Rockwell Automation 20-COMM-H RS485 HVAC Adapter FRN 2.xxx - Manual (Page 40)

4-8 Using Modbus RTU
20-COMM-H RS-485 HVAC Adapter User Manual
Publication 20COMM-UM009D-EN-P
Table 4.H shows the register inputs. These inputs must be used for reading
multi-bit status fields and the Feedback.
1x0010 9 Local Control Modbus Address
1x0011 10 12 11 10
1x0012 11 0 0 0 = Port 0 (TB)
0 0 1 = Port 1
0 1 0 = Port 2
0 1 1 = Port 3
1 0 0 = Port 4
1 0 1 = Port 5
1 1 0 = Port 6
1 1 1 = No Local
1x0013 12 Reference Modbus Address
1x0014 13 16 15 14 13
1x0015 14 0 0 0 0 = Ref A Auto
1x0016 15 0 0 0 1 = Ref B Auto
0 0 1 0 = Preset 2 Auto
0 0 1 1 = Preset 3 Auto
0 1 0 0 = Preset 4 Auto
0 1 0 1 = Preset 5 Auto
0 1 1 0 = Preset 6 Auto
0 1 1 1 = Preset 7 Auto
1 0 0 0 = Term Blk Manual
1 0 0 1 = DPI 1 Manual
1 0 1 0 = DPI 2 Manual
1 0 1 1 = DPI 3 Manual
1 1 0 0 = DPI 4 Manual
1 1 0 1 = DPI 5 Manual
1 1 1 0 = DPI 6 manual
1 1 1 1 = Jog Ref
Table 4.H Logic Status and Feedback: Register Inputs
Modbus
Address
Input Description Values
3x0001 Product Status Word 16-bit word. Bit definitions for PowerFlex 70/700 drives are in
Table 4.G . For other products, refer to their documentation.
3x0002 Feedback Lo Bit 0…15 of 32-bit feedback
3x0003 (1)
(1) The Feedback value is refreshed only when accessing address 3x0003. This is to maintain data integrity.
Feedback Hi Bit 16…31 of 32-bit feedback or the whole 16-bit feedback.
Table 4.G Logic Status: Discrete Inputs (to Controller from Drive) (Continued)
Modbus
Address
Logic Status Bit
PowerFlex 70/700 Example
Description
Values