Product information
Overview
Key Features
- 8 analog inputs: The SM 431 module has 8 analog inputs, all available for resistance measurement.
- Resistance thermometer support: Supported resistance thermometer types include Ni 100, Ni 1000, Pt 100, Pt 1000, Pt 200, and Pt 500.
- 16-bit resolution: Resolution with overrange, including sign, is max. 16 bit.
- Conversion and integration: Integration time is parameterizable; integration time is 20 ms at 50 Hz, including the entire module and wire break.
- Diagnostics and alarms: The module has parameterizable diagnostics, diagnostic alarms, parameterizable hardware interrupts, and limit value alarms.
Technical Summary
| Product type | SIMATIC S7-400 SM 431 analog input module |
|---|---|
| Analog inputs | 8 |
| Resolution with overrange | 16 bit |
| Supported measurement types | Resistance thermometer; resistance |
| Supported resistance thermometers | Ni 100, Ni 1000, Pt 100, Pt 1000, Pt 200, Pt 500 |
| Integration time | 20 ms at 50 Hz (entire module incl. wire break) |
| Backplane bus supply | 5 V DC, max. 650 mA |
| Diagnostic alarm | Yes; parameterizable |
| Three-wire and four-wire connection | Yes |
Frequently Asked Questions
What is Siemens 6ES7431-7KF10-0AB0?
It is a SIMATIC S7-400 SM 431 analog input module with 8 analog inputs and 16-bit resolution.
Which resistance thermometers does the module support?
It supports Ni 100, Ni 1000, Pt 100, Pt 1000, Pt 200, and Pt 500 resistance thermometers.
Does 6ES7431-7KF10-0AB0 provide diagnostics?
Yes. It has parameterizable diagnostics and diagnostic alarms, plus limit value alarms and parameterizable hardware interrupts.
What connection methods are supported for resistance measurement?
Three-wire and four-wire connections are supported for resistance measurement.
