Product information
Overview
Applications
- Thermocouple temperature measurement: Supports temperature measurement using thermocouple inputs with adjustable degrees Celsius or degrees Fahrenheit.
Key Features
- Thermocouple input capacity: Has 8 analog thermocouple inputs with a 15 bit resolution with overrange, including sign.
- Supported thermocouple types: Supports J, K, T, E, R & S, B, N, C and TXK/XK(L); the voltage range is ±80 mV.
- Supply voltage: Rated supply voltage is 24 V DC, with a permissible range from 20.4 V to 28.8 V DC.
- Configurable measurement: Has parameterizable temperature compensation, integration time and measured-value smoothing with None, low, Medium and High steps.
- Diagnostics: Provides supply-voltage monitoring, wire-break detection, diagnostic alarms, readable diagnostics and DIAG LED indication.
- Protection and isolation: Has IP20 protection, potential separation between the channels and electronics power supply, and isolation tested with 707 V DC (type test).
Technical Summary
| Product type | SM 1231, AI 8×16 bit TC |
|---|---|
| Analog inputs | 8; Thermocouples |
| Supported thermocouples | J, K, T, E, R & S, B, N, C, TXK/XK(L) |
| Rated supply voltage | 24 V DC |
| Permissible supply voltage | 20.4 V to 28.8 V DC |
| Voltage range | -80 mV to +80 mV |
| Resolution with overrange | 15 bit; + sign |
| Input resistance | >= 10 MOhm |
| IP degree of protection | IP20 |
Frequently Asked Questions
What is the exact Siemens model and module type?
It is Siemens 6ES7231-5QF50-0XB0, a SIMATIC S7-1200 G2 SM 1231 TC module with the product type designation SM 1231, AI 8×16 bit TC.
How many thermocouple inputs does the module have?
It has 8 analog thermocouple inputs and supports J, K, T, E, R & S, B, N, C and TXK/XK(L).
What supply voltage does it require?
The rated supply voltage is 24 V DC, with a permissible range from 20.4 V to 28.8 V DC.
What protection and diagnostic functions are provided?
It has IP20 protection, supply-voltage monitoring, wire-break detection, diagnostic alarms, readable diagnostics and DIAG LED indication.
How can I request a quotation for this module?
Send the required quantity, destination and project-list context for an MRO or project quotation.
