To read Legacy Dataset registers on a Micrologic X control unit, it is needed to purchase and install the Modbus legacy dataset Digital Module. Only after this the legacy dataset will be possible to be read on a Micrologic X, through eIFE ethernet interface.
Without this digital module the standard dataset can be used.
I can refer you to the manual via the link below:
https://tinyurl.com/22rtz7n9
Or