Product Overview
Applications
Measures temperature using supported resistance thermometers, with the technical unit adjustable to degrees Celsius or degrees Fahrenheit.
Measures supported resistance inputs including 150 Ω, 300 Ω, and 600 Ω ranges.
Technical Summary
| Product type designation | SM 1231, AI 8×16 bit RTD |
|---|---|
| Analog inputs | 8; Resistance thermometer |
| Rated supply voltage | 24 V DC |
| Typical current consumption | 40 mA |
| Backplane bus current consumption, typical | 80 mA at 5 V DC |
| Supported resistance thermometers | Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000 |
| Resistance inputs | 150 Ω, 300 Ω, 600 Ω |
| Measurement principle | integrating |
| Resolution with overrange | 15 bit; + sign |
| Diagnostics | Alarms, readable diagnostics, diagnostic alarm, supply-voltage monitoring, wire break |
| IP degree of protection | IP20 |
Key Features
Provides 8 analog inputs for resistance thermometers, including Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, and LG-Ni1000.
Supports resistance inputs of 150 Ω, 300 Ω, and 600 Ω, plus 0 to 150 ohms, 0 to 300 ohms, and 0 to 600 ohms.
Rated supply voltage: 24 V DC. Typical current consumption is 40 mA, with 80 mA typical from the backplane bus at 5 V DC.
Resolution with overrange is 15 bit; + sign. The measurement principle is integrating.
Has alarms, readable diagnostics, diagnostic alarms, supply-voltage monitoring, wire-break detection, and input-status and maintenance LEDs.
IP degree of protection: IP20.
Frequently Asked Questions
What is the exact product type of 6ES7231-5PF32-0XB0?
It is an SM 1231, AI 8×16 bit RTD analog input module for SIMATIC S7-1200.
How many RTD inputs does this module have?
It has 8 analog inputs for resistance thermometers.
Which supply voltage does the module use?
The rated supply voltage is 24 V DC.
Which resistance thermometer types are supported?
Supported types include Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, and LG-Ni1000.
What should I provide for a project quotation request?
Provide the requested quantity, destination, schedule context, and any additional BOM lines.
