Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | SM 1231, AI 8×16 bit TC |
| Analog inputs | 8; Thermocouples |
| Supported thermocouple types | J, K, T, E, R & S, B, N, C, TXK/XK(L) |
| Rated voltage input range | -80 mV to +80 mV |
| Input resistance | ≥ 10 MOhm |
| Supply voltage | 24 V DC rated; 20.4 V to 28.8 V permissible |
| Resolution with overrange | 15 bit; + sign |
| Measurement principle | integrating |
| Isolation tested with | 707 V DC (type test) |
| Protection | IP20 |
Applications
- Temperature measurement: Supports temperature measurement with adjustable degrees Celsius or degrees Fahrenheit and parameterizable temperature compensation.
Key Features
- 8 thermocouple inputs: Provides 8 analog thermocouple inputs and supports types J, K, T, E, R, S, B, N, C, and TXK/XK(L).
- Input ranges: Supports voltage input and a rated voltage range of -80 mV to +80 mV; current, resistance thermometer, and resistance input ranges are not supported.
- Supply and consumption: Has a 24 V DC rated supply with a permissible range of 20.4 V to 28.8 V, typical current consumption of 15 mA, and typical backplane bus consumption of 40 mA at 5 V DC.
- Resolution and measurement: Uses integrating measurement with 15-bit resolution with overrange, including sign; integration time is parameterizable.
- Diagnostics and isolation: Has readable diagnostics, diagnostic alarms, supply-voltage monitoring, wire-break detection, a DIAG LED, and potential separation between analog inputs and the electronics power supply.
Frequently Asked Questions
1. How many thermocouple channels does 6ES7231-5QF50-0XB0 have?
It has 8 analog thermocouple inputs.
2. Which thermocouple types does the module support?
It supports J, K, T, E, R & S, B, N, C, and TXK/XK(L).
3. What supply voltage does the module require?
The rated supply voltage is 24 V DC, with a permissible range of 20.4 V to 28.8 V.
4. What resolution and measurement principle does it use?
It uses integrating measurement and provides 15-bit resolution with overrange, including sign.
5. What diagnostics are available?
It has readable diagnostics, diagnostic alarms, supply-voltage monitoring, wire-break detection, and a DIAG LED.
