Siemens RDF870KN Series Manual

Touch Screen Flush-Mounted PM2.5 & IAQ Controllers With
KNX or RS485 Modbus
RDF870KN.. and RDF870MB..
PM2.5 control, CO2 control, or both and ventilation applications
RDF870KN (KNX) and RDF870MB (Modbus) controllers:
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RDF870MB can be configured as a room unit via DIP switches and it provides the following
additional functions:
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Mounting on recessed square 86 mm box or round 60 mm with 60 mm fixing centers and min-
imum 40 mm depth
A6V11439454_en--_d
2021-03-31
AC 230 V operating voltage, large, backlit display
Display and setpoint adjustment for PM2.5 and CO
Display of room temperature, outside temperature, VOC (volatile organic compound) and
r.h. (relative humidity)
Supports 1-/3-/4-speed On/Off fan or DC fan output
Two multifunctional inputs for external passive and DC 0...10 V sensors
Operating modes: Comfort, Economy and Protection
KNX S-Mode for RDF870KN
KNX commissioning via ETS or local control parameters
KNX integration into Desigo via group (ETS) or individual addressing
KNX integration into third-party system via group addressing (ETS)
RS485 Modbus RTU slave mode for RDF870MB
Modbus commissioning via third-party tool, e.g. Modbus scan, Modbus poll, etc.
Setpoint adjustment and display for room temperature, VOC, RH and display of outside
temperature
Four external outputs via bus and controlled by a master controller
control
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