Technical Summary
| Product type designation | SM 1231, AI 4×16 bit TC |
|---|---|
| Supply voltage, rated value (DC) | 24 V |
| Current consumption, typ. | 40 mA |
| Backplane bus input current, typ. | 80 mA |
| Power loss, typ. | 1.5 W |
| Number of analog inputs | 4; Thermocouples |
| Thermocouple input | Yes; J, K, T, E, R, S, N, C, TXK/XK(L); voltage range: ±80 mV |
| Resolution with overrange (bit including sign), max. | 15 bit; + sign |
| Interference voltage suppression | 85 dB at 50 / 60 / 400 Hz |
| Common mode interference, min. | 120 dB |
| IP degree of protection | IP20 |
Key Features
4 thermocouple analog inputs
4 AI thermocouple channels for temperature signal acquisition.
4 AI thermocouple channels for temperature signal acquisition.
SM 1231, AI 4×16 bit TC
Product type designation: SM 1231, AI 4×16 bit TC.
Product type designation: SM 1231, AI 4×16 bit TC.
24 V DC supply
Rated value (DC): 24 V.
Rated value (DC): 24 V.
Thermocouple types
Thermocouple input: Yes; J, K, T, E, R, S, N, C, TXK/XK(L); voltage range: ±80 mV.
Thermocouple input: Yes; J, K, T, E, R, S, N, C, TXK/XK(L); voltage range: ±80 mV.
Diagnostics functions
Alarms: Yes. Diagnostics function: Yes; Can be read out. Diagnostic alarm: Yes.
Alarms: Yes. Diagnostics function: Yes; Can be read out. Diagnostic alarm: Yes.
Applications
Thermocouple signal acquisition
Acquisition of thermocouple temperature signals on 4 AI channels.
Acquisition of thermocouple temperature signals on 4 AI channels.
Frequently Asked Questions
What is the exact model of Siemens 6ES7231-5QD32-0XB0?
It is a SIMATIC S7-1200 SM 1231 thermocouple analog input module with the product type designation SM 1231, AI 4×16 bit TC.
How many thermocouple inputs does 6ES7231-5QD32-0XB0 have?
It has 4 analog inputs for thermocouples.
Which thermocouple types are supported by this module?
J, K, T, E, R, S, N, C, and TXK/XK(L) are supported, with a voltage range of ±80 mV.
What supply voltage does 6ES7231-5QD32-0XB0 require?
Rated value (DC): 24 V.
What protection and diagnostics information is available for this module?
IP degree of protection: IP20. Alarms: Yes. Diagnostics function: Yes; Can be read out. Diagnostic alarm: Yes.
