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SF lamp on, OB121 error

Created by: Ton Verra at: 5/31/2007 12:00 PM (2 Replies)

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5/31/2007 12:00 PM	Rate (0)
Ton Verra Gold Member Joined: 4/20/2007 Last visit: 1/2/2026 Posts: 731 Rating: (43)	Hello, I've got a slight problem. Ive loaded a project to a CPU 313C. When starting the PLC it gives the red SF-light. In the moduleinformation menu, on the tab diagnostic buffer I find 10 events. Area length error when writing Global DB, bit acces, Acces address: 26 Requested OB: Programming error OB (OB121) Priority class: 12 Internal error, incoming event. Event ID: 16#2523 and Area length error when reading Global DB, double-word acces, Acces address: 22 Requested OB: Programming error OB (OB121) Priority class: 12 Internal error, incoming event. Event ID: 16#2522 Anyone an idea how to tackle this problem? Regards, Ton Verra

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5/31/2007 2:10 PM	Rate (1)
Aret Posts: 2348 Rating: (265)	Write BEU in the beginning of OB1^). If errors won't occur then it's something wrong in your programm.
Aret Posts: 2348 Rating: (265)
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5/31/2007 3:03 PM	Rate (0)
Ton Verra Gold Member Joined: 4/20/2007 Last visit: 1/2/2026 Posts: 731 Rating: (43)	Thank you for the swift answer. We solved the problem now. Seems there was a block that shouldnt be there. Thanks again!

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