ABB REF 542plus - 17 Terminology

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17. Terminology
Term Description
Ethernet Physical communication network to transfer Internet data of
the REF 542plus to the PC and back.
Modbus By extension, communication board implementing the
Modbus protocol for REF 542plus.
Multifunction Protection and Switchgear Control Unit
Operator's manual
REF 542plusREF 542plus
1MRS755869