plc停止运行,cpu消息如下:
Event 3 of 10: Event ID 16# 4301
Mode transition from STOP to STARTUP
STOP due to: Power failure
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
- Automatic warm restart permitted
Last valid operation or setting of the automatic startup type at power on:
- Automatic warm restart after backed up power on
Previous operating mode: STOP (internal)
Requested operating mode: STARTUP (warm restart)
Incoming event
05:21:08.492 PM 10/20/1995
Event 4 of 10: Event ID 16# 38C4
Distributed I/Os: station return
Address of the affected DP slave: station number: 25
DP master system ID: 1
Log. base address of the DP slave: Input address: 2046
Log. base address of the DP master: 32767
Requested OB: Rack failure OB (OB86)
OB not found, or disabled, or cannot be started in the current operating mode
External error, Outgoing event
05:20:59.004 PM 10/20/1995
Event 5 of 10: Event ID 16# 5371
Distributed I/Os: end of the synchronization with a DP master
Slot of the DP master: 2
Number of distributed stations: 1
Incoming event
05:20:57.522 PM 10/20/1995
Event 6 of 10: Event ID 16# 4300
Power on backed up
Previous operating mode: No voltage
Requested operating mode: STOP (own initialization)
Incoming event
05:20:54.038 PM 10/20/1995
Event 7 of 10: Event ID 16# 494E
Power failure
Previous operating mode: STOP (internal)
Requested operating mode: No voltage
External error, Incoming event
05:20:41.034 PM 10/20/1995
Event 8 of 10: Event ID 16# 38C4
Distributed I/Os: station return
Address of the affected DP slave: station number: 25
DP master system ID: 1
Log. base address of the DP slave: Input address: 2046
Log. base address of the DP master: 2047
Requested OB: Rack failure OB (OB86)
OB not found, or disabled, or cannot be started in the current operating mode
External error, Outgoing event
05:20:02.164 PM 10/20/1995
Event 9 of 10: Event ID 16# 456F
STOP caused by rack failure (OB not loaded or not possible, or no FRB)
Breakpoint in user program: Cyclic program (OB1)
Priority class: 1
FC number: 2
Module address: 246
Previous operating mode: RUN
Requested operating mode: STOP (internal)
Internal error, Incoming event
05:20:00.718 PM 10/20/1995
Event 10 of 10: Event ID 16# 39C4
Distributed I/Os: station failure
Address of the affected DP slave: station number: 25
DP master system ID: 1
Log. base address of the DP slave: Input address: 2046
Log. base address of the DP master: 2047
Requested OB: Rack failure OB (OB86)
Priority class: 26
External error, Incoming event
05:20:00.705 PM 10/20/1995
不知问题出在那,那位高手解释一下万分感谢!
最佳答案
1。首先PLC的诊断提示是:25#DP slave机架站号(即DP地址号)有故障,但又缺少OB86块(机架故障组织块),从而导致CPU中断停机;
2。诊断提示中还列出由OB1块调用执行的FC2用户程序功能块可能有程序执行错误,导致CPU中断停机;
因此,我建议你按的如下两项方法处理:
1。首先将OB8X系列诊断组织块(例如OB80、OB81、OB82、OB83、OB84、OB85、OB86、OB88和OB121、OB122)下载至PLC中,可有效避免CPU的异常停机;
2。然后仔细检查由OB1块调用执行的FC2用户程序功能块,是否有编程逻辑错误(例如:访问了实际不存在的存储地址编号、指针或数组索引号不存在,或超限等原因)。
提问者对于答案的评价:
可能是机架问题。
原创文章,作者:ximenziask,如若转载,请注明出处:https://www.zhaoplc.com/plc351854.html