General information
Product type designationSM 1234, AI 4x13 bit/AQ 2x14 bit
based on6ES7234-4HE32-0XB0
Supply voltage
Rated value (DC)24 V
Input current
Current consumption, typ.60 mA
from backplane bus 5 V DC, typ.80 mA
Power loss
Power loss, typ.2 W
Analog inputs
Number of analog inputs4; Current or voltage differential inputs
permissible input voltage for voltage input (destruction limit), max.35 V
permissible input current for current input (destruction limit), max.40 mA
Cycle time (all channels) max.625 µs
Input ranges
VoltageYes; ±10V, ±5V, ±2.5V
CurrentYes; 4 to 20 mA, 0 to 20 mA
Input ranges (rated values), voltages
-10 V to +10 VYes
— Input resistance (-10 V to +10 V)≥9 MOhm
-2.5 V to +2.5 VYes
— Input resistance (-2.5 V to +2.5 V)≥9 MOhm
-5 V to +5 VYes
— Input resistance (-5 V to +5 V)≥9 MOhm
Input ranges (rated values), currents
0 to 20 mAYes
— Input resistance (0 to 20 mA)280 Ω
4 mA to 20 mAYes
Analog outputs
Number of analog outputs2; Current or voltage
Output ranges, voltage
-10 V to +10 VYes
Output ranges, current
0 to 20 mAYes
4 mA to 20 mAYes
Load impedance (in rated range of output)
with voltage outputs, min.1 000 Ω
with current outputs, max.600 Ω
Cable length
shielded, max.100 m; shielded, twisted pair
Analog value generation for the inputs
Measurement principleDifferential
Integration and conversion time/resolution per channel
Resolution with overrange (bit including sign), max.12 bit; + sign
Integration time, parameterizableYes
Interference voltage suppression for interference frequency f1 in Hz40 dB, DC to 60 V for interference frequency 50 / 60 Hz
Smoothing of measured values
ParameterizableYes
Step: NoneYes
Step: lowYes
Step: MediumYes
Step: HighYes
Integration and conversion time/resolution per channel
Resolution with overrange (bit including sign), max.14 bit; Voltage: 14 bit; Current : 13 bit
Errors/accuracies
Temperature error (relative to input range), (+/-)25 °C ±0.1%, to 55 °C ±0.2% total measurement range
Temperature error (relative to output range), (+/-)25 °C ±0.3%, to 55 °C ±0.6% total measurement range
Basic error limit (operational limit at 25 °C)
Voltage, relative to input range, (+/-)0.1 %
Current, relative to input range, (+/-)0.1 %
Voltage, relative to output range, (+/-)0.3 %
Current, relative to output range, (+/-)0.3 %
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency
Common mode voltage, max.12 V
Interrupts/diagnostics/status information
AlarmsYes
Diagnostics functionYes
Alarms
Diagnostic alarmYes
Diagnoses
Monitoring the supply voltageYes
Wire breakYes
short-circuitYes
Diagnostics indication LED
for status of the inputsYes
for status of the outputsYes
for maintenanceYes
Potential separation analog outputs
between the channels and the power supply of the electronicsNo
Isolation
Isolation tested with750 V DC (type test) and according to EN 50155 (routine test)
Degree and class of protection
IP degree of protectionIP20
Standards, approvals, certificates
CE markYes
Ecological footprint
environmental product declarationYes
Global warming potential
— global warming potential, (total) [CO2 eq]43.1 kg
— global warming potential, (during production) [CO2 eq]7.62 kg
— global warming potential, (during operation) [CO2 eq]36 kg
— global warming potential, (after end of life cycle) [CO2 eq]-0.544 kg
Railway application
EN 50121-3-2Yes; EMC for rail vehicles - 24 V supply of assembly: Cable length <3 m or with upstream filter for supply cable
EN 50121-4Yes; EMC for signal and telecommunications systems - 24 V supply of the assembly: with upstream filter for supply cable
EN 50124-1Yes; Railway applications - overvoltage category OV2; pollution degree PD2; rated surge voltage UNi = 0.5 kV; UNm = 24 V DC
EN 50125-1Yes; Rail vehicles - see ambient conditions
