Installation and User Guide
DEVIreg™ Multi
FEC | Produced by Danfoss ©
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Appendix A. BMS and RS-485 interface
The controller has a built-in Modbus data transmission system and can be connected to
the BMS central unit .
A1. Communication settings
Default communication settings:
•
Serial address: 1 .
•
Serial baud rate (Transmission speed): 19200 .
•
Serial setting: 8N1 .
A2. RS-485 specifications
MCX hardware network specifications (wiring, topology, etc .) can be found in Danfoss document:
User manual. Meet any HVAC requirement with the reliability of MCX network.
This document provides general indications for the setup of RS-485 networks .
A3. Modbus parameters and variables
Modbus parameters and variables for
DEVIreg™ Multi
controller .
LABEL
DESCRIPTION
MIN
MAX.
VALUE/TYPE
UNIT
RW
ADU
PARAMETERS & STATUS VARIABLES
Q10
Activate channels > Activate #1
P16
Activate #1
0
1
0 – NO
Enum 2
RW
3001
W10
Activate channels > Activate #2
O16
Activate #2
0
1
1 – YES
Enum 2
RW
3002
R10
Activate channels > Activate #3
I16
Activate #3
0
1
0 – NO
Enum 2
RW
3003
G10
Activate channels > Activate #4
U16
Activate #4
0
1
0 – NO
Enum 2
RW
3004
H10
Activate channels > Activate #5
Y16
Activate #5
0
1
0 – NO
Enum 2
RW
3005
Z10
Activate channels > Activate #6
T16
Activate #6
0
1
0 – NO
Enum 2
RW
3006
X10
Activate channels > Activate #7
V16
Activate #7
0
1
0 – NO
Enum 2
RW
3007
