Product Description
Key Features
- Exact product identity: Product type designation: SM 1231, AI 4×16 bit TC.
- Thermocouple input capacity: 4 analog inputs for thermocouples; supported types include J, K, T, E, R, S, N, C, and TXK/XK(L).
- Rated supply: Rated supply voltage: 24 V DC.
- Input measurement range: Thermocouple voltage range: ±80 mV; input resistance for -80 mV to +80 mV: ≥1 MOhm.
- Diagnostics and alarms: Has alarms, readable diagnostics, diagnostic alarms, supply-voltage monitoring, wire-break detection, and input-status and maintenance LEDs.
- Protection and lifecycle: IP degree of protection: IP20. Product lifecycle: Active Product.
Applications
- Thermocouple temperature measurement: Provides analog temperature measurement from J, K, T, E, R, S, N, C, and TXK/XK(L) thermocouples.
Technical Summary
| Product type designation | SM 1231, AI 4×16 bit TC |
|---|---|
| Analog inputs | 4; Thermocouples |
| Rated supply voltage | 24 V |
| Thermocouple voltage range | ±80 mV |
| Input resistance (-80 mV to +80 mV) | ≥1 MOhm |
| Resolution with overrange (bit including sign), max. | 15 bit; + sign |
| Measurement principle | integrating |
| Current consumption, typ. | 40 mA |
| Power loss, typ. | 1.5 W |
| IP degree of protection | IP20 |
| Product lifecycle | Active Product |
Frequently Asked Questions
What exact Siemens order number should be verified?
Verify order number 6ES7231-5QD32-0XB0 and product type SM 1231, AI 4×16 bit TC.
How many thermocouple inputs does this module have?
It has 4 analog thermocouple inputs.
Which thermocouple types are supported?
Supported types are J, K, T, E, R, S, N, C, and TXK/XK(L).
What supply voltage and protection rating are specified?
The rated supply voltage is 24 V DC, and the IP degree of protection is IP20.
