[?] Problem : Redundant system is going to Stop mode!

[serhan]

I have redundant S7-414H PLCs in my PCS7 automation system. We are receiving signals from another units S7-300 through our redundant profibus. When the S7-300 components are reset or my IM-157 module power off or my Y-LINK power off , my redundant 414H system is going to stop mode

The link below is including the screenshot and diagnose report of my system. Please help me.


http://plcforum.uz.ua//help.zip.html
or
http://narod.ru/disk/2072778000/help.zip.html


Best Regards.
Serhan

Event 856 of 3000: Event ID 16# 5371
Distributed I/Os: end of the synchronization with a DP master
Slot of the DP master: 3 in rack 0
Number of distributed stations: 3
Event occurred in the master CPU in rack 0
Incoming event
11:01:26:683 am 08/14/08


Event 857 of 3000: 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:
- Warm restart triggered by switch setting
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)
Event occurred in the master CPU in rack 0
Incoming event
11:01:11:688 am 08/14/08


Event 858 of 3000: Event ID 16# 4541
STOP caused by priority class system
Event: OB1 start event initiated by end of OB1(free cycle)
OB number: Cyclic program (OB1)
Priority class: 1
Previous operating mode: RUN (redundant mode)
Requested operating mode: STOP (internal)
Event occurred in the standby CPU in rack 1
Internal error, Incoming event
11:01:11:684 am 08/14/08


Event 859 of 3000: Event ID 16# 4541
STOP caused by priority class system
Event: OB1 start event initiated by end of OB1(free cycle)
OB number: Cyclic program (OB1)
Priority class: 1
Previous operating mode: RUN (redundant mode)
Requested operating mode: STOP (internal)
Event occurred in the master CPU in rack 0
Internal error, Incoming event
11:01:11:683 am 08/14/08


Event 860 of 3000: Event ID 16# 43E3
Master CPU: Change from redundant mode to solo mode
Previous operating mode: RUN (redundant mode)
Requested operating mode: RUN
Event occurred in the master CPU in rack 0
Incoming event
11:01:11:683 am 08/14/08


Event 861 of 3000: Event ID 16# 7301
Loss of redundancy (2oo2) due to CPU failure
CPU affected: Standby CPU in rack 1
Event: STOP caused by priority class system
Requested OB: CPU redundancy error OB (OB72)
Priority class: 28
Incoming event
11:01:11:683 am 08/14/08

[Jimbo]

hello,

Just as the error logs asks, you need to include the OB 72 to handle the redundancy error. if you don't need to take action just include an empty OB

Regards

[serhan]

hello,

Just as the error logs asks, you need to include the OB 72 to handle the redundancy error. if you don't need to take action just include an empty OB

Regards

I have the OB72 also but if I want to solve the stop mode problem, just I can delete the existing OB and I can add an empty OB 72 , is it right ?