Data Sheet for Product

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Siemens PXC3.E... Room automation stations CM1N9203en_08
Smart Infrastructure 2020-10-30
Product documentation
· Engineering and commissioning: See ABT online help.
· Planning manual Desigo Room automation, CM111043.
· TX-I/O planning and installation manual, CM110562.
· Application Guide for IP Networks in Building Automation Systems, CM110668.
· Desigo Technical principles CM110664, chapters 18 and 26.
Engineering
· Each device has a unique serial number for commissioning support.
It is also located on the removable barcode label: See the ABT online help for
the associated workflow.
· Each device has a unique MAC address.
· Each device with KNX PL-Link has a unique KNX ID.
· Cable length, topology, etc.: See planning manual Desigo Room automation,
CM111043.
Caution!
· The cable insulation must always comply with the present rated voltage.
· When the supply voltage of the room automation station is transited to external
devices, the cable cross section must always correspond to the rated current
of the safety circuit breaking device.
Observe local regulations in any case.
Mounting
The room automation stations can be snapped onto a standard mounting rail.
The automation station has pluggable screw terminal blocks to connect the AC 24
V supply, the AC 24 V outlets, the KNX PL-Link, and the DALI bus.
The TX-I/O modules are snapped onto the mounting rail on the right side of the
room automation station. The island bus is created automatically in this process.
Recommended
With restrictions *)
· Wall, horizontal from left to right
or from right to left
· Overhead.
· On a horizontal surface.
· Wall, vertical from bottom to top
or from top to bottom.
Ambient temperature -5...50 °C /
23...122 °F
Ambient temperature -5...45 °C /
23...1
13
°F
*)
*) 50 °C / 122 °F is admissible if the bus supplies are used with reduced load:
KNX PL-Link 105 mA, DALI 85 mA and island bus 400 mA.
PXC3.E16A…: 50 °C / 122 °F is admissible without restrictions.
You must ensure, however, that sufficient ventilation is available to maintain
the permissible ambient temperature for the devices (inside the cabinet /
installation box).
Outside, the temperature must be 10 K lower.
Mounting position
Note