General information
Product type designation SM 1231, AI 4x13 bit
Supply voltage
Rated value (DC) 24 V
Input current
Current consumption, typ. 45 mA
from backplane bus 5 V DC, typ. 80 mA
Power loss
Power loss, typ. 1.5 W
Analog inputs
Number of analog inputs 4; 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
Voltage Yes; ±10V, ±5V, ±2.5V
Current Yes; 4 to 20 mA, 0 to 20 mA
Thermocouple No
Resistance thermometer No
Resistance No
Input ranges (rated values), voltages
-10 V to +10 V Yes
— Input resistance (-10 V to +10 V) ≥9 MOhm
-2.5 V to +2.5 V Yes
— Input resistance (-2.5 V to +2.5 V) ≥9 MOhm
-5 V to +5 V Yes
— Input resistance (-5 V to +5 V) ≥9 MOhm
Input ranges (rated values), currents
0 to 20 mA Yes
— Input resistance (0 to 20 mA) 280 Ω
4 mA to 20 mA Yes
— Input resistance (4 mA to 20 mA) 280 Ω
Analog value generation for the inputs
Integration and conversion time/resolution per channel
Resolution with overrange (bit including sign), max. 12 bit; + sign
Integration time, parameterizable Yes
Interference voltage suppression for interference frequency f1 in Hz 40 dB, DC to 60 V for interference frequency 50 / 60 Hz
Smoothing of measured values
parameterizable Yes
Step: None Yes
Step: low Yes
Step: Medium Yes
Step: High Yes
Errors/accuracies
Temperature error (relative to input range), (+/-) 25 °C ±0.1%, to 55 °C ±0.2% 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 %
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency
Common mode voltage, max. 12 V
Interrupts/diagnostics/status information
Alarms Yes
Diagnostics function Yes
Alarms
Diagnostic alarm Yes
Diagnoses
Monitoring the supply voltage Yes
Wire-break Yes
Diagnostics indication LED
for status of the inputs Yes
for maintenance Yes
Degree and class of protection
IP degree of protection IP20
Standards, approvals, certificates
CE mark Yes
CSA approval Yes
UL approval Yes
cULus Yes
FM approval Yes
RCM (formerly C-TICK) Yes
KC approval Yes
Marine approval Yes
Ecological footprint
environmental product declaration Yes
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
Ambient conditions
Free fall
Fall height, max. 0.3 m; five times, in product package
Ambient temperature during operation
min. -20 °C
max. 60 °C
horizontal installation, min. -20 °C
horizontal installation, max. 60 °C
vertical installation, min. -20 °C
vertical installation, max. 50 °C
Ambient temperature during storage/transportation
min. -40 °C
max. 70 °C
Air pressure acc. to IEC 60068-2-13
Operation, min. 795 hPa
Operation, max. 1 080 hPa
Storage/transport, min. 660 hPa
Storage/transport, max. 1 080 hPa
Relative humidity
Operation at 25 grC without condensation, max. 95 %
Pollutant concentrations
SO2 at RH 60% without condensation S02: 0.5 ppm; H2S: 0.1 ppm; RH 60 % condensation-free
connection method
required front connector Yes
Mechanics/material
Enclosure material (front)
Plastic Yes
Dimensions
Width 45 mm
Height 100 mm
Depth 75 mm
Weights
Weight, approx. 180 g
Classifications
Version Classification
eClass 14 27-24-22-01
eClass 12 27-24-22-01
eClass 9.1 27-24-22-01
eClass 9 27-24-22-01
eClass 8 27-24-22-01
eClass 7.1 27-24-22-01
eClass 6 27-24-22-01
ETIM 10 EC001420
ETIM 9 EC001420
ETIM 8 EC001420
ETIM 7 EC001420
IDEA 4 3562
UNSPSC 15 32-15-17-05
Approvals / Certificates
General Product Approval
EU declaration of conformity

UK Declaration of Conformity

Manufacturer Declaration

Miscellaneous

UL

Metrological Approval

General Product Approval EMV For use in hazardous locations
RCM

RCM

ATEX

IECEx

FM

UL

For use in hazardous locations Maritime application
Miscellaneous

CCC-Ex

BV (Bureau Veritas)

DNV (Det Norske Veritas)

RINA (Registro Italiano Navale)

RMRS (Russian Maritime Register)

Maritime application Environment
CCS (China Classification Society)

KR (Korean Register of Shipping)

EPD Typ II/III (with life cylce assessment)