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simatic s5 cpu 948

Created by: www.opauto.no at: 10/31/2014 6:46 PM (5 Replies)

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10/31/2014 6:46 PM	Rate (0)
www.opauto.no Regular Member Joined: 1/26/2014 Last visit: 8/28/2019 Posts: 32 Rating: (0)	Hi. I have 2 problems with an 948 CPU. Issue 1: Cannot communicate via PG interface. Tryed to insert PG submodule without any luck. Still no coms. SHutdown PLC, removed backup battery so the CPU is totaly erased. CPU works fine. Issue 2: If i try to download the Program from the CPU: is the CPU ok or is it suffering from Memory corruption ? Someone ? RGDS Oystein.

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11/4/2014 1:42 AM	Rate (0)
PLCforEver Advanced Member Joined: 5/2/2008 Last visit: 5/2/2017 Posts: 99 Rating: (3)	"Still no coms. SHutdown PLC, removed backup battery so the CPU is totaly erased. CPU works fine." So I guess you regain communication between your PG and the PLC. Did you look at PLC info in Step5? "Issue 2: If i try to download the Program from the CPU:" I think there is a statement missing here... "is the CPU ok or is it suffering from Memory corruption ?" If the PLC has been in a humid or harsh environnement, it is a possibility..

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11/4/2014 1:55 PM	Rate (0)
www.opauto.no Regular Member Joined: 1/26/2014 Last visit: 8/28/2019 Posts: 32 Rating: (0)	Sorry!! filled out the issues with missing info!!! Issue 1: Cannot communicate via PG interface: Tryed to insert spare PG submodule without any luck to establising coms to CPU. If i switch of the powersupply and restart the PLC, everything is ok again. Issue 2: If i try to transfer the program from the CPU to PG. PLC goes into stop acessing an specific block example DX 119. If i backup around the corrupted block, everything goes fine. However this fault occurs suddenly without any work in the specific block. Compressing the memory will not solve the problem either. Anyone experienced the same ? Someone ? RGDS Oystein.

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11/5/2014 7:11 AM	Rate (0)
sps-concept Gold Member Joined: 4/5/2006 Last visit: 7/4/2019 Posts: 640 Rating: (129)	Hello, you plugged the submodule during power is on? Regards André Räppel --------------------------------------------------------------------------------- www.raeppel.de work faster withinnovative PLC-Tools

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11/18/2014 12:49 PM	Rate (0)
www.opauto.no Regular Member Joined: 1/26/2014 Last visit: 8/28/2019 Posts: 32 Rating: (0)	submodule was inserted while the system was running! RGDS ØP

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11/18/2014 8:25 PM	Rate (0)
sps-concept Gold Member Joined: 4/5/2006 Last visit: 7/4/2019 Posts: 640 Rating: (129)	Hello, i think this is not the correct way. Regards André Räppel --------------------------------------------------------------------------------- www.raeppel.de work faster withinnovative PLC-Tools

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