206 Rockwell Automation Publication 520-UM001K-EN-E - August 2021
Appendix C RS485 (DSI) Protocol
Velocity Bit Definitions
Comm Logic Command – C122 = 0 “Velocity”
Address (Decimal) Bit(s) Description
2000H (8192)
0 1 = Stop, 0 = Not Stop
1 1 = Start, 0 = Not Start
2 1 = Jog, 0 = No Jog
3 1 = Clear Faults, 0 = Not Clear Faults
5, 4
00 = No Command
01 = Forward Command
10 = Reverse Command
11 = No Command
6 1 = Force Keypad Control, 0 = Not Force Keypad Control
7 1 = MOP Increment, 0 = Not Increment
9, 8
00 = No Command
01 = Accel Rate 1 Enable
10 = Accel Rate 2 Enable
11 = Hold Accel Rate Selected
11, 10
00 = No Command
01 = Decel Rate 1 Enable
10 = Decel Rate 2 Enable
11 = Hold Decel Rate Selected
14, 13, 12
000 = No Command
001 = Freq. Source = P047 [Speed Reference1]
010 = Freq. Source = P049 [Speed Reference2]
011 = Freq. Source = P051 [Speed Reference3]
100 = A410 [Preset Freq 0]
101 = A411 [Preset Freq 1]
110 = A412 [Preset Freq 2]
111 = A413 [Preset Freq 3]
15 1 = MOP Decrement, 0 = Not Decrement
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