SIEMENS PXC5.E003 System Controller
Product Information
The DesigoTM System Controller PXC5.E003 is a programmable system controller for the integration of BACnet/MSTP, Modbus, and KNX PL-Link devices. It has a communication BACnet/IP (BTL certified) and a 2-port Ethernet switch for low-cost cabling. The system controller integrates Modbus data points via RTU and/or TCP, BACnet MS/TP devices, and KNX PL-Link bus to connect sensors and operator units (including bus power). This system controller operates on AC 24 V and can be mounted on standard rails or on the wall using plug-in screw terminal blocks.
System controller for integration of BACnet/MSTP, Modbus, and KNX PL-Link devices
- System controller to integrate BACnet MS/TP, Modbus, and KNX PL-Link devices
- Communication BACnet/IP (BTL certified)
- 2-port Ethernet switch for low-cost cabling
- Integration of Modbus data points via RTU and / or TCP
- Integration of BACnet MS/TP devices
- KNX PL-Link bus to connect sensors and operator units (including bus power)
- WLAN interface for engineering and commissioning
- Operating voltage AC 24 V
- Mounted on standard rails or on the wall
- Plug-in screw terminal blocks
Functions
Freely programmable system controller.
- System functions (alarming, scheduling, trending, access protection with individually definable user profiles and categories)
- System controller for system networks with PXC3, PXC4, PXC5, PXC7 and DXR controllers over BACnet/IP, BACnet/SC, or BACnet MS/TP
- Integrates third-party devices and systems
- The following functions are available with KNX PL-Link bus:
- Communication with room operator units and sensors.
- Plug-and-play connection of Siemens field devices with KNX PL-Link.
- Generic object viewer for data points of several assigned devices via embedded web interface
- Generic object viewer for local data points and assigned devices via embedded web interface
- Engineering and commissioning with the ABT Site Tool using graphical function charts
- BTL tested BACnet communication on IP (BACnet/IP and BACnet/SC) or MS/TP, in compliance with the BACnet standard including B-BC profile (Rev. 1.15)
- Wireless connection for engineering and commissioning
- Cloud connectivity for remote access
- Integration of Modbus data points via RTU and / or TCP
Type summary
| Type | PXC5.E003 |
| Order number | S55375-C103 1) |
| Number of integration data points (Modbus TCP and/or RTU) | up to 500 |
| Number of BACnet/MSTP devices per RS485 interface | up to 60 2) |
| Number of BACnet/SC devices as a BACnet/SC hub | up to 100 |
| Number of KNX PL-Link devices | up to 64 |
| Number of configurable RS485 interfaces either for integration of Modbus RTU or BACnet MS/TP | 2 |
Equipment combinations
- KNX PL-Link devices
Description Type Data sheet Wall-mounted temperature sensor QMX3.P30 CM2N1602 Wall-mounted temperature and humidity sensor QMX3.P40 Wall-mounted temperature, humidity, and CO2 sensor QMX3.P70 Wall-mounted temperature sensor and room operator unit QMX3.P34 Wall-mounted temperature and humidity sensor and room operator unit QMX3.P44 Wall-mounted temperature, humidity, and CO2 sensor and room operator unit QMX3.P74 - 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.EA6V11664137 Touch panels clients with data storage in web server PXG3.Wx00-1 7.0 ”
10.1 ”
15.6 “PXM30-1
PXM40-1
PXM50-1A6V11664139 BACnet/IP web server with standard functionality BACnet/IP web server with extended functionality PXG3.W100-2 PXG3.W200-2 A6V12304192
Technical and mechanical design
The compact build allows for mounting the devices on a standard rail or a wall.
 |
4 | Service button (network login and WLAN on/off) | |
| 5 | 2-port Ethernet switch with 2 LEDs per port for display purposes | ||
| 6 | Plug-in terminal block with screw terminals KNX PL-Link | ||
| 7 | Plug-in terminal block with screw terminals Power supply | ||
| 8 | Plug-in terminal blocks with screw terminals Digital input, for future use | ||
| 9 | Plug-in terminal block with screw terminals M-bus, for future use | ||
| 10 | Plug-in terminal block with screw terminals COM1 / COM2 (MS/TP or Modbus) | ||
| 11 | DIP switches for bus termination and polarization COM1 / COM2 | ||
| 12 | Slider for mounting on standard mounting rails | ||
| 13 | Eyelets for cable ties | ||
| 1 | Plastic housing | 14 | Holes for wall mounting |
| 2 | Front cover | 15 | Date / Series and Serial number |
| 3 | LEDs for communication and state | 16 | QR code for default WLAN access Description see Technical data |
LED displays
Product Documentation
Related documents such as environmental declarations, CE declarations, etc., can be downloaded from the following Internet address: www.siemens.com/bt/download
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 |
Installation
WARNING 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 European Directive and may not be disposed of as domestic waste.
