Key Features
- 8 analog inputs for RTD signals: SM 1231, AI 8×16 bit RTD with 8 analog inputs for resistance thermometer measurement.
- Conformal coating: Built with conformal coating for the SIPLUS version.
- Diagnostics and alarms: Alarms, diagnostic alarm, diagnostics function, monitoring the supply voltage, and wire break detection are supported.
- Temperature range: Operating temperature: -40 °C to 70 °C; start up at -25 °C.
- Required front connector: A required front connector is specified for the connection method.
Applications
- RTD temperature measurement: Measures resistance thermometer signals from RTD sensors using the 8 analog inputs.
- Resistance input measurement: Handles resistance inputs for 150 Ω, 300 Ω, and 600 Ω measurement ranges.
- Diagnostics and maintenance monitoring: Supports diagnostic alarms, supply voltage monitoring, and wire break detection for input monitoring.
Technical Summary
| Product type designation | SM 1231, AI 8×16 bit RTD |
|---|---|
| Based on | 6ES7231-5PF32-0XB0 |
| 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 |
| Number of analog inputs | 8; Resistance thermometer |
| 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 |
| IP degree of protection | IP20 |
| Ambient temperature during operation | -40 °C; = Tmin (incl. condensation/frost); start-up @ -25 °C |
Frequently Asked Questions
What is the exact product type of Siemens 6AG1231-5PF32-2XB0?
It is a SIPLUS S7-1200 SM 1231 RTD 8AI analog input module.
How many analog inputs does this module have?
It has 8 analog inputs for resistance thermometer measurement.
What supply voltage does the module require?
Rated value (DC): 24 V.
What installation and protection details are listed for this module?
IP degree of protection: IP20. A required front connector is specified, and the module dimensions are 70 mm wide, 100 mm high, and 75 mm deep.
