Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | SM 1231, AI 8×16 bit RTD |
| Analog inputs | 8; Resistance thermometer |
| Supported resistance thermometers | Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000 |
| Resistance input ranges | 0 to 150 ohms; 0 to 300 ohms; 0 to 600 ohms |
| Resolution with overrange | 15 bit; + sign |
| Rated supply voltage | 24 V DC |
| Current consumption, typ. | 40 mA |
| Front connector | Required |
| Protection | IP20 |
| Operating ambient temperature | -40 °C to 70 °C; start-up at -25 °C |
Applications
- Resistance-temperature measurement: Measures temperature using supported Pt, Ni and Cu resistance thermometers through its 8 analog inputs.
Key Features
- 8 RTD analog inputs: SM 1231, AI 8×16 bit RTD module with 8 resistance-thermometer inputs.
- Supported resistance thermometers: Supports Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100 and LG-Ni1000.
- Resistance input ranges: Supports 0 to 150 ohms, 0 to 300 ohms and 0 to 600 ohms.
- Resolution and measurement: Integrating measurement principle with 15 bit resolution with overrange including sign; temperature measurement can use Degrees Celsius/degrees Fahrenheit.
- Diagnostics and protection: Has diagnostic alarms, supply-voltage monitoring, wire-break detection and input and maintenance LEDs. Protection: IP20.
- Supply and connection: Rated supply voltage: 24 V DC. Requires a front connector; dimensions are 70 mm x 100 mm x 75 mm and weight is approximately 220 g.
Frequently Asked Questions
1. How many RTD inputs does Siemens 6AG1231-5PF32-2XB0 have?
It has 8 analog resistance-thermometer inputs.
2. Which resistance thermometers are supported?
It supports Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100 and LG-Ni1000.
3. What supply and connection details should be verified before inquiry?
The rated supply voltage is 24 V DC, and a front connector is required.
