Name: Siemens RDG20 KN Series
Brand: Siemens
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Functions

KNX communications (RDG2..KN)

124 | 186

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If the device is set as Subordinate, parameter P259 value needs to be set accordingly.

Select Applications ➙ Plant operation ➙ Settings ➙ Communication, then set parameters P901 and

P902.

Table of Contents2
About this Document5
Revision History5
Reference Documents6
Before You Start7
Trademarks7
Copyright7
Quality Assurance7
Document User/Request to the Reader8
Target Audience, Prerequisites8
Glossary8
Overview9
Types9
Functions10
Accessories14
Equipment Combinations14
Recommended RDG Actuators and 6-Port Valves Combinations18
Integration Via KNX Bus19
Notes21
Mounting and Installation21
Commissioning22
Operation24
Remote Operation26
Disposal27
Cyber Security Disclaimer27
Functions28
Temperature Control28
Operating Modes29
Different Ways to Influence Operating Mode30
Communication Examples36
Room Temperature Setpoints38
Description38
Setting and Adjusting Setpoints40
Application Overview43
Applications for Fan Coil Systems44
Applications for Universal Systems45
Application for Heat Pump Systems46
Power Supply Selection for RDG2047
Additional Functions48
Sensors and Changeover Functions49
Presence Detector50
Output Functions52
Monitoring and Limiting Functions54
User Operation / Indication57
Humidity (RDG260
Scheduler64
M/S, Manager/Subordinate (RDG265
Preventive Operation69
NFC Communication69
IAQ - CO2 Monitoring and Control (RDG269
Power Reserve Clock (RDG276
Control Sequences77
Sequence Overview (Setting Via P001)77
Application Mode78
2-Pipe Fan Coil Unit80
2-Pipe Fan Coil Unit with Electric Heater81
2-Pipe Fan Coil Unit with Radiator or Floor Heating83
2-Stage on 2-Pipe/4-Pipe Heating and Cooling85
4-Pipe Fan Coil Unit90
4-Pipe Fan Coil Unit with Electric Heater95
Chilled/Heated Ceiling and Radiator Applications97
Compressor Applications98
Applications with External AQR Sensor or QMX Room Operator Unit (RDG299
Setpoints and Sequences99
Control Outputs101
Overview101
Control Output Configuration for 6-Port Valve (P201)105
Control Output Configuration (Setting Via DIP Switches 7/8 or Tool, and P201/P203/P204/P205)106
Fan Control108
Multifunctional Input, Digital Input115
Handling System Faults117
KNX Communications (RDG2118
S-Mode118
M/S, Manager/Subordinate Configuration in KNX S-Mode118
LTE-Mode121
Zone Addressing in LTE-Mode (with Synco)122
M/S, Manager/Subordinate Configuration in LTE-Mode123
Example of Heating and Cooling Demand Zones126
Send Heartbeat and Receive Timeout126
Startup127
Heating and Cooling Demand127
Fault and Alarms Function on KNX128
Communication Objects (RDG2129
Overview129
Description of Communication Objects131
Communication Objects (LTE-Mode) (RDG2137
Control Parameters138
Parameter Setting Via Local HMI138
Setting/Downloading Parameter Via Tool (RDG2139
Service Level Parameters140
Expert Level Parameters with Diagnostics and Test142
Supported Tools148
Ets148
Setting Parameters in ETS149
ACS Tool151
Setting Parameters in ACS151
Operation and Monitoring with ACS152
Operation and Monitoring with OZW772157
PCT Go - Smartphone App158
Commissioning Parameter Via PCT Go159
Read Live Data Via PCT Go160
Connection161
Connection Terminals161
Connection Diagrams163
IAQ - CO2 Connection Diagrams (RDG2167
Application Examples167
Humidity Control167
Relay Functions170
Swap Function And/Or Fan in the 2Nd Stage172
IAQ -CO2 Control (RDG2175
Technical Data177
Dimensions183
Index184

Brand	Siemens
Model	RDG20 KN Series
Category	Thermostat
Language	English

Siemens RDG20 KN Series User Manual

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