Key Features
- Analog input module: SIMATIC S7-400, analog input SM 431.
- Input count and resolution: 8 AI with 14 bit resolution.
- Signal support: Supports voltage, current, and resistance measurement.
- Cycle time: Cycle time 0.416 ms.
- Isolation: Isolated analog inputs.
Technical Summary
| Product type | SIMATIC S7-400, analog input SM 431 |
|---|---|
| Channel count | 8 AI |
| Resolution | 14 bit |
| Cycle time | 0.416 ms |
| Input ranges | Voltage; Current; Resistance |
| Load voltage L+ | 24 V; Only required for supplying 2-wire transmitters |
| Reverse polarity protection | Yes |
| Power loss, typ. | 4.9 W |
| Potential separation analog inputs | Yes; internal/external |
| Isolation tested with | 2 120 V DC between bus and analog section; 500 V DC between bus and local ground; 500 V DC between analog part and L+/M; 2 120 V DC between analog part and local ground; 2 120 V DC between L+/M and local ground |
Applications
- Voltage, current, and resistance signal input: For measuring voltage, current, and resistance signals in a SIMATIC S7-400 input module.
Frequently Asked Questions
What is Siemens 6ES7431-1KF20-0AB0?
It is a SIMATIC S7-400 analog input SM 431 module.
How many analog inputs does 6ES7431-1KF20-0AB0 have, and what is the resolution?
It has 8 AI with 14 bit resolution.
Which signal types are supported by the 6ES7431-1KF20-0AB0?
It supports voltage, current, and resistance measurement.
What are the key electrical details for the 6ES7431-1KF20-0AB0?
Load voltage L+ is 24 V; only required for supplying 2-wire transmitters. Reverse polarity protection is Yes, and typical power loss is 4.9 W.
What mechanical dimensions does the 6ES7431-1KF20-0AB0 have?
Width 25 mm, height 290 mm, and depth 210 mm.
