Siemens S7-200 Smart 4AI RTD Module

 The Siemens S7-200 Smart 4AI RTD Module is designed for reliable industrial applications. It features a polished surface finish for durability and operates at 50 Hz with a 24V rated voltage, suitable for single-phase systems.

It comes in a standard size with a sleek black finish, making it suitable for various industrial environments. The module also includes a 1-year warranty for added assurance. 

SIMATIC S7-1200 Analog Input Module SM 1231 RTD

Article No: 6ES7231-5PD32-0XB0
Type: AI 4x16 bit RTD (Resistance Temperature Detector)

General Information

• Product type designation: SM 1231, AI 4x16 bit RTD

• Supply voltage: 24 V DC

• Current consumption:

  • Typical: 40 mA

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

• Power loss: typ. 1.5 W

Analog Inputs

• Number of inputs: 4 (Resistance thermometer)

• Permissible voltage for voltage input: 35 V

• Temperature unit: C / F (adjustable)

• Input types:

  • Resistance thermometer (RTD): Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000

  • Resistance: 150 , 300 , 600

• Measurement principle: Integrating

• Resolution: 15 bit (including sign)

• Interference suppression: 85 dB at 50 / 60 / 400 Hz

Accuracy

• Temperature error:

  • 0.1% at 25 C

  • 0.2% up to 55 C

• Repeat accuracy (25 C): 0.05%

• Common mode interference suppression: min. 120 dB

Diagnostics & Status

• Alarms: Yes

• Monitoring functions: Supply voltage, wire-break

• LEDs: Status of inputs, maintenance

Protection

• Degree of protection: IP20

• Front connector: Required

Ambient Conditions

• Operation temperature: -20 60 C

  • Vertical installation max: 50 C

• Storage/transport: -40 70 C

• Air pressure (operation): 795 1080 hPa

• Air pressure (storage/transport): 660 1080 hPa

• Relative humidity: max. 95% at 25 C, no condensation

• Pollutant concentrations: SO < 0.5 ppm, HS < 0.1 ppm (RH < 60%)

Mechanics

• Enclosure material: Plastic

• Dimensions: W 45 H 100 D 75 mm

• Weight: 220 g

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