Issue with micrlogix 1400 - PLCS.net

rejoe.koshy · January 3rd, 2018, 03:59 AM

Hey guys,
I am facing a weird issue with a micrologix 1400 series PLC installed in my facility.The IP address of the controller is set to default abruptly & as a result its communication with HMIs collapses.The PLC which is otherwise healthy runs for few weeks before IP settings are wiped out & I have to reenter the address for it to work..

What could be the issue? Could this be a hardware fault?

tarik1978 · January 3rd, 2018, 04:12 AM

It could be that DHCP or BOOT UP are still enabled see bellow thread:
http://www.plctalk.net/qanda/showthread.php?t=94483

rejoe.koshy · January 3rd, 2018, 05:03 AM

Quote:

Originally Posted by tarik1978

It could be that DHCP or BOOT UP are still enabled see bellow thread:
http://www.plctalk.net/qanda/showthread.php?t=94483

I have set the IP using the keypad , so I guess BOOTP might not be the cause.Futhermore, BOOTP issues surface with power recycling , but this problem occurs abruptly.

Saffa · January 3rd, 2018, 12:59 PM

can you post a screenshot of your Ethernet channel configuration please?

January 3rd, 2018, 03:59 AM	#1
rejoe.koshy Member Join Date: Dec 2011 Location: kolkata Posts: 122	Issue with micrlogix 1400 Hey guys, I am facing a weird issue with a micrologix 1400 series PLC installed in my facility.The IP address of the controller is set to default abruptly & as a result its communication with HMIs collapses.The PLC which is otherwise healthy runs for few weeks before IP settings are wiped out & I have to reenter the address for it to work.. What could be the issue? Could this be a hardware fault?

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January 3rd, 2018, 04:12 AM	#2
tarik1978 Member Join Date: Mar 2010 Location: casablanca Posts: 271	It could be that DHCP or BOOT UP are still enabled see bellow thread: http://www.plctalk.net/qanda/showthread.php?t=94483

January 3rd, 2018, 12:59 PM	#4
Saffa Member Join Date: Feb 2012 Location: Bay of Plenty Posts: 817	can you post a screenshot of your Ethernet channel configuration please?

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