Siemens Desigo PXC4.E16 Manuale utente

Desigo™

Automation stations

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 (BTL certified)

● 2-port Ethernet switch for low-cost cabling

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

Extendable 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

A6V11646018_en--_e Smart Infrastructure

2021-06-11

Siemens Schweiz AG A6V11646018_en--_e

Smart Infrastructure 2021-06-11

Type summary

Type Order number Description

PXC4.E16 S55375-C100 Compact automation station for BACnet/IP with Modbus

PXC4.E16S S55375-C108 Compact automation station for BACnet/IP

Inputs/outputs

PXC4.E16 PXC4.E16S

Number of inputs/outputs (Onboard) 16 16

Number of universal inputs/outputs (UIO) 12 12

Number of relay outputs (DO) 4 4

Number of inputs/outputs (Onboard + TXM) 40 40

Number of Modbus data points TCP and/or RTU 40 0

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

DO Relay outputs for binary controls, changeover contact

(NO, NC, pulse)

System functions

PXC4.E16 PXC4.E16S

Number of Modbus RTU devices in field level network per

PXC4.E16

Up to 31 0

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 A6V11646018_en--_e

Smart Infrastructure 2021-06-11

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

Functions

Automation stations 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

● BTL tested 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

● PXC4.E16: Integration of Modbus data points via RTU and/or TCP

● Direct connection of field devices

Siemens Schweiz AG A6V11646018_en--_e

Smart Infrastructure 2021-06-11

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

4 2-port Ethernet switch with 2 LEDs per port for

display purposes

5 PXC4.E16: Plug-in terminal block with screw

terminals

KNX, PL-link, for future use

6 Plug-in terminal block with screw terminals

Power supply

7 Plug-in terminal blocks with screw terminals

Universal inputs/outputs, field device supply

8 Connector for I/O modules TXM

9 Plug-in terminal block with screw terminals

Relay outputs

10 PXC4.E16: Plug-in terminal block with screw

terminals

COM, Modbus RTU

11 PXC4.E16: DIP switch for bus termination and

polarization COM

12 Slider for mounting on DIN rails

13 Eyelets for cable ties

1 Plastic housing 14 Holes for wall mounting

2 Service button (identification in the network and

WLAN on/off)

15 Date / Series and Serial number

3 LEDs for communication and state 16 QR code for default WLAN access

Description see Technical data

Siemens Schweiz AG A6V11646018_en--_e

Smart Infrastructure 2021-06-11

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

Continuously OFF

Flashing

Device operational

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

(PXC4.E16)

Yellow Flashing

Continuously OFF

Communication

No communication to subsystem

COM RX

(PXC4.E16)

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 re-

starts.

5. Wait until the device has fully

started – unconfigured (green

RUN LED and red SVC LED

are flashing)

Siemens Schweiz AG A6V11646018_en--_e

Smart Infrastructure 2021-06-11

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

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.

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 out-

side the installation box.

Siemens Schweiz AG A6V11646018_en--_e

Smart Infrastructure 2021-06-11

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 electric shock! Incorrect installation of the device may lead to electric shock injuries

when touching the device!

● Install the device in a lockable cabinet or use terminal covers.

● Do not install the device 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.

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% (PELV)

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

Siemens Schweiz AG A6V11646018_en--_e

Smart Infrastructure 2021-06-11

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.

The interval of 5 minutes is only valid for change log but not for trending.

In case of a power failure, trend log data can be lost up to 30 minutes.

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 with shaft ø = 3 mm

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)

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>

Siemens Schweiz AG A6V11646018_en--_e

Smart Infrastructure 2021-06-11

I/O modules TXM interface

Nominal voltage DC 24V

Power supply for I/O modules TXM Max. 300mA

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

On PXC4.E16

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

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)

Siemens Schweiz AG A6V11646018_en--_e

Smart Infrastructure 2021-06-11

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 60 20

BI Pulse NO 30 10

CI Mech (25Hz) 20 10 25 Hz

CI El (100Hz) 5 0 100 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 105 switchings

1 x 105 switchings

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 *)

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