Key Features
- 8 analog inputs for RTD signals: Analog input module with 8 channels for resistance thermometer measurement.
- SM 1231, AI 8×16 bit RTD: Product type designation: SM 1231, AI 8×16 bit RTD.
- 24 V DC supply: Rated value (DC): 24 V.
- Diagnostics and alarms: Alarms: Yes. Diagnostic alarm: Yes. Diagnostics function: Yes; Can be read out.
- IP20 protection: IP degree of protection: IP20.
Technical Summary
| Product type designation | SM 1231, AI 8×16 bit RTD |
|---|---|
| Number of analog inputs | 8; Resistance thermometer |
| Rated value (DC) | 24 V |
| Current consumption, typ. | 40 mA |
| from backplane bus 5 V DC, typ. | 80 mA |
| Power loss, typ. | 1.5 W |
| Resistance thermometer support | Yes; Resistance-type transmitter: Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000 |
| Resistance support | Yes; 150 Ω, 300 Ω, 600 Ω |
| Resolution with overrange (bit including sign), max. | 15 bit; + sign |
| Interference voltage suppression for interference frequency f1 in Hz | 85 dB at 50 / 60 / 400 Hz |
| Diagnostics function | Yes; Can be read out |
| IP degree of protection | IP20 |
Applications
- Resistance thermometer measurement: Input module for reading RTD signals from resistance thermometers.
Frequently Asked Questions
What is Siemens 6ES7231-5PF32-0XB0?
It is a SIMATIC S7-1200 analog input module, SM 1231 RTD, with 8xAI RTD.
What are the key input and supply specifications of 6ES7231-5PF32-0XB0?
It has 8 analog inputs for resistance thermometers and a rated value (DC) of 24 V.
Which RTD sensor types are supported by 6ES7231-5PF32-0XB0?
Supported resistance-type transmitters include Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, and LG-Ni1000.
What diagnostics are available on 6ES7231-5PF32-0XB0?
It supports alarms, a diagnostic alarm, a diagnostics function that can be read out, monitoring the supply voltage, and wire break detection.
What protection rating does 6ES7231-5PF32-0XB0 have?
The IP degree of protection is IP20.
