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S7-400H which CPU is Master??

Created by: Plc engineer at: 11/25/2010 8:40 PM (2 Replies)

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11/25/2010 8:40 PM	Rate (0)
Plc engineer Posts: 34 Rating: (0)	Hi Guys, I have been working on S7-400H system wd CPU417-4H.I posted this thread before but couldn't have exact answer.I wana take some decision in STEP-7 on the basis of which CPU is Master?and which CPU is Standby??i mean something like that if CPU0 is master a particular bit should be set and if CPU1 is master it should be reset. I have a document which shows that i can have information abt CPU if i use FB523.But i couldn't find FB523 anywhere in Library....I dont want to use CFC also. Can anybody help me?? Thanks PLC Engineer
Plc engineer Posts: 34 Rating: (0)
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11/25/2010 9:20 PM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating: (1365)	Dear member The attachment is part (section 34.19 )of this manual.I have tested SFC51 with SSL-ID W#16#xy71 (H CPU Group Information) with STL.bit 4,5 of Mwstat1 in data record of mentioned partial list extract indicates H status of CPU in rack1 and rack2. Attachment system_h.pdf (714 Downloads)
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11/26/2010 3:13 PM	Rate (0)
O_Moderator Diamond Member Joined: 4/24/2009 Last visit: 8/20/2024 Posts: 2682 Rating: (135)	Thread closed, because question is already published in the following thread S7-400H system status LEDs. Best regards O_Moderator
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