Technical Summary
| Product designation | SIMATIC S7-400, analog input SM 431 |
|---|---|
| Number of analog inputs | 8 |
| Resolution with overrange | 16 bit |
| Input ranges | Resistance thermometer |
| Supported resistance thermometer types | Pt 100; Pt 1000; Pt 200; Pt 500; Ni 100; Ni 1000 |
| Constant measurement current for resistance-type transmitter | 1 mA |
| Basic conversion time | 8 / 23 / 25 ms |
| Integration time | 20 ms at 50 Hz (entire module incl. wire break) |
| Potential separation analog inputs | Yes; internal/external |
| Isolation tested with | 500 V DC |
Applications
Measurement of resistance thermometer signals such as Pt 100, Pt 1000, Pt 200, Pt 500, Ni 100, and Ni 1000.
Connection and acquisition of resistance measurement signals on 8 analog inputs.
Key Features
Analog input SM 431 with 8 AI.
Resolution with overrange is 16 bit including sign, max.
Input ranges include Resistance thermometer and Resistance.
Pt 100, Pt 1000, Pt 200, Pt 500, Ni 100, and Ni 1000 are supported with different characteristics selectable for Ni 1000.
Diagnostics function, diagnostic alarm, limit value alarm, and hardware interrupt are parameterizable or available.
Announcement of product phase-out.
Frequently Asked Questions
What is Siemens 6ES7431-7KF10-0AB0?
It is a SIMATIC S7-400 analog input SM 431.
How many analog inputs does 6ES7431-7KF10-0AB0 have?
It has 8 analog inputs.
Which sensor types does this SM 431 support?
It supports resistance thermometer and resistance input ranges, including Pt 100, Pt 1000, Pt 200, Pt 500, Ni 100, and Ni 1000.
What is the conversion time of this analog input module?
The integration time is 20 ms at 50 Hz, and the basic conversion time is 8 / 23 / 25 ms.
What lifecycle status is supplied for 6ES7431-7KF10-0AB0?
Product lifecycle: Announcement of product phase-out.
