SIEMENS S7-1200 PLC MODULE 6ES7231-4HF32-0XB0

About SIEMENS S7-1200 PLC MODULE 6ES7231-4HF32-0XB0

Siemens SIMATIC S7-1200 Analog Input Module SM 1231

8 AI, +/-10 V, +/-5 V, +/-2.5 V, 0-20 mA / 4-20 mA, 12-bit + sign (13-bit ADC)

General Information

• Product Type: SM 1231, AI 8x13 bit

• Supply Voltage: 24 V DC

• Current Consumption: Typical 60 mA, from backplane bus 5 V DC: 90 mA

• Power Loss: Typical 1.5 W

Analog Inputs

• Number of Inputs: 8 (Current or Voltage differential inputs)

• Voltage Input Limit: Max 35 V

• Current Input Limit: Max 40 mA

• Cycle Time (all channels): Max 625 s

Input Ranges:

Analog Value Generation

• Resolution: 12-bit + sign

• Integration Time: Parameterizable

• Interference Voltage Suppression: 40 dB (DC to 60 V, 50/60 Hz)

• Smoothing of Measured Values: Parameterizable (None, Low, Medium, High)

Accuracy / Errors

• Temperature Error: 0.1% at 25C; 0.2% up to 55C

• Basic Error Limit: 0.1% for voltage & current

• Common Mode Voltage: Max 12 V

Diagnostics / Status

• Alarms: Yes, Diagnostic alarm

• Monitoring: Supply voltage, Wire-break detection

• LEDs: Input status, Maintenance

Protection & Standards

• IP Degree: IP20

• Approvals: CE, CSA, UL, cULus, FM, RCM, KC, Marine

• Environmental Declaration: Yes

• Global Warming Potential:

  • Total: 43.1 kg CO eq

  • Production: 7.62 kg CO eq

  • Operation: 36 kg CO eq

  • End of life: -0.544 kg CO eq

Ambient Conditions

• Operating Temperature: -20C to 60C (horizontal), -20C to 50C (vertical)

• Storage Temperature: -40C to 70C

• Air Pressure: 7951080 hPa (operation), 6601080 hPa (storage)

• Relative Humidity: Max 95% (without condensation)

• Pollutant Concentrations: SO <0.5 ppm, HS <0.1 ppm

Mechanics / Dimensions

• Front Material: Plastic

• Width: 45 mm

• Height: 100 mm

• Depth: 75 mm

• Weight: 180 g

• Required Front Connector: Yes 

Technical Details