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DPV1 Acyclic Data can be read using DTMs. You can either:
1. Checkout if ABB has DTM for these relays. Or
2. Get Slot/index information for the device from ABB and make your own DTM using PROFIBUS DTM builder (licensed).
Note that you will need the Device Management extensions to 800xA for Profibus/HART. You cannot read "acyclic" data over Profibus into the controller - only the HMI.
I am facing now the similar problem - I want to read acyclic data from Diagnostics repeater. Is there any function in any library to be able to read these diagnostic logs as acyclic data ?
In Siemens solution there are system functions which allow reading these logs in PLC program.
My question is in thread named "Profibus acyclic communication with profibus slave in DP-V1".