Product Description
Key Features
- Exact product identity: SIMATIC S7-1200 G2 SB 1231 TC analog input board, product type designation SB 1231, AI 4x 16-bit TC.
- Thermocouple inputs: 4 analog inputs support thermocouples J, K, T, E, R & S, B, N, C, TXK/XK(L); voltage range: ±80 mV.
- Temperature units: The technical unit for temperature measurement is adjustable between Degrees Celsius and degrees Fahrenheit.
- Input and measurement data: Rated input range is -80 mV to +80 mV, input resistance is >= 10 MOhm, and resolution with overrange is 15 bit; + sign.
- Installation and supply data: Input current from the backplane bus is 5 V DC, typ. 20 mA; shielded cable length is max. 100 m to the sensor.
- Diagnostics and protection: The board has diagnostic functions, diagnostic alarms, wire-break detection, DIAG LED status indication, and IP20 protection.
Applications
- Temperature measurement: The board supports temperature measurement using thermocouples.
Technical Summary
| Product type | SB 1231, AI 4x 16-bit TC |
|---|---|
| Analog inputs | 4; Thermocouples |
| Supported thermocouples | J, K, T, E, R & S, B, N, C, TXK/XK(L) |
| Rated input range | -80 mV to +80 mV |
| Input resistance | >= 10 MOhm |
| Input current | from backplane bus 5 V DC, typ. 20 mA |
| Resolution with overrange | 15 bit; + sign |
| Temperature unit | Degrees Celsius/degrees Fahrenheit |
| Diagnostics | Diagnostic alarm; wire break; DIAG LED |
| Protection | IP20 |
| Lifecycle | Active Product |
Frequently Asked Questions
What is the exact order number and product type?
The exact order number is 6ES7231-5QD50-0XB0. The product type is SB 1231, AI 4x 16-bit TC.
How many thermocouple inputs does the board have?
It has 4 analog thermocouple inputs.
Which thermocouple types are supported?
Supported types are J, K, T, E, R & S, B, N, C, and TXK/XK(L); voltage range: ±80 mV.
What cable length is supported for the sensor connection?
The shielded cable length is max. 100 m to the sensor.
