we never faced this type of issue in Node-3 which is on the same network. whenever we are switching off the machine for holiday, Then first day we are not able to run because of this. Sometime it is happening on running machine. I attached the Diag information for your reference. Please let me know your all suggestions to find out where the problem is exist and solve out. Thanks & Regards, San Kannan AttachmentHW and Events.zip (348 Downloads) |
1/18/2016 10:25 AM | |
Joined: 7/9/2015 Last visit: 9/24/2024 Posts: 3943 Rating: (586) |
Hi,
sorry, I don´t know the reason for your proble. This PLC is an older one. Did you try to update the Firmware? Check FW. Did you reset PLC to factory settings - then try again. https://support.industry.siemens.com/cs/de/en/view/109475012
Hope this helps, Regards, Towome
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3/31/2016 4:04 PM | |
Joined: 4/4/2011 Last visit: 9/19/2024 Posts: 65 Rating: (11) |
Hello! I attach one link here where you can find the manual for this et200M that you have. Have you tried to swap the two et200 between them to check maybe there is a malfunction on the one with number 4? In the manual is also specified that you should check the baud rate of your DP. Also can be that the lowermost dip switch should be in the OFF position (i think this is for et200s but anyhow worth a shot). Hope it helps. Regards |
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