Setting and adjusting setpoints - Basic Documentation - RDF302 - RDF302.B - RDF302/VB

Semi-flush mount room thermostats with RS485 Modbus communications RDF302, RDF302.B, RDF302/VB

Product Family
Product Group
Thermostats (temperature controller with sensor)
Content Language
English
Content Type
Technical Documentation > Basic Documentation
Product Version
Status
Valid
Date
2022-06-17
Document No
CE1P3079en
Download ID
A6V10350339
Stock No.
S55770-T238
S55770-T416
S55770-T428
Product No.
RDF302
RDF302.B
RDF302/VB
Access level
Internet
File Type
html

Room temperature setpoints can be

  • set during commissioning

  • adjusted during runtime

Modbus
Room temperature: Comfort setpoint

The source can be via

  • local HMI

  • a Modbus commissioning tool

  • a Modbus master unit

The thermostat stores the setpoints

  • in EEPROM in the form of parameters

The table below shows the interrelations:

Graphical user interface Description automatically generated with low confidence

Modbus
Room temperature: Current setpoint

The current setpoint (used by the thermostat for temperature control) is available on the Modbus for use in the central control unit.

General notes:

  • Changes via the local HMI or via tool have the same priority (last always wins)

  • Setting the Comfort basic setpoint will reset the runtime Comfort setpoint to the basic setpoint

Notes on setpoint adjustment

  • The resulting (current) setpoint heating and cooling is limited by the Protection setpoint; if Protection setpoint is OFF, then minimum 5 °C and maximum 40 °C are used

  • The resulting setpoints for cooling and heating of the same operating mode have a minimum distance of 0.5 K between them