Ethernet IP address for a CompactLogix.

Elcan · Mar 26, 2009

Hi all!
It seems that the CompactLogix processor (in particular the 1769-L32E) does not save the IP that I assigned to it. The IP address is erased when the PLC is switched off.
Am I doing something wrong?
Is there any way of making the processor IP address permanent?

Thank you!

James Mcquade · Mar 26, 2009

from my use of the micrologix 1100,
once you have set the ip address with the keyboard, you need to download a program o the plc to make the change permanent to the processor.

regards,
james

mgvol · Mar 26, 2009

I am assuming you are downloading the I.P. configuration over the serial port. If so, are you unchecking the "BootP Enabled" box in the port config? If not, it will do exactly as you are describing it; dumping the static IP each time the processor is re-booted.

dmroeder · Mar 26, 2009

mgvol said:
I am assuming you are downloading the I.P. configuration over the serial port. If so, are you unchecking the "BootP Enabled" box in the port config? If not, it will do exactly as you are describing it; dumping the static IP each time the processor is re-booted.

I second that motion.

bkottaras · Mar 26, 2009

One more vote for "BootTP" enabled causes the loss of IP settings

PawanR · Mar 26, 2009

Yes its True
you have to Disable BooTP\DHCP after setting the IP Address
you can do this through RSLinx also
Go to Properties of Controller and set the IP then Disable BooTP\DHCP

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Pawan Rathi

Elcan · Mar 27, 2009

Thank you all very much for your help!!!!

Ethernet IP address for a CompactLogix.

Elcan

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James Mcquade

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mgvol

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dmroeder

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bkottaras

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PawanR

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Elcan

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