Product Overview
Technical Summary
| Product | SM 1231, AI 8×16 bit TC |
|---|---|
| Module family | SIMATIC S7-1200 |
| Analog inputs | 8 thermocouples |
| Supply voltage | 24 V DC |
| Voltage input range | -80 mV to +80 mV |
| Input resistance | ≥1 MOhm for -80 mV to +80 mV |
| Thermocouple types | J, K, T, E, R, S, B, N, C, TXK/XK(L) |
| Resolution | 15 bit with overrange, including sign |
| Diagnostics | Supply-voltage monitoring and wire-break detection |
| Protection | IP20 |
Key Features
- Product designation: SM 1231, AI 8×16 bit TC analog input module.
- Analog inputs: 8 thermocouple inputs.
- Supply voltage: Rated value: 24 V DC.
- Thermocouple input range: Supports types J, K, T, E, R, S, B, N, C, and TXK/XK(L); voltage range: ±80 mV.
- Measurement resolution: 15 bit with overrange, including sign.
- Diagnostics and protection: Diagnostics, diagnostic alarms, supply-voltage monitoring, wire-break detection, and IP20 protection.
Frequently Asked Questions
Which specifications distinguish Siemens 6ES7231-5QF32-0XB0?
The code identifies an SM 1231, AI 8×16 bit TC module with 8 thermocouple inputs, 24 V DC supply, and -80 mV to +80 mV voltage range.
Which thermocouple types does this module support?
It supports types J, K, T, E, R, S, B, N, C, and TXK/XK(L).
What should be checked against the nameplate before ordering?
Check the complete order number 6ES7231-5QF32-0XB0 and the SM 1231, AI 8×16 bit TC designation.
What information is needed for a quotation?
Provide the required quantity and destination together with the complete order number.
