Control logix -change cpu

It has been five years since you started this thread. Will you be upgrading the firmware to v20, or a newer version ?

What type of HMI devices or software does your system use ?

If you are just replacing a 1756-L71 with a 1756-L72 with the same firmware version, then you should have to change nothing in your HMI or your communication networks.
 
Hello Ken,

Yes Finally I have installed today and found no issues....Actually customer gave a green signal to install today after 5 years :)

Sandy
 

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