Nibe MODBUS 40 User Manual

LEK
MODBUS 40
Installatörshandbok Kommunikationsmodul
för NIBE F1145, F1155, F1245, F1255, F1345, F370,
F470, F750, SMO 40, VVM 310, VVM 320,
VVM 325, VVM 500
SE
Installer manual Communications module
for NIBE F1145, F1155, F1245, F1255, F1345, F370,
F470, F750, SMO 40, VVM 310, VVM 320,
VVM 325, VVM 500
GB
Installateurhandbuch Kommunikationsmodul
für NIBE F1145, F1155, F1245, F1255, F1345, F370,
F470, F750, SMO 40, VVM 310, VVM 320,
VVM 325, VVM 500
DE
Asentajan käsikirja Tiedonsiirtomoduuli
laitteille NIBE F1145, F1155, F1245, F1255, F1345,
F370, F470, F750, SMO 40, VVM 310, VVM 320,
VVM 325, VVM 500
FI
IHB 1446-6
031725

Nibe MODBUS 40 Specifications

General

Category	Control Unit
Communication	RS485
Communication protocol	Modbus RTU
Data bits	8
Parity	None, Even, Odd
Stop bits	1, 2
Connection type	Screw terminal
Power supply	24 V AC/DC
Protection class	IP20
Relative humidity	5% to 95% (non-condensing)
Storage temperature	-40°C to +70°C

Summary

Mounting

Installation

Connecting to the heat pump/indoor module

Details how to connect the MODBUS 40 to various NIBE heat pumps and indoor modules.

Exhaust air heat pumps connection

Details connections for exhaust air heat pumps like F370, F470, F750.

Air/water heat pumps connection

Details connections for indoor modules like VVM 310, VVM 320, VVM 325.

VVM 500 module connection

Details connection for VVM 500 indoor module.

Control module SMO 40 connection

Details connection for SMO 40 control module.

Several accessories with MODBUS 40

Connecting to Modbus-master

Settings

Communication

Read the values overview

Explains how to retrieve data, offering automatic and manual methods.

Automatic reading process

Details the process for automatically retrieving up to 20 predefined parameters using a LOG.SET file.

Manual reading process

Explains manual data retrieval, one value at a time, for the Modbus-master.

The Modbus command

Details the Modbus commands for reading and writing registers and device identification.

Create a log settings file in ModbusManager

Troubleshooting

MODBUS 40 no contact issues

Addresses issues where MODBUS 40 fails to communicate with the heat pump/indoor module.

Technical data