9 203 9203mmP01 s Desigo™ TRA Room automation stations • • • • • • • • • • CM1N9203en_07 2019.05-15 PXC3.E... Modular, programmable room automation stations for HVAC, lighting, and shading. BACnet / IP communications; BACnet profile ASC (BTL label). Optional island bus to connect TX-I/O modules with any data point mix (including bus supply). Optional KNX PL-Link peripheral bus to connect sensors, actors and room units (including bus supply).
Use Starting with Desigo V5, PXC3 series room automation stations with Total Room Automation applications (TRA) can be used for buildings with more sophisticated requirements on functionality and flexibility. TRA is used when several disciplines (HVAC, lighting, shading) are combined to form one total solution and when total flexibility is required. TRA is perfect for solutions optimizing energy (class A) without loss of comfort.
Communications • The room automation stations have a 2-port Ethernet switch to support for lowcost cabling via line topology. • A USB Device port is available for service and commissioning. • TX-I/O modules connected directly to the PXC3 allow for direct connection of field devices. This offers maximum flexibility. • The KNX PL-Link peripheral bus supports room operator units, sensors, and actuating devices.
Mechanical design The compact build allows for mounting the devices on a standard mounting rail.
The internal bus supplies can be reinforced by external power supply modules. An additional TXS1.12F10 supply module must be switched on and off at the same time as the room automation station. Otherwise, DC 24 V island bus supply may sag, resulting in alarms.
Engineering Caution! • 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 installation manual Desigo TRA, CM111043. • The cable insulation must always comply with the present rated voltage.
Technical data Operating voltage (24V~, ⊥ ) Safety extra-low voltage SELV or protection by extra-low voltage PELV Half-wave load AC 24 V -15 % / +20% 48...63 Hz Symmetric Operating data Processor Texas Instruments AM3352, 600 MHz Atmel AT91SAM9G20, 400 MHz 512 MB SDRAM (DDR3) 512 MB NAND Flash 128 MB SDRAM (SDR) 256 MB NAND Flash Memory PXC3.E...-100A (V6) PXC3.E7... (V5.1) PXC3.E...-100A (V6) PXC3.E7... Power consumption (V5.1) Max.
Island bus interface Communications DC output Island bus connector on side KNX PL-Link interface Communications Bus power supply Interface type Nominal voltage Max. current Parallel switchable with 3 supply modules TXS1.12F10 Short-circuit proof, overload-proof Protection Protection against faulty wiring with AC 24 V Interface type Transceiver Baud rate Nominal voltage Max. supply Note: for devices with higher power requirement, use the output AC 24 V 2 A, see above.
Assignment as per EN 60730 Housing protection standard Ambient conditions Standards, directives and approvals Operation of automatic controller Degree of pollution Construction type Protection type as per EN 60529 Front parts in the DIN section Terminal part Operation Climatic conditions Temperature (see page 6) Humidity Mechanical conditions Transport Climatic conditions Temperature Humidity Mechanical conditions Product standard Product family standard General requirements for Home and Building Electron
Connection terminals and interfaces 8 24 V~ 8 24 V F 12 Service DALI (Without labels) KNX PL-Link connection Output AC 24 V for externally supplied devices with KNX PL-Link (Short-circuit proof with PTC resistor) ~, ⊥ Operating voltage AC 24 V ~, ⊥, 6 A Output AC 24 V to supply other PXC3...
Basic circuit diagram (connections AC 24 V, fusing) 1 + 2 4 3 ~ KNX 2) 24V/2A 5 ~ 6 24V~ 7 ~ 8 24V~ PTC KNX Island bus CS T 10A 9 1), 2) 3) 10 11 + DALI 3) 12 Island Bus 1) 9203z05_01 DALI V~ Not with PXC3.E16A-100A Only with PXC3.E....A... types 11 / 12 Siemens Building Technologies PXC3.E... Room automation stations CM1N9203en_07 2019.
Dimensions 9203M01 All dimensions in mm Published by: Siemens Switzerland Ltd. Building Technologies Division International Headquarters Gubelstrasse 22 6301 Zug Switzerland Tel. +41 41-724 24 24 www.siemens.com/buildingtechnologies © Siemens Switzerland Ltd 2012 Delivery and technical specifications subject to change 12 / 12 Siemens Building Technologies PXC3.E... Room automation stations CM1N9203en_07 2019.
