Thermokon NOVOS 7 User Manual

Manual NOVOS und thanos EVO
Thermokon Sensortechnik GmbH Seite 51
9 Modbus Protocol
http://www.modbus.org/
9.1 Supported Control Commands
The following MODBUS control commands are supported by the device:
Description Function Code
Read Holding Register 03 (hex) 3 (dec)
Write Single Register 06 (hex) 6 (dec)
Write Multiple Register 10 (hex) 16 (dec)
9.2 Data Transmission
9.2.1 Master/Slave Protocol
One Master and one or several Slaves are connected to the serial BUS. The communication between Master and Slave is solely
controlled by the Master. Slaves are only allowed to send if they were called by the Master before. Slaves are only transmitting to a
Master, never to another Slave.
9.2.2 Data Frame
Data are transmitted on the BUS in accordance with strictly defined structures:
In general a MODBUS telegram starts with the address of a slave, followed by a control command (e.g. read register) and the data. By
means of the checksum at the end of the telegram, the BUS participants can recognize transmission errors.
Address
Control Command
Data
Checksum

Thermokon NOVOS 7 Specifications

General

Brand	Thermokon
Model	NOVOS 7
Category	Thermostat
Language	English