EN 50125-2Yes; Stationary electrical equipment - see ambient conditions
EN 50125-3Yes; Signal and telecommunications systems - see ambient conditions; vibrations and shocks: Application point outside of tracks (1 m to 3 m away from track)
EN 50155Yes; Rail vehicles - temperature class OT1, ST1/ST2, horizontal mounting position
EN 61373Yes; Rail vehicles - vibrations and shocks: Category 1 Class A/B
Fire protection acc. to EN 45545-2Yes; For proof of conformity, see Service & Support
Free fall
Fall height, max.0.3 m; five times, in product package
Ambient temperature during operation
horizontal installation, min.-25 °C; = Tmin (incl. condensation/frost)
horizontal installation, max.60 °C; = Tmax; +70 °C for 10 min (OT1, ST1/ST2 acc. to EN 50155)
vertical installation, min.-25 °C; = Tmin
vertical installation, max.50 °C; = Tmax
Ambient temperature during storage/transportation
min.-40 °C
max.70 °C
Altitude during operation relating to sea level
Installation altitude above sea level, max.2 000 m
Ambient air temperature-barometric pressure-altitudeTmin ... Tmax at 1 140 hPa ... 795 hPa (-1 000 m ... +2 000 m)
Relative humidity
With condensation, tested in accordance with IEC 60068-2-38, max.100 %; RH incl. condensation / frost (no commissioning in bedewed state), horizontal installation
Coolants and lubricants
— Resistant to commercially available coolants and lubricantsYes; Incl. diesel and oil droplets in the air
Use in stationary industrial systems
— to biologically active substances according to EN 60721-3-3Yes; Class 3B2 mold, fungus and dry rot spores (with the exception of fauna); Class 3B3 on request
— to chemically active substances according to EN 60721-3-3Yes; Class 3C4 (RH < 75 %) incl. salt spray acc. to EN 60068-2-52 (severity degree 3); *
— to mechanically active substances according to EN 60721-3-3Yes; Class 3S4 incl. sand, dust, *
Use on land craft, rail vehicles and special-purpose vehicles
— to biologically active substances according to EN 60721-3-5Yes; Class 5B2 mold, fungus and dry rot spores (with the exception of fauna); Class 5B3 on request
— to chemically active substances according to EN 60721-3-5Yes; Class 5C3 (RH < 75 %) incl. salt spray acc. to EN 60068-2-52 (severity degree 3); *
— to mechanically active substances according to EN 60721-3-5Yes; Class 5S3 incl. sand, dust; *
Usage in industrial process technology
— Against chemically active substances acc. to EN 60654-4Yes; Class 3 (excluding trichlorethylene)
— Environmental conditions for process, measuring and control systems acc. to ANSI/ISA-71.04Yes; Level GX group A/B (excluding trichlorethylene; harmful gas concentrations up to the limits of EN 60721-3-3 class 3C4 permissible); level LC3 (salt spray) and level LB3 (oil)
Remark
— Note regarding classification of environmental conditions acc. to EN 60721, EN 60654-4 and ANSI/ISA-71.04* The supplied plug covers must remain in place over the unused interfaces during operation!
Conformal coating
Coatings for printed circuit board assemblies acc. to EN 61086Yes; Class 2 for high reliability
Protection against fouling acc. to EN 60664-3Yes; Type 1 protection
Electronic equipment on rolling stock acc. to EN 50155Yes; Class PC2 protective coating acc. to EN 50155:2017
Military testing according to MIL-I-46058C, Amendment 7Yes; Discoloration of coating possible during service life
Qualification and Performance of Electrical Insulating Compound for Printed Board Assemblies according to IPC-CC-830AYes; Conformal coating, Class A
Connection method
required front connectorYes
Mechanics/material
plasticYes
Dimensions
Width45 mm
Height100 mm
Depth75 mm
Weights
Weight, approx.220 g
Other
Note:for use in railway applications, also observe the product information "SIPLUS extreme RAIL" A5E37661960A, Online Support article 109736776