Siemens Desigo PXC4.M16 User manual

A6V11937668_en--_b

Smart Infrastructure

2020-07-10

Desigo™

Automation station

PXC4.M16

For the control of primary plants

●Compact automation station for HVAC and building control systems,

freely programmable using graphical programming interface

●Communication BACnet MS/TP

●16 inputs/outputs: 12 universal inputs/outputs, 4 relay outputs

Extendable to 40 inputs/outputs via I/O modules TXM…

●Integration of Modbus data points via RTU

●WLAN interface for engineering and commissioning

●Operating voltage AC 24 V

●Mounted on standard rails or on the wall

●Plug-in screw terminal blocks

Siemens Schweiz AG

A6V11937668_en--_b

Smart Infrastructure

2020-07-10

Functions

Automation station for HVAC and building control systems.

●System functions (alarming, scheduling, trending, access protection with individually

definable user profiles and categories)

●Freely programmable (close resemblance to CEN standard 11312). All function blocks,

available in libraries, can be graphically connected.

●Engineering and commissioning with the ABT Site Tool using graphical function charts

●BACnet communication, in compliance with the BACnet standard including B-BC profile

(Rev. 1.15)

●Generic object viewer for device local data points via an embedded web-based interface

●Wireless connection for engineering and commissioning

●Integration of Modbus data points via RTU

●Direct connection of field devices

Type summary

Type

Order number

Description

PXC4.M16

S55375-C101

Compact automation station for BACnet MS/TP

Inputs/outputs

Total number of inputs/outputs (Onboard)

Number of universal inputs/outputs (UIO)

Number of relay outputs (DO)

Number of inputs/outputs (Onboard + TXM)

Number of Modbus data points RTU

UIO

Universal inputs/outputs support the following signal types:

●Passive sensors LG-Ni 1000, 2x LG-Ni1000, Pt 1000 (*75, 385), NTC 10k, NTC 100k

●Resistance sensors 1000 Ohm, 2500 Ohm, 2650 Ohm, 1000...1175 Ohm (for setpoint shift)

●Active sensors DC 0 ... 10 V

●Current measurement analog DC 0...20 mA or 4...20 mA, (inputs U1, U2, U7, U8)

●Binary potential-free contacts for signaling functions

●Counter to 25 Hz (electronic switch to 100 Hz)

●Analog outputs DC 0…10 V

Relay outputs for binary controls, changeover contact

(NO, NC, pulse)

Equipment combinations

I/O modules TXM (Series D and later)

Description

Type

Data sheet

Digital input module 8 or 16 I/O points

TXM1.8D, TXM1.16D

CM2N8172

Universal module without / with local operation and LCD

TXM1.8U, TXM1.8U-ML

CM2N8173

Super universal module without / with local operation and LCD

TXM1.8X, TXM1.8X-ML

CM2N8174

Relay module without / with local operation

TXM1.6R, TXM1.6R-M

CM2N8175

Resistance measuring module (for Pt100 4-wire)

TXM1.8P

CM2N8176

Triac module

TXM1.8T

CM2N8179

Digital input and relay module

TXM1.4D3R

CM2N8188

PXC4 can power TXM extensions modules (for details see planning overview A6V11973797)

Siemens Schweiz AG

A6V11937668_en--_b

Smart Infrastructure

2020-07-10

System controller

Description

Type

Data sheet

System controller to integrate Modbus and MS/TP devices

PXC5.E003

A6V11646020

Technical and mechanical design

The compact build allows for mounting the devices on a standard rail or a wall.

45 6

15 1413

10 12

Date/Series

S/N

WLAN

Default