User Manual

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Siemens PXR11, PXR12 – System controllers CA1N9235en_03
Building Technologies 31 Jan 2009
Disposal
The controller includes electrical and electronic components and must not be
disposed of as domestic waste.
Current local legislation must be observed.
Technical data
General device data
Working voltage AC 24 V ± 20 %
Extra-low voltage PELV HD 384
Frequency 50/60 Hz
Power consumption Max. 6 VA
Internal fuse Thermal, self-resetting
Operating data Processor Motorola 68000
Memory space FLASH 7 MByte
(inkl Memory Extension Board) RAM 4Mbyte
Data backup in case of power failure
Configuration parameters (Flash) > 10 years
Plug-in screw terminals Power supply and signals Stranded or solid conductors
0.25 to 2.5 mm
2
or 2 x 1.5 mm
2
BACnet over LonTalk connection Interface type TP/FT-10
(Blocks 2 and 3) Transceiver FTT-10A
Bit rate 78 kBit/s
Protocol BACnet over LonTalk
RJ45 connector wiring
Connecting cable for PXM10 / PXM20 /
DESIGO TOOLSET
Max. 3m
Wiring, plug-in screw terminal
Cable type 2-core, twisted pair, unscreened
Cable lengths Max. 450m in free topology
Max. 900m in serial topology
COM2 port Interface type RS232
Baud rate
38400
Data bits
8
Stop bits
1
Parity None
Flow control Xon/Xoff
Wiring
Cable type 9-core standard screened cable
Cable length Max. 3 m