Product Overview
Technical Summary
| Product type designation | SM 1231, AI 4×16 bit RTD |
|---|---|
| Analog inputs | 4; Resistance thermometer |
| Rated supply voltage | 24 V DC |
| Typical current consumption | 40 mA |
| Typical backplane bus current | 80 mA at 5 V DC |
| Typical power loss | 1.5 W |
| Resistance thermometer types | Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000 |
| Resistance ranges | 150 Ω, 300 Ω, 600 Ω |
| Resolution with overrange | 15 bit; + sign |
| Interference voltage suppression | 85 dB at 50 / 60 / 400 Hz |
| IP degree of protection | IP20 |
Key Features
- Product type designation: SM 1231, AI 4×16 bit RTD.
- Analog inputs: 4 analog inputs for resistance thermometers, including Pt, Ni, Cu, and LG-Ni types.
- Rated supply voltage: 24 V DC.
- Resolution with overrange: 15 bit; + sign.
- Protection and diagnostics: IP20 protection, wire-break monitoring, diagnostic alarms, and input-status LEDs.
Frequently Asked Questions
What product does Siemens 6ES7231-5PD32-0XB0 identify?
It identifies a SIMATIC S7-1200 SM 1231 analog input module with 4 RTD inputs: SM 1231, AI 4×16 bit RTD.
Which specifications distinguish this MLFB variant?
Check the 4 resistance-thermometer inputs, 24 V DC rated supply, 15-bit resolution with overrange, and IP20 protection.
Which resistance thermometers are supported?
The module supports Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, and LG-Ni1000.
What code and nameplate details should be checked before quotation?
Check the complete order number 6ES7231-5PD32-0XB0 and the product type designation SM 1231, AI 4×16 bit RTD.
What details are needed for a quotation?
Provide the required quantity and destination together with the complete order number 6ES7231-5PD32-0XB0.
