Beckhoff TwinCat 2.10 - PLC task access violation

Join Date
Apr 2014
Location
Vadodara
Posts
49
We are facing one issue in our TwinCat 2.10 system running on Beckhoff IPC C6140 with operating system Win2000

suddenly our machine got off or restart and Visual screen is showing following error..

TwinCAT PLC Server
'Plc Task Access violation (Page Fault)' P1:8 P2:807 a6a1b P3:7d10b4 P4:0


Can anyone help on this issue..


Thank You
 
Since nobody else answered, I'll give a shot. Google "page fault" in Windows. It refers to a problem reading virtual memory (hard drive used like RAM). Perhaps something like trying to open a file which you don't have rights to or the file is already open in another program (perhaps your own). See if your PLC code does any direct file I/O. Might also have to do with another program running in the background, such as System Manager or PLC-Control. Also check your virtual memory settings in Windows. Best to use actual RAM whenever possible since PLC must be real-time. Keep the graveyard shift from trying to run game programs on the IPC, or anything else which will tie up RAM. Check Beckhoff's recommendations on virtual memory settings. I would think "disabled" would be safest.
 
Last edited:

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