PXC4.M16
16Pages

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 (BTL certified) Integration of Modbus data points via RTU 16 inputs/outputs: 12 universal inputs/outputs, 4 relay outputs Extendable via I/O modules TXM… 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 Optimized, flexible automation station for HVAC and building automation and control systems ● System functions (alarming, scheduling, trending, access protection with individually definable user profiles and categories) ● Integrates data points and/or subsystems via Modbus RTU ● 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. Engineering and commissioning with the ABT Site Tool using graphical function charts Freely programmable. All function...

Equipment combinations I/O modules TXM (Series D and later) Description Data sheet Digital input module 8 or 16 I/O points Universal module without / with local operation and LCD Super universal module without / with local operation and LCD Relay module without / with local operation Resistance measuring module (for Pt100 4-wire) Triac module Digital input and relay module PXC4 can power TXM extensions modules (for details see planning overview A6V13054435). KNX PL-Link devices Description Data sheet Wall-mounted temperature sensor Wall-mounted temperature and humidity sensor Wall-mounted...

Technical and mechanical design The compact build allows for mounting the devices on a standard rail or a wall. 5 PXC4.M16: Plug-in terminal block with screw terminals KNX PL-Link Plug-in terminal block with screw terminals Power supply Plug-in terminal blocks with screw terminals Universal inputs/outputs, field device supply Plug-in terminal block with screw terminals Relay outputs PXC4.M16: Plug-in terminal block with screw terminals COM, Modbus RTU WLAN Default PXC4.M16S: Plug-in terminal block with screw terminals MS/TP 10 PXC4.M16: Plug-in terminal block with screw terminals MS/TP DIP...

Continuously ON Continuously OFF Flashing Device operational Device not operational Start-up or program halted Continuously OFF Continuously ON Rapid flashing OK HW or SW fault Firmware or application missing/corrupted Communication BACnet MS/TP No communication Communication No communication to subsystem Flashing per wink command Identification of device after receipt of wink command WLAN inactive WLAN active and at least one WLAN client connected WLAN active and no WLAN client connected Enable/ disable WLAN WLAN is disabled automatically after 10 min, if no client is connected Service...

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) Wall, vertically Wall, horizontal – From left to right – From right to left WARNING No internal line protection for supply lines to external...

Technical data Power supply Operating voltage (24 V~, ⏊, 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 Internal fusing External supply line fusing (EU) Non-renewable fuse max. 10 A slow-blow or circuit breaker max. 13 A Tripping characteristic B, C, D per EN 60898 or Power supply with current limitation of max. 10 A Power consumption (for transformer planning) PXC4.M16S Full load Base load PXC4.M16S: without loading by I/O modules...

Interfaces Screw terminals, plug-in Cu-wire or Cu-strand with wire end sleeve Cu-strand without wire end sleeve Stripping length Slot screws, screwdriver size 1 with shaft ø = 3 mm BACnet MS/TP interface Interface type Baud rate 120 Ohm, switchable with DIP switch 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 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...

I/O modules TXM interface Nominal voltage Power supply for I/O modules TXM Parallel switchable with 24VDC Supply TXS1.12F4 For details, see: TX-I/O engineering and installation, CM110562 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.M16 Modbus RTU interface Interface type Baud rate 120 Ohm, switchable with DIP switch 270 Ohm pull-up/pull-down resistances, switchable with DIP switch Cabling (in-house cabling only) 3-wire cable, shielded cable recommended (shield must be connected...

Current measurement, analog (only inputs U1, U2, U7, U8) Type Range (over range) Digital input Contact query voltage Contact query current Contact resistance for closed contacts Contact resistance for open contacts Counter memory (counter inputs Min. closing/operating time [ms] including bounces Of which Max. bounce time [ms] Max. counter frequency (symmetrical) Range (over range) Output current Outputs Analog output Relay output (outputs DO1...DO4) External supply line fusing Non-renewable fuse Circuit breakers Switching voltage AC/DC NO contact: Max. 4 A resistive, 3 A inductive (cos phi...

Field device supply (Onboard) AC 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) *) Sum total onboard V~ and TXM bus V~ max. 2 A Conformity Ambient conditions and protection classification Classification as per EN 60730 Automatic action Control function Overvoltage category Protection against electric shock 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 Climatic...