Allen-Bradley 20-COMM-M Modbus/TCP Adapter User Manual page 41

Table 4.D Logic Command Registers (to Drive from Controller)
Register Logic Command PowerFlex 70/700 Example
Address Bit
Description
1 0 Stop
2 1 Start
3 2 Jog
4 3 Clear Faults
5 4 Direction
6 5
7 6 Local Control
8 7 MOP Increment
9 8 Accel Rate
10 9
11 10 Decel Rate
12 11
13 12 Reference Select Register Address
14 13
15 14
16 15 MOP Decrement 0 = Not Decrement
(1)
A "0 = Not Stop" condition (logic 0) must first be present before a "1 = Start" condition will start the drive.
(2)
To perform this command, the value must change from "0" to "1."
Table 4.E shows the Logic Command register used for writing 16-bit
commands or multiple decimal values.
Table 4.E Logic Command Register
Register Description
Address
10001 Logic Command
To set the Reference, you must write the decimal values to register
addresses 10003 and 10004
Using Modbus/TCP Function Codes
Values
0 = Not Stop
1 = Stop
(1) (2)
0 = Not Start
1 = Start
0 = Not Jog (Par. 100)
1 = Jog
(2)
0 = Not Clear Faults
1 = Clear Faults
Register Address
6 5
0 0 = No Command
0 1 = Forward Command
1 0 = Reverse Command
1 1 = Hold Direction Control
0 = No Local Control
1 = Local Control
0 = Not Increment
1 = Increment
Register Address
10 09
0 0 = No Command
0 1 = Accel Rate 1 Command (Par. 140)
1 0 = Accel Rate 2 Command (Par. 141)
1 1 = Hold Accel Rate
Register Address
12 11
0 0 = No Command
0 1 = Decel Rate 1 Command (Par. 142)
1 0 = Decel Rate 2 Command (Par. 143)
1 1 = Hold Decel Rate
15 14 13
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
1 = Decrement
Values
16-bit word. Bit definitions for PowerFlex 70/700 drives are in
Table 4.D. For other products, refer to their documentation.
(Table 4.F) using Function Code 16 or 23.
20-COMM-M Modbus/TCP Adapter User Manual
4-5
= No Command
= Ref A Select (Par. 90)
= Ref B Select (Par. 93)
= Preset 3 (Par. 103)
= Preset 4 (Par. 104)
= Preset 5 (Par. 105)
= Preset 6 (Par. 106)
= Preset 7 (Par. 107)
Publication 20COMM-UM014C-EN-P