Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | SM 1231, AI 4×16 bit RTD |
| Analog inputs | 4; Resistance thermometer |
| Supported resistance ranges | 0 to 150 ohms; 0 to 300 ohms; 0 to 600 ohms |
| Rated supply voltage | 24 V DC |
| Resolution | 15 bit with overrange, including sign |
| Protection | IP20 |
| Operating ambient temperature | -40 °C to 70 °C; start-up at -25 °C |
Applications
- Temperature measurement: Measures temperature using resistance thermometers with selectable degrees Celsius or degrees Fahrenheit.
- Resistance measurement: Measures resistance using the supported 0 to 150 ohms, 0 to 300 ohms, and 0 to 600 ohms input ranges.
Key Features
- RTD analog inputs: 4 analog inputs for resistance thermometers, including Pt, Ni, Cu, and LG-Ni1000 types.
- 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.
- Supply and consumption: Rated supply voltage: 24 V DC. Typical input current: 40 mA; typical backplane bus 5 V DC current: 80 mA.
- Diagnostics: Has alarms, readable diagnostics, diagnostic alarm, supply-voltage monitoring, wire-break detection, and input-status and maintenance LEDs.
- Installation and protection: Requires a front connector, has a plastic front enclosure, and provides IP20 protection.
Frequently Asked Questions
1. What input type does Siemens 6AG1231-5PD32-2XB0 use?
It has 4 analog inputs for resistance thermometers, including Pt, Ni, Cu, and LG-Ni1000 types.
2. Which resistance ranges does this RTD module support?
It supports 0 to 150 ohms, 0 to 300 ohms, and 0 to 600 ohms.
3. What supply voltage does the module require?
The rated supply voltage is 24 V DC.
4. What diagnostics are available?
It has readable diagnostics, diagnostic alarms, supply-voltage monitoring, wire-break detection, and LEDs for input status and maintenance.
