Control net card

Hi all,
I have main chassis and reduandancy one with The following specs:
1-Processor 1756-L62 rev 15.61.
2-Ethernet 1756-ENBT/A rev 4.3.
3-Controlnet 1756-CNBR/E rev 11.4
4-Redundancy module 1757-SRM rev 3.39
And we have 4 I/O card with control net card series D
My question if any controlnet card failure,can i replace it by controlnet card with series E and what is the steps of this replacement(need schdualing or not)

Can anyone help me and please verify his answer with documents

Plz help me

I had compatability issues in the past of mixing controlnet rev. D with E series modules. I think making sure the firmware are upgrade to the lastest revision will help resolve any issues.

Here is a link to AB literature that might help you.
http://literature.rockwellautomation.com/idc/groups/literature/documents/rn/1756-rn668_-en-e.pdf

Not sure if the link is for public access though.

Primary and secondary chassis must have the same card with the same FW revision
I/O chassis can have any card
You do not need to schedule if you replace CNET adapter
But you must follow replacement procedure described in the knowledgbase