Product Overview
Technical Summary
| Product code | 6AG1231-5PF32-2XB0 |
|---|---|
| Product type | SM 1231, AI 8×16 bit RTD |
| Based on | 6ES7231-5PF32-0XB0 |
| Analog inputs | 8; Resistance thermometer |
| Rated supply voltage | 24 V DC |
| Supported resistance thermometers | Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000 |
| Resolution with overrange | 15 bit; + sign |
| Ambient operation | -40 °C to 70 °C; start-up at -25 °C |
| Protection | IP20 |
| Conformal coating | Yes; Class 2 for high reliability |
Key Features
- Product designation: SM 1231, AI 8×16 bit RTD module based on 6ES7231-5PF32-0XB0.
- Analog inputs: 8 analog inputs for resistance thermometers, including Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, and LG-Ni1000.
- Supply and consumption: Rated supply voltage: 24 V DC; typical input current: 40 mA; typical backplane bus current at 5 V DC: 80 mA.
- Measurement resolution: Maximum resolution with overrange: 15 bit; + sign. Measurement units are adjustable in degrees Celsius or degrees Fahrenheit.
- Environmental variant: Conformal coating; ambient operation from -40 °C to 70 °C, with start-up at -25 °C.
- Protection and dimensions: IP20 protection; 70 mm width, 100 mm height, and 75 mm depth; required front connector.
Applications
- Stationary industrial systems: Use with biologically, chemically, and mechanically active substances according to the supplied EN 60721-3-3 classifications.
- Ships and marine environments: Use on ships or at sea with the supplied EN 60721-3-6 classifications for biologically, chemically, and mechanically active substances.
- Industrial process technology: Use against chemically active substances according to EN 60654-4 and under process, measuring, and control system conditions according to ANSI/ISA-71.04.
Frequently Asked Questions
What product does Siemens order number 6AG1231-5PF32-2XB0 identify?
It identifies a SIPLUS S7-1200 SM 1231 RTD module with 8 analog resistance-thermometer inputs and 16-bit RTD designation.
Which specifications distinguish this exact MLFB variant?
The supplied variant has conformal coating, -40 °C to 70 °C ambient operation, start-up at -25 °C, IP20 protection, and is based on 6ES7231-5PF32-0XB0.
What should be checked before ordering this module?
Check the complete code 6AG1231-5PF32-2XB0, the SM 1231 RTD designation, 8 resistance-thermometer inputs, required front connector, and the supplied dimensions.
What information is needed for a quotation?
Provide the required quantity and destination together with the complete order number 6AG1231-5PF32-2XB0.
