Areva MiCOM P921, Technical Manual

Page: 240 / 376

P92x/EN CT/E11 Technical Guide
Modbus Protocol
Page 50/118 MiCOM P921-P922-P923
PRODUCTS
CODE DESCRIPTION
P921 P922 P923
Unsigned integer : Logic input status
bit 0 : Blocking logic 1 (BLK LG1)
X X X
bit 1 : Blocking logic 2 (BLK LG2) X X X
bit 2 : Unlatched of the output contacts
(UNLATCH)
X X X
bit 3 : 52a X X X
bit 4 : 52b X X X
bit 5 : CB failure (CB fail) X X X
bit 6 : Auxiliary input 1 (AUX 1) X X X
bit 7 : Auxiliary input 2 (AUX 2) X X X
bit 8 : Change of active setting group (CHANG
SET)
X X
bit 9 : External start of the disturbance recorder
(DIST TRIG)
X X
F20
bit 10 to 15 : Reserved
Unsigned integer : Software version
X X X
10 : version 1.A
11 : version 1.B
F21
20 : version 2.A etc ...
Unsigned integer : internal logic data X X X
bit 0 : trip output contact latched (RL1)
F22
bit 1 : reserved
Unsigned integer : Self tests results X X X
bit 0 : Protection in Service X X X
bit 1 : Minor fault X X X
bit 2 : Not acknowledged event record X X
bit 3 : Time synchronisation status X X
bit 4 : Disturbance record available X X
bit 5 : Fault record available X X
bit 6 : Reserved X X X
F23
bit 7 : Reserved X X X
Unsigned integer : Status of the relay functions X X X
0 : Disabled
F24
1 : Enabled
F25 2 characters ASCII X X X