Using datalinks with modbus, Modbus datalinks out: a…d, Using datalinks with modbus -3 – Rockwell Automation 20-COMM-H RS485 HVAC Adapter FRN 2.xxx User Manual
Page 69
Using Datalinks with All Protocols
7-3
20-COMM-H RS-485 HVAC Adapter User Manual
Publication 20COMM-UM009D-EN-P
Using Datalinks with Modbus
This section presents information about using Datalinks with Modbus
networks. For information about using Datalinks for Metasys N2 networks
or Siemens P1 FLN networks, refer to the
Using Datalinks with Metasys N2
Using Datalinks with Siemens P1 FLN
sections in this chapter.
Modbus Datalinks Out: A…D
Table 7.A Modbus Datalinks Out - A1, A2
Modbus
Address
Data Direction
Parameter
Description
16-Bit Datalink
32-Bit Datalink
3x0012
Register Input
Datalink A1 Out
Not used
LSW of 32-bit
3x0013
(1)
(1)
A read access to address 3x0013 initiates a refresh of Datalink A1 value before reading.
Register Input
Datalink A1 Out
16-bit value
MSW of 32-bit
3x0014
Register Input
Datalink A2 Out
Not used
LSW of 32-bit
3x0015
(2)
(2)
A read access to address 3x0015 initiates a refresh of Datalink A2 value before reading.
Register Input
Datalink A2 Out
16-bit value
MSW of 32-bit
Table 7.B Modbus Datalinks Out - B1, B2
Modbus
Address
Data Direction
Parameter
Description
16-Bit Datalink
32-Bit Datalink
3x0016
Register Input
Datalink B1 Out
Not used
LSW of 32-bit
3x0017
(1)
(1)
A read access to address 3x0017 initiates a refresh of Datalink B1 value before reading.
Register Input
Datalink B1 Out
16-bit value
MSW of 32-bit
3x0018
Register Input
Datalink B2 Out
Not used
LSW of 32-bit
3x0019
(2)
(2)
A read access to address 3x0019 initiates a refresh of Datalink B2 value before reading.
Register Input
Datalink B2 Out
16-bit value
MSW of 32-bit
Table 7.C Modbus Datalinks Out - C1, C2
Modbus
Address
Data Direction
Parameter
Description
16-Bit Datalink
32-Bit Datalink
3x0020
Register Input
Datalink C1 Out
Not used
LSW of 32-bit
3x0021
(1)
(1)
A read access to address 3x0021 initiates a refresh of Datalink C1 value before reading.
Register Input
Datalink C1 Out
16-bit value
MSW of 32-bit
3x0022
Register Input
Datalink C2 Out
Not used
LSW of 32-bit
3x0023
(2)
(2)
A read access to address 3x0023 initiates a refresh of Datalink C2 value before reading.
Register Input
Datalink C2 Out
16-bit value
MSW of 32-bit
Table 7.D Modbus Datalinks Out - D1, D2
Modbus
Address
Data Direction
Parameter
Description
16-Bit Datalink
32-Bit Datalink
3x0024
Register Input
Datalink D1 Out
Not used
LSW of 32-bit
3x0025
(1)
(1)
A read access to address 3x0025 initiates a refresh of Datalink D1 value before reading.
Register Input
Datalink D1 Out
16-bit value
MSW of 32-bit
3x0026
Register Input
Datalink D2 Out
Not used
LSW of 32-bit
3x0027
(2)
(2)
A read access to address 3x0027 initiates a refresh of Datalink D2 value before reading.
Register Input
Datalink D2 Out
16-bit value
MSW of 32-bit