Product Overview
Applications
The module supports temperature measurement with Type J, K, T, E, R & S, B, N, C, and TXK/XK(L) thermocouples.
Technical Summary
| Product type | SB 1231, AI 1×16 bit TC |
|---|---|
| Analog inputs | 1; Thermocouples |
| Supported thermocouples | J, K, T, E, R & S, B, N, C, TXK/XK(L) |
| Rated supply voltage | 24 V |
| Thermocouple voltage range | ±80 mV |
| Resolution with overrange | 15 bit; + sign |
| Current consumption, typ. | 5 mA |
| Backplane bus consumption, typ. | 20 mA at 5 V DC |
| Power loss, typ. | 0.5 W |
| Shielded cable | 100 m; shielded, twisted pair |
| Diagnostics | Alarms, diagnostics readout, wire-break detection, and input-status LED |
Key Features
1 analog input for thermocouples; Type J and Type K are supported.
SB 1231, AI 1×16 bit TC.
24 V DC.
Thermocouple voltage range: ±80 mV; voltage input is supported and current input is not.
15 bit with overrange including sign; measured-value smoothing is parameterizable.
Alarms, diagnostics readout, wire-break detection, and input-status LED indication are supported.
Frequently Asked Questions
What exact Siemens line item is this?
It is 6ES7231-5QA30-0XB0, SIMATIC S7-1200 SB 1231 TC, with product type designation SB 1231, AI 1×16 bit TC.
How many analog inputs and outputs does it have?
It has 1 analog input for thermocouples and 0 analog outputs.
Which thermocouple types are supported?
It supports J, K, T, E, R & S, B, N, C, and TXK/XK(L) thermocouples.
What supply and input range should be retained in a quotation?
Retain the 24 V rated supply and the ±80 mV thermocouple voltage range.
What should I provide for a project quotation?
Provide the requested quantity, destination, schedule context, and any additional BOM lines for this exact item.
