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Problem with redundancy system

Created by: karthikeyN at: 2/20/2022 5:15 AM (2 Replies)

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2/20/2022 5:15 AM	Rate (0)
karthikeyN Advanced Member Joined: 12/20/2011 Last visit: 11/7/2024 Posts: 4 Rating: (0)	we are having a problem with our redundancy system; is an 416-5H system, Master CPU gone to RUN mode and standby CPU went to stop mode. we tried to stop the whole system and restart everything again, and even reset the memory, but still same problem Both CPU Put in Run mode master CPU gone Run mode but Standby after few minutes Run enabled again goes to stop mode For This Problem I have tried This , 1. I reseted memory through hardware as well as through software. 2. Download individually Hardware to both time in both CPUs. 3. Both CPU Put in Run mode master CPU gone Run mode but Standby after few minutes Run enabled again goes to stop mode 3. start through warm, again but still same issue 1.CPU Firmware vesrion is V6.0.9 Boot loader version is V6.0.9 Is this may be a problem? 2.I have seen on line the program of both CPU stanby By CPU all the program saved EPROM Main CPU All the program saved RAM 3.During erase the program on line on stand by CPU IT showing below message Name offline online status Firware version V6.0 v6.0.9 ok station name SIMATIC H STATION(1) SIMATIC H STATION(1) OK Module Nmee CPU 416-5 H PN/DP CPU 416-5 H PN/DP(1) YeLLOW COLOUR ! Please I need your export advise ------------------------------------------------------------------------------------------ Split from S7-400 CPU 416-5H PN/DP EXT FAULT..
	Last edited by: Jen_Moderator at: 02/21/2022 11:57:23 New subject after splitting
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3/5/2022 3:50 AM	Rate (0)
fernando13 Bronze Member Joined: 11/9/2017 Last visit: 10/4/2024 Posts: 155 Rating: (10)	Hi KarthikeyN any fault led show in standby PLC? try to MRES all CPU then turn off both, after that turn on only master wait until stop led solid then download the new config, after that run the CPU then turn on the standby CPU it will automatically sync to master
	If I could help you, be so kind and rate my contribution. :) Best regards Fernando
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3/8/2022 2:21 PM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating: (1365)	I have seen on line the program of both CPU stanby By CPU all the program saved EPROM Main CPU All the program saved RAM Memories and all accessories should be identical, in this case CPUs will not synchronize.
	Demo Channel on Youtube
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This contribution was helpful to 1 thankful Users dchartier