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othmane_benz
Junior
Joined: 10 Nov 2017
Posts: 14
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 Posted: 25/12/2017 16:25 Post subject: CPU S7-300 write access error at the periphery |
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Hello ,
I need help on the maintenance of a cpu s7-300,
I have the SF LED fixed in red,
according to my diagnosis on the bufer I received this notification:
"" Write access error at the edge
Zone P, double-word access, Access address: 264
OB required: OB access error at the I / O (OB 122)
Priority class: 1 ""
how should I fix this problem?
Thanks for your help |
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mbarnier
Junior
Joined: 05 Dec 2017
Posts: 6
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| Posted: 25/12/2017 20:31 Post subject: Re: CPU S7-300 write access error at the periphery |
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| othmane_benz wrote: | Hello ,
I need help on the maintenance of a cpu s7-300,
I have the SF LED fixed in red,
according to my diagnosis on the bufer I received this notification:
"" Write access error at the edge
Zone P, double-word access, Access address: 264
OB required: OB access error at the I / O (OB 122)
Priority class: 1 ""
how should I fix this problem?
Thanks for your help |
Please show the Diagnostic buffer of CPU?
Check something like "Event 2 of 120: Event ID 16# 2942"
Show it..
Eventually in HWConfig...
In HWconfig double click on plc, cycle/clock memory - there you've got Size of the process input/output area.
Check if you're not using inputs/outputs with addresses higher than these declared in HWConfig. |
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SHKODRAN
Member
Joined: 25 Apr 2012
Posts: 140
Location: Russia
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| Posted: 26/12/2017 11:29 Post subject: |
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Hi,
Post here you program code, someone will check for you.
Regards. |
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othmane_benz
Junior
Joined: 10 Nov 2017
Posts: 14
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| Posted: 28/12/2017 15:48 Post subject: Re: CPU S7-300 write access error at the periphery |
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| mbarnier wrote: | | othmane_benz wrote: | Hello ,
I need help on the maintenance of a cpu s7-300,
I have the SF LED fixed in red,
according to my diagnosis on the bufer I received this notification:
"" Write access error at the edge
Zone P, double-word access, Access address: 264
OB required: OB access error at the I / O (OB 122)
Priority class: 1 ""
how should I fix this problem?
Thanks for your help |
Please show the Diagnostic buffer of CPU?
Check something like "Event 2 of 120: Event ID 16# 2942"
Show it..
Eventually in HWConfig...
In HWconfig dublu click on plc, cycle/clock memory - there you've got Size of the process input/output area.
Check if you're not using inputs/outputs with addresses higher than these declared in HWConfig. |
thank's,
I solved the problem,
the SF LED is off, I have an ob122 but it is empty, the CPU still works.
I could delete this address in the program through the cross references,
it is an analog input PEW264, I deleted because the card is missing |
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othmane_benz
Junior
Joined: 10 Nov 2017
Posts: 14
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| Posted: 28/12/2017 15:49 Post subject: |
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| SHKODRAN wrote: | Hi,
Post here you program code, someone will check for you.
Regards. |
thank's SHKODRAN |
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