- Use only designated channels for disposing the devices.
- Comply with all local and currently applicable laws and regulations.
- Dispose of empty batteries at designated collection points.
Technical data
Power supply
Power consumption (for transformer planning)
| Full load | 19 VA / 0.8 A |
| Base load (without loading by KNX PL-Link and M-Bus) | 12 VA / 0.5 A |
| KNX PL-Link supply | 4 VA / 0.17 A |
| M-Bus supply, for future use | 3 VA / 0.13 A |
Function data
| Hardware information | |
| Processor | NXP i.MX8 DualX, 1 GHz |
| Storage | 1 GByte RAM
8 GByte eMMC |
| Data backup in the event of power failure |
| Energy reserve (Supercap) to support real-time clock (7 days).
Energy reserve to support real-time clock can be extended using optional battery CR2032: depending on the life time of battery and use, typical 10 years. (Battery safety requirement and specification for CR2032 according to IEC 60086-4 or UL1642. Battery must be rated for ambient temperature 70 °C (158 °F)) Low power of battery will be indicated by LED and a system alarm will be generated |
| 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
| 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/IP on UDP/IP, BACnet/SC on TCP/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) |
| 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) |
The two COM interfaces can be used either for Modbus or for MS/TP, according to configuration.
| Modbus RTU interface | |
| Interface type | EIA-485, electrically isolated |
| Baud rate | 300, 600, 1200, 2400, 4800, 9600, 19200, 38400,
57600, 76800, 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, shielded cable recommended (shield must be connected to building earth in the mounting panel)
Max. 1000 m (3300 ft) |
| Protection | Short-circuit proof
Protection against faulty wiring with AC 24 V |
| BACnet MS/TP interface | |
| Interface type | EIA-485, electrically isolated |
| Baud rate | 9600, 19200, 38400, 76800, 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) Distance between 2 devices Length of the MS/TP line | 3-wire cable, shielded Max. 500 m (1650 ft)
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:PXC5.E003_0000550;T:WPA;P:1400052738;; Then SSID = PXC5.E003_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> |
|
| KNX PL-Link interface | |
| Type | KNX TP1 PL-Link, galvanic isolation Baud rate: 9.6 kbps |
| Cabling (in-house cabling only)
Cable length |
2-wire cable, 0.75 mm2 / AWG20 or 1 mm2 / AWG18
With internal supply: Max. 80 m (262 ft) With external supply: Max. 1000 m (3300 ft) |
| Internal bus power | Max. 50 mA
When using external bus power for KNX PL-Link, switch off the internal bus power via the ABT Site Tool. |
Conformity
| Ambient conditions and protection classification | |
| Classification as per EN 60730 Automatic action
Control function Degree of pollution Overvoltage category |
Type 1 Class A 2I |
| Protection against electric shock | Protection class III |
| 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 / 2K12
Temperature -25…70 °C (-13…158 °F) Air humidity 5…95 % (non-condensing) ● Class 3K23 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 2M4 ● Class 3M11 |
| Standards, directives and approvals | |
| Product standards | IEC/EN 60730-1, IEC/EN 62368-1 |
| Product family standard | IEC/EN 63044-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 15C |
| 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). |
Documents can be downloaded at http://siemens.com/bt/download.
Housing
| Color top/bottom | RAL 7035 (light grey) / RAL 7016 (anthracite grey) |
| Dimensions | per DIN 43880, see dimensions |
| Weight without/with packaging | 351 g / 391 g |
Connection terminals
Dimensions
Warranty
The application-specific technical data is guaranteed only in combination with the Siemens products listed in the ‘Device combinations’ section. If third-party products are used, any guarantee provided by Siemens will be invalidated.
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.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference, and
- this device must accept any interference received, including interference that may cause undesired operation
FCC Caution: Changes or modifications not expressly approved by Siemens Switzerland Ltd. could void user authority to operate the equipment. United States representative https://new.siemens.com/us/en/products/buildingtechnologies/home.html
Industry Canada statement
This device complies with ISED’s license-exempt RSSs. Operation is subject to the following two conditions:
- This device may not cause interference, and
- This device must accept any interference received, including interference that may cause undesired operation.
Issued by
Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug
+41 58 724 2424
www.siemens.com/buildingtechnologies
© Siemens Switzerland Ltd, 2020
Technical specifications and availability subject to change without notice.
Documents / Resources
 | PXC5.E003 System Controller |
References
- csagroup.org/services-industries/product-csagroup.org
- csagroup.org/services-industries/product-listingcsagroup.org
- new.siemens.com/us/en/products/buildingtechnologies/home.htmlnew.siemens.com
- ul.com/databaseul.com
- Autonomous Buildings | Siemenswww.siemens.com
- User Manualmanual.tools