About SIMATIC S7-1200, Analog input, SM 1231, 4 AI, 6ES7231-4HD32-0XB0

Number of Channels 4 Brand Siemens Usage / Application Industrial Network Type 4G Model Name/ Number 6ES7231-4HD32-0XB0 SIMATIC S7-1200, Analog input, SM 1231, 4 AI, +/-10 V, +/-5 V, +/-2.5 V, or 0-20 mA/4-20 mA, 12 bit+sign (13 bit ADC) siemens expansion module

Data Sheet 6ES7231-4HD32-0XB0

SIMATIC S7-1200, Analog Input Module SM 1231 (4 AI), 10 V / 5 V / 2.5 V / 020 mA / 420 mA, 12-bit + sign (13-bit ADC)

General Information

• Product type: SM 1231, AI 413-bit

• Supply voltage: 24 V DC

Input Current

• Current consumption (typ.): 45 mA

• From backplane bus (5 V DC): 80 mA typ.

Power Loss

• Typical power loss: 1.5 W

Analog Inputs

• Number of inputs: 4 (current or voltage differential inputs)

• Max permissible voltage (destruction limit): 35 V

• Max permissible current (destruction limit): 40 mA

• Max cycle time (all channels): 625 s

Supported Input Ranges

Voltage Inputs

• 10 V Input resistance 9 M

• 5 V Input resistance 9 M

• 2.5 V Input resistance 9 M

Current Inputs

• 020 mA Input resistance 280

• 420 mA Input resistance 280

Analog Value Processing

• Resolution: 12-bit + sign (13-bit max)

• Integration time: Parameterizable

• Interference suppression:

  • 40 dB

  • DC to 60 V at 50/60 Hz

Smoothing (parameterizable):

• None

• Low

• Medium

• High

Accuracy / Errors

• Temperature error (relative):

  • 0.1% at 25 C

  • 0.2% up to 55 C

• Basic error limit:

  • Voltage: 0.1%

  • Current: 0.1%

• Common-mode voltage max.: 12 V

Diagnostics / Status

• Alarms: Yes

• Diagnostic alarms: Yes

• Monitoring: Supply voltage, wire break

• LED indicators: Input status, maintenance

Protection

• Degree of protection: IP20

Approvals

CE, CSA, UL, cULus, FM, RCM, KC, Marine approval

Environmental Data

• Free fall: 0.3 m (in packaging), 5 times

• Operating temperature:

  • 20 +60 C (horizontal)

  • 20 +50 C (vertical)

• Storage/transport temperature: 40 +70 C

• Operating air pressure: 7951080 hPa

• Humidity: Up to 95%, no condensation

• Pollutants: SO < 0.5 ppm, HS < 0.1 ppm

Mechanical Details

• Front connector required: Yes

• Material: Plastic front housing

• Dimensions:

  • Width: 45 mm

  • Height: 100 mm

  • Depth: 75 mm

• Weight: approx. 180 g 

Technical Details