6/11/2010 8:47 PM | |
Posts: 84 Rating: (1) |
Hi I have connected 80 slave devices to three cp342-5 in one rack with cpu 315 2-dp. I can read data from each slave but sometimes for instance after 2 months suddenly PLC write some data to slave without operator permit, how it is possible, is it noise?and suddenly our slave become out of service by this interrupt. It is veryinterestingour monitoring system can not sense this changes, because we see everything goes well and we have no alarm in monitoring system, but our devices has been damaged by thisinterrupt. I am so confused about this problem please help me Splitted from DP slave not available. |
Last edited by: O_Moderator at: 6/14/2010 9:43 AMnew subject after splitting |
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