现场设备突然跳闸又瞬间恢复,到电气室看CPU是正常的,在CPU报警信息有以下内容:
Event 1 of 120: Event ID 16# 38C4
Distributed I/Os: station return
Address of the affected DP slave: station number: 5
DP
master system ID: 1
Log. base address of the DP slave: Input address: 4090
Log. base address of
the DP master: 4095
Requested OB: Rack failure OB (OB86)
Priority class: 25
External error, Outgoing event
02:17:40.969 PM 06/02/2012
Event 2 of 120: Event ID 16# 2943
I/O access error, writing
P area, word access, Access address: 270
FC number: 85
Module address: 678
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
02:17:40.967 PM 06/02/2012
Event 3 of 120: Event ID 16# 2943
I/O access error, writing
P area, word access, Access address: 266
FC number: 85
Module address: 560
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
02:17:40.967 PM 06/02/2012
Event 4 of 120: Event ID 16# 2943
I/O access error, writing
P area, word access, Access address: 258
FC number: 69
Module address: 2408
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
02:17:40.966 PM 06/02/2012
Event 34 of 120: Event ID 16# 2942
I/O access error, reading
P area, double-word access, Access address: 336
FC number: 11
Module address: 98
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
02:17:40.954 PM 06/02/2012
还有很多报警是不是CPU突然跳引起的呢,我该怎样处理此故障,帮帮忙!
急啊!
最佳答案
都是 IO故障或背板故障。
首先你先确定你的程序里有ob82 ob86 ob122 ob121等防止CPU自动由故障转为STOP的模块。
其次,如果你有这些模块还是引起了这样的故障,有两个可能,1CPU有问题,2电源有问题
检查电源,主要是给CPU供电的电源,西门子的电源不错,在短路的情况是一般不会烧,而是自动停止,如果你的电源给了别的设备且有瞬间短路的情况,就是这个样子的故障,也有可能是哪里松动或短路。CPU有问题,有可能是CPU本身的问题,也有可能是你CPU后面哪一个背板插的不好导致松动了,也会出这个问题的。
提问者对于答案的评价:
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