Areva MiCOM P921, Technical Manual

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Technical Guide P92x/EN CT/E11
Modbus Protocol
MiCOM P921-P922-P923 Page 55/118
PRODUCTS
CODE DESCRIPTION
P921 P922 P923
Bit 6 : instantaneous information threshold V1<
Bit 7 : instantaneous information V1<
Bit 8 : time delayed information V1<
Bit 9 : instantaneous information threshold V1<<
Bit 10 : instantaneous information V1<<
Bit 11 : time delayed information V1<< F48
Bits 12 to 15 reserved
Unsigned integer : Information generated by the
frequency protection
X X
Bit 0 : Frequency protection
Bit 1 : Instantaneous information
Bit 2 : Time delayed information of the frequency
protection
F49
Bit 3 to Bit 15: Reserved
F50 Unsigned integer: type of the voltage applied to
the logic inputs
0 : DC voltage
1 : AC voltage
X X X
F51 Unsigned long integer X X X
Unsigned integer : Voltage connection X X X
0 : Connection "3Vpn"
1 : Connection "3Vpn+Vr"
2 : Connection "2Upp+Vr"
F52
3 : Connection "3Upp+Vr"
Unsigned integer : Configuration of the voltage
protection
X X X
0 : "PROTECT P-N" = phase voltage protection
F53
1 : "PROTECT P-P" = line voltage protection
Unsigned integer : Configuration of the logical
equation
X X X
bit 0 : selection of the "A" logical equation X X X
F54
bit 1 : selection of the "B" logical equation
bit 2 : selection of the "C" logical equation
bit 3 : selection of the "D" logical equation X X X
X
X