User Manual

3
Siemens CM1N9204en
Smart Infrastructure 2020-03-17
LED indication
LED Color Activity Function
RUN Green Steady ON Device is ready for operation
Steady OFF Device is not powered
Regular flashing Start-up or the program is stopped
Red Steady OFF OK
Steady ON Program error
Communications error (KNX PL-Link)
Hardware fault
Rapid flashing Wrong or corrupt software
No application loaded
Blinking per wink command Physical device identification
2s
1s
5 Hz 5 Hz
2s
1s
Service button (SVC)
Physical identification on the network.
Technical design
Power supply
The power supply provides controlled voltages to the actuators. The room automation
stations also supply AC 24 V field supply. The supply is located in the device to simplify
wiring and diagnostics.
The processor controls the power supply. This ensures clean conditions for field devices
connected to the I/Os during startup, shutdown, and undervoltage.
Bus power supply
The room automation station includes the bus power for KNX PL-Link. The bus power is
switched on by default, but can be switched off via web interface or configuration in the
Automation Building Tool (ABT).
The internal KNX PL-Link supply cannot be operated parallel to external power supplies. The
internal KNX PL-Link power must be switched off during the engineering phase for external
power. This is typically the case if the 50 mA from the internal supply is not enough to supply
all devices connected on the KNX PL-Link bus.
Type summary
The devices are supplied without terminal covers. The terminal covers must be ordered
separately. See Accessories.
Individual packages
Type Stock number Applications Inputs Outputs
DXR2.E09-101A S55376-C110 Fan coil, radiant ceiling, radiator,
4 luminaires & 2 blinds
1 DI, 2 UI 3 relays, 3 AO
DXR2.E09T-101A S55376-C111 4 triac, 1 AO,
1 relay
DXR2.E10-101A S55376-C109 4 triac, 3
relays