Can I use the controller PM862R in the System 800xA 5.1
I have a system 800xA version 5.1 that using two controller, model: PM861R redundancy.
Now, I want to extend my system with a new redundant controller. Unfortunately, the model PM861R have been classic. So I think I should use another controller for my system, such as PM862R.
I know that the model PM862R belong to System 800xA version 6.x, can I downgrade its firmware to use for the system version 5.1?
Per the 800xA Product Life Cycle Announcement Document for AC 800M - PM861A, PM864A (3BSE092443 - Page 2), support for the PM862 controller was available in with 800xA . 6.0.0-1, 800xA . 6.0.2 and later.
So, in response to your question, none of the 800xA version 5.1 releases included support for the PM862 controller (PM861K01/PM862K02).
I have attached document: 3BSE092443_A_en_AC_800M_-_PM861A__PM864A_-_Life_Cycle_announcement_ for reference purposes. Refer to the table on page 2 of the document.
Please find the attached Image for your reference with respective to PM862 Redundant controller, as this controller is compatible from 6.0.0-1 onwards by downgrade of Firmware for 800v5.1 is not possible because firmware for PM862 is not available with v5.1 in other way you can go with PM864 or PM866. Source: https://www.800xahardwareselector.com/product/pm862k02