ABB RELAY REF542PLUS
we want to configure ABB protection relay REF542PLUS for Modbus communication?
- How can we do that?
- How can we get access to DDEF table of the Modbus and how to change it if it’s possible?
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You can find the details in " 1MRS755238 Feeder and Transformer Terminals REF 54_, RET 54_ Modbus Communication Protocol "
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