SIEMENS PLC Module 6ES7231-4HF32-0XB0

The SIEMENS 6ES7231-4HF32-0XB0 is a compact and versatile programmable logic controller (PLC) designed for industrial automation applications.

Key Specifications:

• Rated Voltage: 24V DC

• Rated Current: 60 mA

• Power Loss: 1.5 W

• Dimensions (L × W × H): 45 × 100 × 75 mm

• Weight: 180 g

• Operating Temperature: -20°C to +60°C

• Humidity Tolerance: Up to 95%

• Frequency: 50/60 Hz

• Mounting: DIN rail

• Protection Level: IP20

• Color: Black

Features:

• Compact and lightweight design for space-saving installation

• Durable construction with IP20 protection against dust

• Reliable performance in varied temperature and humidity conditions

• Easy DIN-rail mounting for efficient setup

• Ideal for precise and reliable automation of complex processes

This PLC module is a robust and efficient solution for modern industrial automation systems.

Siemens SM 1231 – Analog Input Module (6ES7231-4HF32-0XB0)

SIMATIC S7-1200 | Analog Input | 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 designation: SM 1231, AI 8×13 bit

• Supply voltage: 24 V DC

• Current consumption:

  • From 24 V: 60 mA (typ.)

  • From backplane bus (5 V DC): 90 mA (typ.)

• Power loss: 1.5 W (typ.)

Analog Inputs

• Number of inputs: 8 (current or voltage differential inputs)

• Max. permissible input values:

  • Voltage: 35 V

  • Current: 40 mA

• Cycle time (all channels): max. 625 µs

Supported Input Ranges

Voltage:

• ±10 V (Input resistance ≥ 9 MΩ)

• ±5 V (Input resistance ≥ 9 MΩ)

• ±2.5 V (Input resistance ≥ 9 MΩ)

Current:

• 0–20 mA (Input resistance 280 Ω)

• 4–20 mA (Input resistance 280 Ω)

Other signals:

• Thermocouple: No

• RTD: No

• Resistance: Yes

Analog Value Processing

• Resolution: 12-bit + sign (max.)

• Integration time: Parameterizable

• Interference suppression:

  • 40 dB, DC to 60 V

  • For 50/60 Hz interference

Smoothing Options

• None

• Low

• Medium

• High

Accuracy & Errors

• Temperature error:

  • ±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 alarm: Yes

• Diagnostics:

  • Supply voltage monitoring

  • Wire-break detection

• LEDs:

  • Input status

  • Maintenance

Environmental Protection

• IP rating: IP20

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

• Environmental product declaration: Yes

Global Warming Potential

• Total: 43.1 kg CO₂

• Production: 7.62 kg CO₂

• Operation: 36 kg CO₂

• End of life: -0.544 kg CO₂

Ambient Conditions

• Free fall: 0.3 m (in packaging)

• Operating temperature:

  • Horizontal: -20 to +60°C

  • Vertical: -20 to +50°C

• Storage/transport temperature: -40 to +70°C

• Air pressure:

  • Operation: 795–1080 hPa

  • Storage/transport: 660–1080 hPa

• Relative humidity: 95% (non-condensing)

• Pollutant limits:

  • SO₂ < 0.5 ppm

  • H₂S < 0.1 ppm

Mechanical Data

• Required front connector: Yes

• Material: Plastic

• Dimensions:

  • Width: 45 mm

  • Height: 100 mm

  • Depth: 75 mm

• Weight: approx. 180 g 

Technical Details 

FAQs of SIEMENS PLC MODULES 6ES7231 4HF32 0XB0: