Redundancy new module in chassis

[mazacha78]

Good day Gents,
I'm thinking about adding the new EN2TR modules into the Redundant chassis. My system is 1756-L74, ver.20.55.
Is possible to be executed safely without interruption to the running system?
Or, does it have to be done in Program mode?

Looking for your valid answers.

 

[jstolaruk]

A valid answer would be "No". Another answer would be "Maybe" or "Not sure".

Personally, I would plan to have to download the hardware change to both systems.

 

[mazacha78]

Download is not an option. Operation will never agree for shutdown.

Anyway. Best option is to set up test bench I guess.