Siemens Desigo PXC4.E16 User manual

A6V11646018_en--_b

Smart Infrastructure

2020-07-10

Desigo™

Automation station

PXC4.E16

For the control of primary plants

●Compact automation station for HVAC and building control systems,

freely programmable using graphical programming interface

●Communication BACnet/IP

●2-port Ethernet switch for low-cost cabling

●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 and / or TCP

●WLAN interface for engineering and commissioning

●Operating voltage AC 24 V

●Mounted on standard rails or on the wall

●Plug-in screw terminal blocks

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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

●Cloud connectivity for remote access

●Integration of Modbus data points via RTU and/or TCP

●Direct connection of field devices

Type summary

Type

Order number

Description

PXC4.E16

S55375-C100

Compact automation station for BACnet/IP

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 TCP and/or 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

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

Desigo Control Point

Description

Type

Data sheet

BACnet touch panels with integrated Web server

7.0 "

10.1 "

15.6 "

PXM30.E

PXM40.E

PXM50.E

A6V11664137

Client Touch Panels with data storage in Web server PXG3.Wx00-1:

7.0 "

10.1 "

15.6 "

PXM30-1

PXM40-1

PXM50-1

A6V11664139

BACnet/IP Web server with standard functionality

BACnet/IP Web server with extended functionality

PXG3.W100-1

PXG3.W200-1

A6V10808336

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

2-port Ethernet switch with 2 LEDs per port for

display purposes

Plug-in terminal block with screw terminals

KNX, PL-link, for future use

Plug-in terminal block with screw terminals

Power supply

Plug-in terminal blocks with screw terminals

Universal inputs/outputs, field device supply

Connector for I/O modules TXM

Plug-in terminal block with screw terminals

Relay outputs

Plug-in terminal block with screw terminals

COM, Modbus RTU

DIP switch for bus termination and polarization

COM

Slider for mounting on DIN rails

Eyelets for cable ties

Plastic housing

Holes for wall mounting

Service button (identification in the network and

WLAN on/off)

Date / Series and Serial number

LEDs for communication and state

QR code for default WLAN access

Description see Technical data

LED displays

Activity

LED

Color

Activity

Function

Ethernet

1/2

Green

Continuously ON

Continuously OFF

Flashing

Link active

No connection

Network traffic

Yellow

Continuously ON

Continuously OFF

Link 100

Link 10 Mbps

RUN

Green

Continuously ON

Device operational

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Activity

LED

Color

Activity

Function

Continuously OFF

Flashing

Device not operational

Start-up or program halted

Red

Continuously OFF

Continuously ON

Rapid flashing

HW or SW fault

Firmware or application missing/corrupted

Blue

Continuously ON

Continuously OFF

Connection to the cloud OK

No connection to the cloud

COM TX

Yellow

Flashing

Continuously OFF

Communication

No communication to subsystem

COM RX

Yellow

SVC

Red

Continuously OFF

Flashing

Device is not configured

Flashing per wink

command

Identification of the device after receipt of wink

command

2s 1s

5 Hz 5 Hz

2s 1s

WLAN

Blue

Steady OFF

Steady ON

Flashing

WLAN inactive

WLAN active and at least one WLAN client

connected

WLAN active and no WLAN client connected

Service

button

Short press (< 1 s)

Long press (> 3 s)

Identification in the network

Enable / disable WLAN

WLAN is disabled automatically after 10 min if

no client is connected

As per description

Do the following to reset the device to factory

state:

1. Power off the device.

2. Power on the device.

3. Wait until all LEDs light up and turn off

again, then press the Service button.

4. Keep the Service button pressed until all

LEDs light up, then release the button.

All LEDs go off, the device restarts.

5. Wait until the device has fully started –

unconfigured (green RUN LED and red

SVC LED are flashing)

Product documentation

Related documents such as the environmental declarations, CE declarations, etc., can be

downloaded from the following Internet address:

https://siemens.com/bt/download

Siemens Schweiz AG

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2020-07-10

Notes

Safety

CAUTION

National safety regulations

Failure to comply with national safety regulations may result in personal injury and

property damage.

●Observe national provisions and comply with the appropriate safety regulations.

●This equipment is intended only for use in a restricted access area (lockable cabinet)

●This equipment is not suitable for use in locations where children are likely to be

present.

