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Identifying comms loss

8/5/2010 10:27 AM	Rate (0)
MatJ Posts: 14 Rating: (0)	I am programming the S7-1200 for the first time (have used S7-300 and S7-400 many times before) and need to program a function that can identify when communications is lost between the S7-1200 CPU and its connected HMI device. This in turn will trigger an alarm in the CPU, which in turn illumintaes a lamp on a control panel. Can anyone offer any advice on the best way to go about this for this system? I have had a rake around the various features and functions with no luck so far! Cheers!
MatJ Posts: 14 Rating: (0)
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8/5/2010 12:24 PM	Rate (0)
Denilson Pegaia Diamond Expert Joined: 9/23/2005 Last visit: 12/30/2025 Posts: 4435 Rating: (1487)	Hi, in the HMI connections properties, you can set a "cordination" workd. In this work, the bit 2 is a live bit. You can use it in your program.
	Denilson Pegaia Siemens Industry Sector Technical Support
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This contribution was helpful to 1 thankful Users Darius

8/5/2010 12:47 PM	Rate (0)
MatJ Posts: 14 Rating: (0)	Great found it, many thanks!
MatJ Posts: 14 Rating: (0)
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8/6/2010 12:05 PM	Rate (0)
Denilson Pegaia Diamond Expert Joined: 9/23/2005 Last visit: 12/30/2025 Posts: 4435 Rating: (1487)	it is a pleasure to help you.
	Denilson Pegaia Siemens Industry Sector Technical Support
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