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Siemens 6ES7231-4HF50-0XB0

SIMATIC S7-1200 G2: SM 1231 analog input, 8 AI; inputs: 8x AI 14 bit ADC (+/-10 V, +/-5 V, +/-2.5 V or 0-20 mA/4-20 mA)

SiemensMFR # 6ES7231-4HF50-0XB0SKU # YLSOD3YAEN57K1P

Product type designationSM 1231, AI 8x 14 bit

Rated value (DC)24 V

permissible range, lower limit (DC)20.4 V

permissible range, upper limit (DC)28.8 V

Current consumption, typ.45 mA

from backplane bus 5 V DC, typ.75 mA

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About This Product

SIMATIC S7-1200 G2: SM 1231 analog input, 8 AI; inputs: 8x AI 14 bit ADC (+/-10 V, +/-5 V, +/-2.5 V or 0-20 mA/4-20 mA)

Siemens 6ES7231-4HF50-0XB0

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Product selection and compatibility support from our technical team
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Specifications

General information

Product type designationSM 1231, AI 8x 14 bit

Supply voltage

Rated value (DC)24 V

permissible range, lower limit (DC)20.4 V

permissible range, upper limit (DC)28.8 V

Input current

Current consumption, typ.45 mA

from backplane bus 5 V DC, typ.75 mA

Power loss

Power loss, typ.2.5 W

Analog inputs

Number of analog inputs8; 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.1.25 ms; at 400 Hz rejection

Input ranges

VoltageYes; ±10V, ±5V, ±2.5V

CurrentYes; 4 to 20 mA, 0 to 20 mA

ThermocoupleNo

Resistance thermometerNo

ResistanceNo

Input ranges (rated values), voltages

-10 V to +10 VYes

— Input resistance (-10 V to +10 V)≥1 MOhm

-2.5 V to +2.5 VYes

— Input resistance (-2.5 V to +2.5 V)≥1 MOhm

-5 V to +5 VYes

— Input resistance (-5 V to +5 V)≥1 MOhm

Input ranges (rated values), currents

0 to 20 mAYes

— Input resistance (0 to 20 mA)< 290 Ω, > 270 Ω

4 mA to 20 mAYes

— Input resistance (4 mA to 20 mA)< 290 Ω, > 270 Ω

Cable length

shielded, max.100 m; shielded, twisted pair

Analog value generation for the inputs

Measurement principlesuccessive approximation

Integration and conversion time/resolution per channel

Resolution with overrange (bit including sign), max.13 bit; + sign

Integration time, parameterizableYes

Interference voltage suppression for interference frequency f1 in Hz40 dB, DC to 60 Hz

Smoothing of measured values

parameterizableYes

Step: NoneYes

Step: lowYes

Step: MediumYes

Step: HighYes

Errors/accuracies

Temperature error (relative to input range), (+/-)25 °C ±0.1 % / -20 °C to 60 °C ±0.2 % of the full-scale deflection

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

Diagnostics functionYes

Alarms

Diagnostic alarmYes

Diagnoses

Monitoring the supply voltageYes

Wire breakYes

Diagnostics indication LED

DIAG LEDYes

for status of the inputsYes

Degree and class of protection

IP degree of protectionIP20

Standards, approvals, certificates

Siemens Eco Profile (SEP)Siemens EcoTech

CE markYes

CSA approvalNo

UL approvalYes

cULusYes

FM approvalNo

RCM (formerly C-TICK)Yes

KC approvalYes

Marine approvalNo

Ecological footprint

environmental product declarationYes; type 2 acc. to ISO 14021

Global warming potential

— global warming potential, (total) [CO2 eq]32.2 kg

— global warming potential, (during production) [CO2 eq]7.96 kg

— global warming potential, (during operation) [CO2 eq]24.5 kg

— global warming potential, (after end of life cycle) [CO2 eq]-0.358 kg

Free fall

Fall height, max.0.3 m; five times, in product package

Ambient temperature during operation

min.-20 °C

max.40 °C; at max. voltages and max. specifications

horizontal installation, min.-20 °C

horizontal installation, max.60 °C; at rated voltages, 50 % of max. specification and alternate IO active

vertical installation, min.-20 °C

vertical installation, max.50 °C; at rated voltages, 50 % of max. specification and alternate IO active

Ambient temperature during storage/transportation

min.-40 °C

max.70 °C

Air pressure acc. to IEC 60068-2-13

Operation, min.540 hPa

Operation, max.1 140 hPa

Storage/transport, min.540 hPa

Storage/transport, max.1 140 hPa

Altitude during operation relating to sea level

Installation altitude, min.-1 000 m

Installation altitude, max.5 000 m; Restrictions for installation altitudes > 2 000 m, see manual

Relative humidity

Operation at 25 ℃ without condensation, max.95 %

Vibrations

Vibration resistance during operation acc. to IEC 60068-2-63.5 mm from 5 - 8.4 Hz, 1g from 8.4 - 150 Hz

Operation, tested according to IEC 60068-2-6Yes

Shock testing

tested according to IEC 60068-2-27Yes; IEC 68, Part 2-27 half-sine: strength of the shock 15 g (peak value), duration 11 ms

Pollutant concentrations

SO2 at RH < 60% without condensationS02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60 % condensation-free

Connection method

required front connectorNo

Mechanics/material

PlasticYes

Dimensions

Width30 mm

Height125 mm

Depth100 mm

Weights

Weight, approx.175 g

Accessories 2

Genuine accessories that can be used with the Siemens 6ES7231-4HF50-0XB0 motor and are supplied separately are listed below. Click a code to open the accessory page and see the other compatible motors.