●Conductors with a cross-section of 0.5 mm2 (AWG24) or greater shall comply with the

requirements of IEC 60332-1-2 and IEC 60332-1-3 or IEC TS 60695-11-21.

Mounting position and ambient temperature

The devices can be snapped onto standard rails or screwed onto a flat surface.

Plug-in screw terminals connect power and interfaces.

Ambient temperature -5...50 °C (23...122 °F)

Ambient temperature -5...45 °C (23...113 °F)

●Wall, horizontal

–From left to right

–From right to left

●Overhead

●Wall, vertically

–From top to bottom

–From bottom to top

●On a horizontal surface

CAUTION

Risk of overheating for failure to comply with ambient temperature

Burning and damage to the device

●Ensure sufficient ventilation to comply with the permissible ambient temperature within

the panel or installation box. The temperature must be at least 10 K (18° F) lower

outside the installation box.

Installation

WARNING

No internal line protection for supply lines to external consumers

Risk of fire and injury due to short-circuits!

●Adapt the wire cross sections as per local regulations to the rated value of the installed

fuse.

WARNING

The relay outputs may be connected to mains voltage

Risk of electrical shock!

●Use terminal covers or install the device in a lockable cabinet.

Siemens Schweiz AG

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Smart Infrastructure

2020-07-10

Disposal

The device is considered an electronic device for disposal in accordance

with the European Guidelines and may not be disposed of as domestic

garbage.

●Dispose of the device through channels provided for this purpose.

●Comply with all local and currently applicable laws and regulations.

Technical data

Power supply

Operating voltage (24 V~, ⏊, )

AC 24 V -15 / +20 % (SELV / PELV) or

AC 24 V Class 2 (US)

48…63 Hz

Functional ground (US)

Functional earth

The terminal for the functional ground must be

connected on the installation side with the building

grounding system (PE).

Screw terminals for wire cross sections up to

Max. 2.5 mm2(14 AWG)

Internal fusing

4 A irreversible / non-replaceable

External supply line fusing (EU)

Non-renewable fuse max. 10 A slow-blow

circuit breaker max. 13 A

Tripping characteristic B, C, D per EN 60898

Power supply with current limitation of max. 10 A

Power consumption (for transformer planning)

Base load (without loading by I/O modules TXM and

field devices)

10 VA / 0.4 A

Field device supply V+ (DC 24 V, 100 mA)

(terminals 8 and 19)

5 VA / 0.2 A

Field device supply V~ (AC 24 V, 2 A)

(terminals 18 and 29)

48 VA / 2 A

I/O modules TXM supply

15 VA / 0.6 A

Function data

Hardware information

Processor

Texas Instruments AM335x, 300 MHz

Storage

128 MByte SDRAM (DDR3)

512 MByte NAND Flash

Data backup in the event of power failure

Energy reserve (supercap) to support real-time clock (7 days).

Data available if stored to flash memory. Occurs every 5 minutes.

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Interfaces

Screw terminals, plug-in

Cu-wire or Cu-strand with wire end sleeve

1 x 0.6 mm ∅to 2.5 mm2(22 to 14 AWG)

or 2 x 0.6 mm ∅to 1.0 mm2(22 to 18 AWG)

Cu-strand without wire end sleeve

1 x 0.6 mm ∅to 2.5 mm2(22 to 14 AWG)

or 2 x 0.6 mm ∅to 1.5 mm2(22 to 16 AWG)

Stripping length

6...7.5 mm (0.24...0.29 in)

Screwdriver

Slot screws, screwdriver size 1

Max. tightening torque

0.6 Nm (0.44 lb ft)

Ethernet interface

Plug

2 x RJ45, shielded

Interface type

10Base-T / 100Base-TX, IEEE 802.3 compatible

Bit rate

10/100 Mbps, autosensing

Protocol

BACnet on UDP/IP and HTTPS on TCP/IP

Cabling (in-house cabling only), cable type

10 Mbps: Min. CAT3, shielded cable is recommended

100 Mbps: Min. CAT5, shielded cable is recommended

Cable length

Max. 100 m (330 ft)

Modbus RTU interface

Interface type

EIA-485, electrically isolated

Baud rate

1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200

(depending on the configuration)

