Siemens Desigo PXC4.M16 - Page 11

11
Siemens Schweiz AG A6V11937668_en--_l
Smart Infrastructure 2023-12-22
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.M16 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.M16 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mm
2
(22 to 14AWG)
or 2 x 0.6mm ∅ to 1.0mm
2
(22 to 18AWG)
Cu-strand without wire end sleeve 1 x 0.6mm ∅ to 2.5mm
2
(22 to 14AWG)
or 2 x 0.6mm ∅ to 1.5mm
2
(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.M16
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