Areva MiCOM P921, Technical Manual, Page: 236 / 376

P92x/EN CT/E11 Technical Guide
Modbus Protocol
Page 46/118 MiCOM P921-P922-P923
PRODUCTS
CODE DESCRIPTION
P921 P922 P923
Unsigned integer : Remote commands
bit 0 : Tripping contact delatched (RL1)
X X X
bit 1 : 1 st alarm acknowledgement X X X
bit 2 : All alarms acknowledgement X X X
bit 3 : Remote tripping (to RL1) X X X
bit 4 : Remote closing (to programmed output contacts) X X X
bit 5 : Setting group change X X
bit 6 : Average and max values reset X X
bit 7 : Reserved X X X
bit 8 : Disturbance record remote start X X
bit 9 : Reserved X X X
bit 10 : Remote Command Frequency Disturbance X
bit 11 : Reserved X X X
bit 12 : Manual event/fault acknowledgement mode X X
bit 13 : Remote acknowledgement of the oldest event
record X X
bit 14 : Remote acknowledgement of the oldest fault
record X X
F9
bit 15 : Remote acknowledgement of the "RAM error"
alarm
X X
2 characters ASCII X X X
32 - 127 = ASCII character 1
F10
32 - 127 = ASCII character 2
F11 Reserved X X X
Unsigned integer : Logic input status
bit 0 : logic input number 1 X X X
bit 1 : logic input number 2 X X X
bit 2 : logic input number 3 X X
bit 3 : logic input number 4 X X
bit 4 : logic input number 5 X X
F12
bits 5 to 15 : reserved
Unsigned integer : Logic output status
bit 0 : logic output number RL1 (tripping) X X X
bit 1 : logic output number RL2 X X X
bit 2 : logic output number RL3 X X X
bit 3 : logic output number RL4 X X X
bit 4 : logic output number RL0 (watchdog) X X X
bit 5 : logic output number RL5 X X
F13
bit 6 : logic output number RL6 X X