Can the Modbus address be changed on the ETU586

Addressing the VL breaker with a ETU586 trip unit cannot be done via the trip unit menu, but only through the COM21.

Each trip unit and COMMOD must be addressed individually. The COM21 can be addressed with the 3UF7910-0AA0 address plug or with PowerConfig software via a lap top connected to the DB9 connector on the COM21.  You must go from one breaker to the next in order change all of the addresses, so its better to use power config which you can save the addresses rather than writing them all down when you use the address plug.