User Manual
Table Of Contents
- 1. About this document
- 2. Summary
- 3. Functions
- 3.1 Temperature control
- 3.2 Operating modes
- 3.3 Room temperature setpoint
- 3.4 Applications overview
- 3.5 Additional functions
- 3.6 Control sequences
- 3.7 Control outputs
- 3.8 Fan control
- 3.9 Multifunctional input, digital input
- 3.10 Handling faults
- 3.11 Modbus RTU mode
- 3.12 Communication objects
- 3.13 Control parameters
- 4. Handling
- 5. Connection
- 6. Mechanical design
- 7. Technical data
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Siemens RDF302 Basic documentation CE1P3079en
Smart Infrastructure 2020-12-01
3.12 Communication objects
3.12.1 Overview
Object
# and name
Thermostat
Object
# and name
1 System time 2 Room operating mode:
State
18 Outside temperature 4 Room temperature
15 Room operating mode:
Preselection
5 Room temperature:
Current
setpoint
19 Room operating mode:
Window state
12 Fan operation
(0 = Auto / 1 = Manual)
22 Key lock command 3 Fan output
17 Room temperature:
Comfort setpoint
16 Fan command value
RDF302,
RDF302/VB,
RDF302.B
20 Enable electric heater 6 Heating output
8 Electric heater output
21 Heating/cooling changeover
1)
7 Cooling output
23 Plant type
2)
10/13 X1 input (temperature / digital)
3)
11/14 X2 input (temperature / digital)
3)
24-27 Alarm descriptions
9 Fault information
28-74 Control parameters
Output communication object
Input & output communication object
Configuration & commissioning communication object
1) P01 must be set to 3, the manual heating/cooling changeover
Either using local input, X1/X2 input, or Modbus command
2)
D
ip
s
witch
position 1 to 3
must be set to OFF
-
OFF
-
OFF
3)
Not applicable to RDF302.B