Internal bus termination

120 Ohm, switchable with DIP switch

Internal bus polarization

270 Ohm pull-up/pull-down resistances, switchable with

DIP switch

Cabling (in-house cabling only)

Cable length

3-wire cable

Max. 1000 m (3300 ft)

Protection

Short-circuit proof

Protection against faulty wiring with AC 24 V

WLAN interface

Interface type

Wireless access point

Supported standards

Frequency band

WLAN channels

Maximum radio-frequency power

IEEE 802.11b/g/n

2.4…2.462 GHz

1…11

16.4 dBm

Distance (unobstructed field)

Min. 5 m (16 ft)

Device pairing

Activation / Deactivation with service button

Automatic switch off after 10 minutes if no WLAN-client

is connected.

Optionally, for cyber security reasons, the WLAN can be

permanently disabled via configuration.

Default SSID and WLAN password: Scan the QR code.

It will show something like WIFI:S:PXC4.E16_0000550;T:WPA;P:1400052738;;

Then SSID = PXC4.E16_0000550 and password = 1400052738

Determine manually: Use the information from the Date/Series/SN block It will show something like:

Date/Series: 20190423A0000550

S/N: 1400052738

SSID = <ASN>_<Running number after the series letter> and password = <S/N>

I/O modules TXM interface

Nominal voltage

DC 24 V

Power supply for I/O modules TXM

Max. 300 mA

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I/O modules TXM interface

Parallel switchable with 24VDC Supply TXS1.12F4

For details, see: TX-I/O engineering and installation,

CM110562

Protection

Short-circuit proof

Connector for I/O modules TXM on the side: No

protection against faulty wiring with AC 24 V

No electrical protection.

Use the cover

Inputs

12 universal inputs U1...U12 with the following functions

Temperature measurement, analog

Type

Range (over range)

Resolution

AI NTC10K

-40...115 °C (-52.5...155 °C)

-48...239 °F (-62.5...311 °F)

10 mK (25 °C)

0.018 °F

AI NTC100K

-40...125 °C (-52.5...155 °C)

-48...257 °F (-62.5...311 °F)

AI PT1K 385 (EU) *)

-50...600 °C (-52.5...610 °C)

-58...1112 °F (-62.5...1130 °F)

20 mK

0.036 °F

AI PT1K 375 (NA) *)

-50...180 °C (-52.5...185 °C)

-58...356 °F (-62.5...365 °F)

10 mK

0.018 °F

AI (LG-)Ni1000 *)

AI 2x (LG-)Ni1000 *)

Resistance sensor, analog

Type

Range (over range)

Resolution

AI 1000 Ohm *)

0...1000 Ω (0...1050 Ω)

0.1 Ω

AI 2500 Ohm *)

0...2500 Ω (0...2650 Ω)

0.1 Ω

AI Pt1000 *)

0...2500 Ω (0...2650 Ω)

0.1 Ω

AI 1000-1175 Ohm *) for setpoint shift

1000...1175 Ω (900...1295 Ω)

0.1 Ω

*) A fixed value of 1 Ω is calibrated to correct line resistance.

Voltage measurement, analog

Type

Range (over range)

Resolution

AI 0...10 V

0...10 V (-1.5...11.5 V)

1 mV

AI 0...10 V standard

0...100% (-10...110%)

0.01%

Open connection: Negative voltage -1.5 V (line failure detection)

Current measurement, analog (only inputs U1, U2, U7, U8)

Type

Range (over range)

Resolution

Load

AI 4-20 mA

4...20 mA (1.6...22.4 mA)

1 µA

Min. 490 Ω

AI 0-20 mA

0...20 mA (-3...23 mA)

1 µA

Min. 490 Ω

Digital input

Contact query voltage

21.5...25 V

Contact query current

1 mA; 6 mA initial current

Contact resistance for closed contacts

Max. 200 Ω

Contact resistance for open contacts

Min. 50 kΩ

Counter memory (counter inputs

0 ... 4.3 x 109(32-bit counter)

Min. closing/operating time [ms]

including bounces

Of which

Max. bounce time [ms]

Max. counter frequency

(symmetrical)

BI NO / BI NC

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Digital input

BI Pulse NO

CI Mech (25Hz)

25 Hz

CI El (100Hz)

100 Hz

Outputs

Analog output

Type

Range (over range)

