Key Features
- Analog input module: SIMATIC S7-400 analog input SM 431.
- 8 AI: Number of analog inputs: 8.
- 16 bit resolution: Resolution with overrange (bit including sign), max.: 16 bit.
- Resistor and RTD input support: Resistance thermometer: Yes; resistance: Yes; Pt 100: Yes; Ni 100: Yes.
- Diagnostics alarm: Diagnostic alarm: Yes; Parameterizable.
- 20 ms conversion time: Integration time (ms): 20 ms at 50 Hz (entire module incl. wire break).
Applications
- Resistance measurement input acquisition: For resistance measurement with 8 channels.
- Resistance thermometer signal input acquisition: For connecting resistance thermometers such as Pt 100 and Ni 100.
- Diagnostics and alarm handling on analog inputs: Supports diagnostic alarm, limit value alarm, and hardware interrupt functions.
Technical Summary
| Analog inputs | 8 |
|---|---|
| Resolution with overrange (bit including sign), max. | 16 bit |
| Integration time (ms) | 20 ms at 50 Hz (entire module incl. wire break) |
| Basic conversion time (ms) | 8 / 23 / 25 ms |
| Potential separation analog inputs | Yes; internal/external |
| Potential separation between the channels and backplane bus | Yes |
| Isolation tested with | 500 V DC |
Frequently Asked Questions
What is Siemens 6ES7431-7KF10-0AB0 used for?
It is a SIMATIC S7-400 analog input SM 431 module with 8 AI.
What signal types does the 6ES7431-7KF10-0AB0 support?
It supports resistance thermometer and resistance inputs, including Pt 100, Ni 100, Pt 1000, Ni 1000, Pt 200, and Pt 500.
What are the main measurement specifications of this analog input module?
The module offers 16 bit resolution and 20 ms integration time at 50 Hz.
What connection and isolation details are listed for this module?
Potential separation of analog inputs is Yes; internal/external, and separation between the channels and backplane bus is Yes. Isolation tested with: 500 V DC.
