Danfoss DEVI DEVIreg Hotwater Installation And User Manual page 21

Installation and User Guide
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™ Hotwater controller .
LABEL
PARAMETERS & STATUS VARIABLES
SYS Main Menu > System variables
S1 MaxH1_0dec
S2 MaxH1_1dec
S3 MaxH2_0dec
S4 MaxH2_1dec
S5 MaxH3_0dec
S6 MaxH3_1dec
S7 MaxH4_0dec
S8 MaxH4_1dec
S9 AlarmH1
S10 AlarmH2
S11 AlarmH3
S12 AlarmH4
S13 InitConfigured
S14 Dis_warn
StU Service > System
FEC | Produced by Danfoss ©
DESCRIPTION
DEVIreg™ Hotwater
MIN MAX.
0 100
0 .0 100 .0
0 100
0 .0 100 .0
0 100
0 .0 100 .0
0 100
0 .0 100 .0
0 .0 90 .0
0 .0 90 .0
0 .0 90 .0
0 .0 90 .0
0 1
0 1
VALUE/
UNIT
TYPE
80
80 .0
80
80 .0
80
80 .0
80
80 .0
90 .0
90 .0
90 .0
90 .0
0
0
RW ADU
RW 3001
RW 3002
RW 3003
RW 3004
RW 3005
RW 3006
RW 3007
RW 3008
RW 3009
RW 3010
RW 3011
RW 3012
RW 3013
RW 3014
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