Resolution

Output current

AO 0-10 V

0...10 V (-0.05…10.6 V)

1 mV

Max. 1 mA

AO 0-10 V

standard

0...100%

0% = 0 V, 100% = 10 V

(-0.05...10.6 V)

0.01 %

Max. 1 mA

Relay output (outputs DO1...DO4)

External supply line fusing

Non-renewable fuse

Circuit breakers

Max. 10 A, slow

Max. 13 A, characteristic B, C, D as per EN 60898

Switching voltage AC/DC

Max. AC 250 V / DC 30 V

Min. AC/DC 12 V

Current load AC

NO contact: Max. 4 A resistive, 3 A inductive (cos phi

0.6)

NC contact: max. 2 A resistive, 1.5 A inductive (cos phi

0,6)

Min. 1 mA at AC 250 V

Min. 10 mA at AC 12 V

Current load DC

NO contact: Max. 3 A resistive at DC 30 V

NC contact: Max. 1 A resistive at DC 30 V

Min. 10 mA resistive at DC 12 V

Switch-on current

NO contact: Max. 10 A (1 s)

NC contact: Max. 3 A (1 s)

Response/release time

7 ms / 3 ms typical

Contact life at AC 250 V (reference values)

At 0.3 A resistive

NO contact at 3 A resistive

NC contact at 2 A resistive

Reduction fact at ind. load (cos phi = 0.6)

5 x 105switchings

1 x 105switchings

0.6

Insulating strength between relay contacts and system

electronics (reinforced insulation).

AC 3750 V, as per EN 60730-1

Field device supply (Onboard)

AC 24 V (terminal V~)

Max. 2 A, short-circuit proof *)

DC 24 V (terminal V+)

Max. 100 mA, short-circuit proof, protected against

incorrect wiring with AC 24 V

Field device supply (I/O modules TXM)

AC 24 V (terminal V~ on the I/O modules TXM)

Max. 2 A, short-circuit proof *)

*) Sum total onboard V~ and TXM bus V~ max. 2 A

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Conformity

Ambient conditions and protection classification

Classification as per EN 60730

Automatic action

Control function

Degree of pollution

Overvoltage category

Type 1

Class A

III

Design

Suitable for use in protection class I or II systems

Degree of protection of housing to EN 60529

Front parts in DIN cut-out

Terminal part

IP30

IP20

Climatic ambient conditions

●Storage / Transport (packaged for transport) as per

IEC EN 60721-3-2

●Operation as per IEC/EN 60721-3-3

●Class 1K22 / 2K21

Temperature -25...70 °C (-13...158 °F)

Air humidity 5...95 % (non-condensing)

●Class 3K22

Temperature -5...50 °C (23...122 °F)

(for details see chapter Mounting)

Air humidity 5...95 % (non-condensing)

Mechanical ambient conditions

●Transport per IEC/EN 60721-3-2

●Operation as per IEC/EN 60721-3-3

●Class 2M11

●Class 3M11

Standards, directives and approvals

Product standard

EN 60730-1

Product family standard

EN 50491-x

Electromagnetic compatibility (EMC)

For residential, commercial, and

industrial environments

EU conformity (CE)

See CE declaration 1)

EAC compliance

Eurasian compliance

RCM conformity

See RCM declaration 1)

UL/cUL approbation (US / Canada)

UL916; http://ul.com/database

CSA certification

C22.2, http://csagroup.org/services-industries/product-

listing

FCC

CFR 47 Part 15 Class B

BACnet.

B-BC

Environmental compatibility 1)

The product environmental declaration 1) contains data

on environmentally compatible product design and

assessments (RoHS compliance, materials

composition, packaging, environmental benefit,

disposal).

1) Documents can be downloaded at http://siemens.com/bt/download.

FCC Statement

This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to part 15 of the FCC Rules. These limits are designed to provide

reasonable protection against harmful interference in a residential installation. This

equipment generates, uses and can radiate radio frequency energy and, if not installed and

used in accordance with the instructions, may cause harmful interference to radio

communications. However, there is no guarantee that interference will not occur in a

particular installation. If this equipment does cause harmful interference to radio or television

reception, which can be determined by turning the equipment off and on, the user is

encouraged to try to correct the interference by one or more of the following measures:

●Reorient or relocate the receiving antenna.

●Increase the separation between the equipment and receiver.

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