P54x/EN OP/La4 Operation
(OP) 5-114
MiCOM P543, P544, P545 & P546
OP
Relay A Relay B
Address Group 10 10-A 10-B
Address Group 11 11-A 11-B
Address Group 12 12-A 12-B
Address Group 13 13-A 13-B
Address Group 14 14-A 14-B
Address Group 15 15-A 15-B
Address Group 16 16-A 16-B
Address Group 17 17-A 17-B
Address Group 18 18-A 18-B
Address Group 19 19-A 19-B
Address Group 20 20-A 20-B
For two relays to communicate with one another, their addresses have to be in the same
address group. One relay should be assigned with address A and the other with address B.
For example, if the group 1 address is used, the one relay should be given the address 1-A,
and the other relay should be given the address 1-B.
The relay with address 1-A will only accept messages with the 1-A address and will send out
messages carrying address 1-B. The relay assigned with address 1-B will only accept
messages with address 1-B and will send out messages carrying address 1-A.
The groups of addresses available when 3 Terminal scheme is selected are as follows:
Relay A Relay B Relay C
Address Group 1 1-A 1-B 1-C
Address Group 2 2-A 2-B 2-C
Address Group 3 3-A 3-B 3-C
Address Group 4 4-A 4-B 4-C
Address Group 5 5-A 5-B 5-C
Address Group 6 6-A 6-B 6-C
Address Group 7 7-A 7-B 7-C
Address Group 8 8-A 8-B 8-C
Address Group 9 9-A 9-B 9-C
Address Group 10 10-A 10-B 10-C
Address Group 11 11-A 11-B 11-C
Address Group 12 12-A 12-B 12-C
Address Group 13 13-A 13-B 13-C
Address Group 14 14-A 14-B 14-C
Address Group 15 15-A 15-B 15-C
Address Group 16 16-A 16-B 16-C
Address Group 17 17-A 17-B 17-C
Address Group 18 18-A 18-B 18-C
Address Group 19 19-A 19-B 19-C
Address Group 20 20-A 20-B 20-C
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