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Siemens
Desigo TRA Engineering, mounting and installation
CM111043en_09
Building Technologies
Installation – overview
2016-02-22
4
Installation
–
overview
4.1 PXC3...
The illustration is a diagram of a PXC3 room automation station in an installation
box / panel, the TX-I/O modules, connections to the field devices as well as bus
connections (Ethernet, KNX, DALI)..
Element
Description
Details see section / document
T1
Transformer AC 24 V
transformer sizing
AC 24 V
Wiring of power lines and island bus
N1
PXC3... room automation station.
[8]
U1, U3
TXS1.EF10Bus connection modules
[8]
U2
I/O row, supplied by the PXC3...
[8]
U4
I/O row supplied by a TXS1.EF10Bus connection
module
[8]
U5
TXA1.IBE Island bus expansion module (optional)
[8]
--
Electrical properties of inputs and outputs
--
Power supply for field devices
--
Wiring of field devices
Ethernet
KNX PL-Link
DALI
Island bus
AC 24 V
DALI
KNX PL-Link
M
Ethernet
Installation box /
cabinet