PCS7系统,运行中突然通讯中断,CPU类似于死机状态,重新断电后正常,运行了大约20多天了,,
看了一下
STOP caused by PG stop operation or by SFB 20 "STOP"
程序中没有SFB20这个程序块,
PG 也不可能造成停机,,
怀疑是不是OB34过负荷造成的停机,新加程序太多,OB循环时间长,一直有个OB34块的报警。
Event 453 of 2999: Event ID 16# 530D
New startup information in STOP mode
Startup prevented by:
- STOP request exists
- Cold restart or warm restart necessary
Startup information:
- Time for time stamp at the last backed up power on
- Single processor operation
Current/last startup type:
- Automatic warm restart after backed up power on
Permissibility of certain startup types:
- Manual warm restart permitted
Last valid operation or setting of automatic startup type at power on:
- No startup type/following memory reset
Operating mode: STOP (internal)
Incoming event
08:38:32.313 AM 10/28/2021
(Coding: 16# 530D FF04 C777 0041 0810 0700)
Event 454 of 2999: Event ID 16# 4304
STOP caused by PG stop operation or by SFB 20 "STOP"
Previous operating mode: RUN
Requested operating mode: STOP (internal)
Incoming event
08:38:32.311 AM 10/28/2021
(Coding: 16# 4304 FF84 0000 4D00 0000 0000)
Event 455 of 2999: Event ID 16# 3502
OB request error
No relevance for user (Z1): 0000
Cause: Cyclic interrupt clock pulse generator 5
Causing OB: Cyclic interrupt OB (OB 34)
Causing priority class: 11
Requested OB: Timing error OB (OB80)
Priority class: 26
Internal error, Incoming event
08:38:31.288 AM 10/28/2021
(Coding: 16# 3502 1A50 C358 0000 1135 0B22)
之前的缓冲区报警都是OB34问题