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Monitoring has effect on outputs

4/14/2010 9:45 AM	Rate (0)
chat Posts: 8 Rating: (33)	I have a strange effect with a 315 2 DP PLC recent version. When I ammonitoring in a FC, the digital outputs go to zero for a short time in the same frequency the monitoring is working. Itscares me a lot.This effect only excist with the monitoring (glasses) on and not in all FC's, FB's.I have seen it whenI was monitoring with MPI and with a CP343-1ethernet card. There is no error in the CPU, a small processorload and the monitoring time was default 20%, no consistency error in the program.
chat Posts: 8 Rating: (33)	Last edited by: O_Moderator at: 4/14/2010 11:13 AM Thread remarked as Thread (not Tip)
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4/14/2010 10:41 AM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 1/16/2026 Posts: 3054 Rating: (1062)	Hello chat please check your CPU model number and grab the latestfirmware for it which will hopefully fix your problem. The 315-2AG10 for example had an issue with firmware V2.61 and 2.62 that could lead to a corruption of theRLO during online monitoring (whichwoudl neatly explainyour problem, see HERE for more on this).
	Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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