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S7-400H system status LEDs

11/24/2010 9:21 PM	Rate (0)
Plc engineer Posts: 34 Rating: (0)	Hi Guys I has been working on S7-400H system with CPU 417-4H.Now i wana see all LEDs status on my wincc HMI. that is which CPU is master,which cpu have wht type of fault(Only Cpu LEDs fault) etc??? Is there any FB,FC,SFB in Step-7 library so that i can use that function to solve my problem??? I dont wana use CFC. Thnx PLC Engineer
Plc engineer Posts: 34 Rating: (0)
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11/25/2010 7:35 AM	Rate (1)
umencho Grandmaster Joined: 3/21/2006 Last visit: 10/16/2025 Posts: 10239 Rating: (1183)	Hello, Look at http://support.automation.siemens.com/TW/view/en/9985721and the other similar way http://support.automation.siemens.com/WW/view/en/22727527 Hope this helps. Best regards, Hristo Mihalev

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This contribution was helpful to 1 thankful Users S7 AUTOMAN

11/25/2010 10:55 AM	Rate (0)
hdhosseini Diamond Member Joined: 1/28/2009 Last visit: 12/24/2025 Posts: 6885 Rating: (1368)	Dear member this is part of System Software for S7-300/400 System and Standard Functions manual for using SFC51 to read a module's LEDs status 34.20 SSL-ID W#16#xy74 - Status of the Module LEDs Purpose If you read the partial list SSL-ID W#16#xy74, with standard CPUs (if present) and with the H CPUs, you obtain the status of the module LEDs. If the H CPUs are in a non-redundant H mode, you obtain the LED status of the CPU addressed. If the H CPUs are in the RUN-REDUNDANT mode, the LED status of all redundant H CPUs is returned. Also check this link for sample example. regards Attachment system.pdf (1489 Downloads)
	Demo Channel on Youtube
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This contribution was helpful to 1 thankful Users Ahmad Magdy