Key Features
- 4 analog inputs for resistance thermometers: AI 4x RTD module with 4 analog inputs for resistance thermometer signals.
- Pt100 and Pt1000 support: Supports Pt100 and Pt1000 resistance thermometers.
- SM 1231 RTD 4x 16 bit: Product type designation: SM 1231 RTD 4x 16 bit.
- Diagnostics functions: Alarms, diagnostic alarm, diagnostics function, monitoring the supply voltage, and wire break detection.
- 24 V DC supply: Rated value (DC): 24 V; permissible range: 20.4 V to 28.8 V.
- Compact module format: Packaging dimensions: 150,00 x 47,00 x 110,00 mm; net weight: 0,169 Kg.
Applications
- Resistance thermometer temperature measurement: For measuring temperature with Pt100, Pt1000, and other supported resistance thermometer signals.
- Resistance signal acquisition: For reading resistance inputs of 0 to 150 ohms, 0 to 300 ohms, or 0 to 600 ohms.
Technical Summary
| Product type designation | SM 1231 RTD 4x 16 bit |
|---|---|
| Number of analog inputs | 4; Resistance thermometer |
| Resistance thermometer support | Yes; Resistance-type transmitter: Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000 |
| 24 V DC supply | Rated value (DC): 24 V |
| Supply voltage range | 20.4 V to 28.8 V |
| Current consumption, typ. | 15 mA |
| Backplane bus current, typ. | 65 mA |
| Power loss, typ. | 0.6 W |
| Resolution with overrange | 15 bit; + sign |
| Integration time | Parameterizable |
| Interference voltage suppression | 85 dB at 10 / 50 / 60 / 400 Hz |
| Repeat accuracy | 0.05 % |
Frequently Asked Questions
What is the Siemens 6ES7231-5PD50-0XB0?
It is an SM 1231 RTD module for SIMATIC S7-1200 G2 with 4 analog inputs for resistance thermometer signals.
Which temperature sensors does 6ES7231-5PD50-0XB0 support?
It supports Pt100 and Pt1000, and the resistance thermometer input range also includes Pt10, Pt50, Pt200, Pt500, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, and LG-Ni1000.
What supply voltage does the module require?
Rated value (DC) is 24 V, with a permissible range of 20.4 V to 28.8 V.
What diagnostics are available on this RTD module?
It provides alarms, diagnostic alarm, diagnostics function, monitoring the supply voltage, wire break detection, and a DIAG LED for input status.
