故障诊断如下:
Diagnostic buffer of module CPU 315-2 DP
Event 1 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 2000
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
04:28:25.010 AM 11/21/2012
(Coding: 16# 2942 017A 0020 07D0 0000 0000)
Event 2 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 2000
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
04:28:25.010 AM 11/21/2012
(Coding: 16# 2942 017A 0020 07D0 0000 0000)
Event 3 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 2000
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
04:28:25.010 AM 11/21/2012
(Coding: 16# 2942 017A 0020 07D0 0000 0000)
Event 4 of 10: Event ID 16# 2942
I/O access error, reading P area, word access, Access address: 2000
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
04:28:25.009 AM 11/21/2012
(Coding: 16# 2942 017A 0020 07D0 0000 0000)
Event 5 of 10: Event ID 16# 2523
Area length error when writing
Instance DB, word access, Access address: 138
Requested OB: Programming error OB (OB121)
Priority class: 1
Internal error, Incoming event
04:28:25.006 AM 11/21/2012
(Coding: 16# 2523 0179 0025 008A 0000 0000)
Event 6 of 10: Event ID 16# 2523
Area length error when writing
Instance DB, word access, Access address: 136
Requested OB: Programming error OB (OB121)
Priority class: 1
Internal error, Incoming event
04:28:25.006 AM 11/21/2012
(Coding: 16# 2523 0179 0025 0088 0000 0000)
Event 7 of 10: Event ID 16# 2523
Area length error when writing
Instance DB, word access, Access address: 134
Requested OB: Programming error OB (OB121)
Priority class: 1
Internal error, Incoming event
04:28:25.006 AM 11/21/2012
(Coding: 16# 2523 0179 0025 0086 0000 0000)
Event 8 of 10: Event ID 16# 2523
Area length error when writing
Instance DB, word access, Access address: 132
Requested OB: Programming error OB (OB121)
Priority class: 1
Internal error, Incoming event
04:28:25.006 AM 11/21/2012
(Coding: 16# 2523 0179 0025 0084 0000 0000)
Event 9 of 10: Event ID 16# 2523
Area length error when writing
Instance DB, word access, Access address: 130
Requested OB: Programming error OB (OB121)
Priority class: 1
Internal error, Incoming event
04:28:25.006 AM 11/21/2012
(Coding: 16# 2523 0179 0025 0082 0000 0000)
Event 10 of 10: Event ID 16# 2523
Area length error when writing
Instance DB, word access, Access address: 128
Requested OB: Programming error OB (OB121)
Priority class: 1
Internal error, Incoming event
04:28:25.006 AM 11/21/2012
(Coding: 16# 2523 0179 0025 0080 0000 0000)
请帮忙分析一下
问题补充:
Diagnostic buffer of module CPU 315-2 DP
Order No./ Description Component Version
6ES7 315-2AH14-0AB0 Hardware 2
- - - Firmware V 3.0.3
Boot Loader Firmware expansion A 25.7.5
Rack: 0
Slot: &nb
专家建议
"老柳树" 你好!
从诊断缓冲区内容来看,问题主要有以下几点:
1.I/O访问错误,程序*问到了PIW2000的地址,但是实际模块并不存在,例如:模块没有插入或者模块所在的DP从站故障。
2.背景DB的长度访问错误,可能是背景DB没有下载或者程序访问地址超出了背景DB的范围。
提问者对于答案的评价:
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