Product Overview
Technical Summary
| Product designation | SM 1231, AI 4×16 bit RTD |
|---|---|
| Order basis | 6ES7231-5PD32-0XB0 |
| Analog inputs | 4; resistance thermometer |
| Rated supply voltage | 24 V DC |
| Typical input current | 40 mA |
| Typical backplane bus current | 80 mA from backplane bus 5 V DC |
| Resolution | 15 bit; + sign |
| Temperature measurement unit | Degrees Celsius/degrees Fahrenheit |
| Protection | IP20 |
| Operating temperature | -25 °C to 60 °C horizontal; -25 °C to 50 °C vertical |
Key Features
- Product designation: SM 1231, AI 4×16 bit RTD module based on 6ES7231-5PD32-0XB0.
- Analog inputs: 4 analog inputs for resistance thermometers.
- Rated supply voltage: 24 V DC.
- Supported resistance thermometers: Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, and LG-Ni1000.
- Conformal coating: Conformal coating for printed circuit board assemblies according to EN 61086, Class 2 for high reliability.
- Protection and dimensions: IP20; 45 mm wide, 100 mm high, and 75 mm deep.
Frequently Asked Questions
What identifies Siemens 6AG2231-5PD32-1XB0?
It identifies a SIPLUS S7-1200 SM 1231 RTD module, designated SM 1231, AI 4×16 bit RTD.
Which specifications distinguish this MLFB variant?
The listed variant has 4 resistance-thermometer inputs, a 24 V DC rated supply, conformal coating, and IP20 protection.
What complete code and nameplate details should be checked?
Check the complete order number 6AG2231-5PD32-1XB0 and the product designation SM 1231, AI 4×16 bit RTD.
What information is needed for a quotation?
Provide the required quantity and destination together with the complete order number.
