Interfaces - Data Sheet - PXC4.E16-2

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)

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 display something like WIFI:S:PXC4.E16-2_0000550;T:WPA;P:1400052738;; Then SSID = PXC4.E16-2_0000550 and password = 1400052738 Determine manually: Use the information from the Date/Series/SN block It will display something like: Date/Series: 20190423A0000550 S/N: 1400052738 SSID = <ASN>_<Running number after the series letter> and password = <S/N>

M-bus interface on COM interface (RS485)
Interface type	EIA-485, electrically isolated
Baud rate	300, 600, 1200, 2400, 4800, 9600, 19200, 38400. The maximum baud rate is depending on the configuration of M-bus S-devices (subordinate devices) and M-bus repeater.
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 and DC 24 V
M-bus level converter including power supply (required)	Configuration examples (simple M-bus loads à 1.5 mA): Up to 2 M-bus devices: STV Electronic, MPW-2 ¹ Up to 6 M-bus devices: STV Electronic, MPW-6 ¹ Up to 60 M-bus devices: Relay GmbH, PW60 ¹

¹ For STV Electronic level converters, refer to https://www.stv-electronic.de/. For Relay GmbH level converters, refer to https://www.relay.de/.
The use of these products is a recommendation only. Siemens cannot guarantee functionality nor take over any warranty for third-party products. This information is subject to change without notice.

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.

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.

I/O modules TXM bus interface
Nominal voltage	DC 24 V
Supply current for I/O modules TXM	Max. 300 mA
Connectable in parallel with DC 24 V power supply module TXS1.12F4	For details, see: TX-I/O- engineering and installation, CM110562
Protection	Short-circuit proof
TXM I/O module plug: No protection against faulty wiring with AC 24 V	No electric protection. Use cover

Field device supply (I/O module TXM)
AC 24 V output current (terminal V~ on the TXM module)	Max. 2 A, short-circuit proof ¹⁾ If PXC4.E16-2 is powered by DC voltage, the field device supply on terminal V~ of the TXM modules is also DC voltage.

Field device supply (I/O module TXM)

AC 24 V output current (terminal V~ on the TXM module)

Max. 2 A, short-circuit proof ¹⁾

If PXC4.E16-2 is powered by DC voltage, the field device supply on terminal V~ of the TXM modules is also DC voltage.

¹⁾ Sum of onboard V~ and TXM module V~ current is max. 2 A.

Field device supply (Onboard)
AC 24 V output current (terminal V≃)	Max. 2 A, short-circuit proof ¹⁾ If PXC4.E16-2 is powered by DC voltage, the field device supply on terminal V≃ is also DC voltage.
DC 24 V output current (terminal V+)	Max. 100 mA, short-circuit proof, protected against incorrect wiring with AC 24 V

Field device supply (Onboard)

AC 24 V output current (terminal V≃)

Max. 2 A, short-circuit proof ¹⁾

If PXC4.E16-2 is powered by DC voltage, the field device supply on terminal V≃ is also DC voltage.

DC 24 V output current (terminal V+)

Max. 100 mA, short-circuit proof, protected against incorrect wiring with AC 24 V

¹⁾ Sum of onboard V~ and TXM module V~ current is max. 2 A.

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)

On PXC4.E16-2

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 and DC 24 V

Interfaces - Data Sheet - PXC4.E16-2 - PXC4.E16S-2

PXC4.E16-2 Automation stations Data Sheet

On PXC4.E16-2