Areva MiCOM P921, Technical Manual

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P92x/EN CT/E11 Technical Guide
Modbus Protocol
Page 18/118 MiCOM P921-P922-P923
Address Group Description
Settings
range
Step Unit Format
Default
settings
011F Latched relays F14
Ratios
0120 Phase VT :
primary value 10 to 100000
ou
22 to 48 1 10 V F51 2000
0122 Phase VT :
secondary value 570 to 1300
ou
2200 to 4800 1 V/10 F1 1000
0123 Residual VT :
primary value 10 to 100000
ou
22 to 48 1 10 V F51 2000
0125 Residual VT : secondary
value 570 to 1300
ou 2200 to
4800 1 V/10 F1 1000
0126 Connection 0 to 3 1 F52 0
0127 Protection 0 to 1 1 F53 0
0128 Integration time (number
of cycles for calculation
of the average df/dt)
1 - 200 1 F1 1
0129 Confirmation number for
df/dt protection operation 2 or 4 2 F1 4
012A Under voltage blocking
threshold (U<Blk ) for
frequency elements
to 1300
or
200 to 4800
1
or
5
V/10 F1 50
or
200
012B to
012F Reserved
Communicati
on
0130 Baud rate 0 to 7 1 - F4 6 = 19200
bauds
0131 Parity 0 to 2 1 - F5 0 = without
0132 Reserved
0133 Number of stop bits 0 to 1 1 - F29 0 = 1 stop
bit
0134 Comm. available 0 to 1 1 - F30 1 = COM
available
0135 Date Format 0 to 1 0 F33
0136 to
013F Reserved
0140 Setting group Active setting group 1 to 2
(P922/P923)
1 (P921)
1 - F1 1
0141 Validation of
instantaneous self
resetting
0 to 1 1 F1 0
0142 Configuration of the
change of the setting
group
0 to 1 1 F60 0
0143 Configuration of Battery
and RAM error alarms 0 to 1 1 F1 0
0144 to
014F
Reserved