Product Overview
Technical Summary
| Product type designation | SM 1231, AI 8×16 bit TC |
|---|---|
| Based on | 6ES7231-5QF32-0XB0 |
| Analog inputs | 4; Thermocouples |
| Thermocouple voltage range | ±80 mV |
| Rated supply voltage | 24 V |
| Input resistance | ≥1 MOhm for -80 mV to +80 mV |
| Operating temperature | -20 °C to 60 °C; start-up at 0 °C |
| Protection | IP20 |
| Conformal coating | EN 61086 Class 2 for high reliability |
| Required front connector | Yes |
Key Features
- Product designation: SM 1231, AI 8×16 bit TC.
- Thermocouple inputs: 4 analog inputs support thermocouples J, K, T, E, R, S, B, N, C, and TXK/XK(L).
- Rated supply voltage: 24 V DC.
- Conformal coating: Conformal coating for printed circuit board assemblies according to EN 61086, Class 2 for high reliability.
- Operating temperature: -20 °C to 60 °C; at -20 °C, this includes condensation/frost and start-up is at 0 °C.
- Protection and dimensions: IP20; width 45 mm, height 100 mm, depth 75 mm.
Applications
- Temperature measurement: The module supports temperature measurement using thermocouples with adjustable degrees Celsius or degrees Fahrenheit.
Frequently Asked Questions
What does Siemens order number 6AG1231-5QF32-4XB0 identify?
It identifies a SIPLUS S7-1200 SM 1231 thermocouple module with 4 analog inputs, conformal coating, and -20 °C to 60 °C operation.
Which specifications distinguish this MLFB variant?
Key identifying specifications are the SM 1231, AI 8×16 bit TC designation, 24 V DC rated supply, 4 thermocouple inputs, conformal coating, and IP20 protection.
What should be checked before requesting a quotation?
Check the complete 6AG1231-5QF32-4XB0 code, the product nameplate, required quantity, and destination.
