Product information
Overview
Key Features
- RTD analog input capacity: 8 analog inputs for resistance thermometers, with the product type designation SM 1231, AI 8×16 bit RTD.
- Supported resistance thermometers: Supports Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, and LG-Ni1000.
- Rated supply and consumption: Rated supply voltage: 24 V DC. Typical current consumption: 40 mA; typical backplane bus consumption: 80 mA at 5 V DC.
- Measurement performance: Resolution with overrange: 15 bit including sign. Measurement principle: integrating. Interference voltage suppression: 85 dB at 50 / 60 / 400 Hz.
- Diagnostics and protection: Has alarms, readable diagnostics, supply-voltage monitoring, wire-break detection, input-status and maintenance LEDs, and IP20 protection.
Technical Summary
| Product type | SM 1231, AI 8×16 bit RTD |
|---|---|
| Analog inputs | 8; Resistance thermometer |
| Rated supply voltage | 24 V DC |
| Supported resistance ranges | 150 Ω, 300 Ω, 600 Ω |
| Resolution with overrange | 15 bit including sign |
| Typical power loss | 1.5 W |
| Protection | IP20 |
Frequently Asked Questions
What is Siemens 6ES7231-5PF32-0XB0?
It is a SIMATIC S7-1200 SM 1231 analog input module with 8xAI 16 bit RTD inputs for resistance thermometers.
What supply does this module require?
Its rated supply voltage is 24 V DC. Typical current consumption is 40 mA, and typical backplane bus consumption is 80 mA at 5 V DC.
Which resistance thermometers are supported?
It supports Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, and LG-Ni1000.
Does the module provide diagnostics?
Yes. It has readable diagnostics, alarms, supply-voltage monitoring, wire-break detection, and LEDs for input status and maintenance.
How can I request a quotation for this exact module?
Send the required quantity, destination, and MRO or project context for a model-specific quotation request.
