I am new to B&R, I have installed B&R Automation Studio 4.12 I am unable to find the hardware 8AC140.61-3 in the Hardware Catalog.
I have downloaded the V3.0 HW Upgrade (8AC140.61-3). But unable to see it in upgrades.
for Automation Studio 4 you would need to have an upgrade with version 4 available.
Unfortunately the 8AC140.61-3 is no longer supported in Automation Studio 4. Only in 3.0.90, so there is and will not be a upgrade with version 4 available.