Data Sheet for Product

8
Siemens Schweiz AG A6V11937668_en--_g
Smart Infrastructure 2022-02-18
On PXC4.M16
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, shielded cable recommended (shield has
to 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
Inputs
12 universal inputs U1...U12 with the following functions
Temperature measurement, analog
Type Range (over range) Resolution
AI NTC10K (Type II/Beta (0-50 °C) = 3892 K) -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)
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