Key Features
- Analog input module: SIMATIC S7-400 analog input SM 431 with isolated 16 AI.
- 16 bit resolution: Resolution is 16 bit.
- Multi-signal input support: Supports U/I/Resistor/Thermocouple/Pt100 inputs.
- Alarm and diagnostics: Alarm and diagnostics functions are included.
- Product lifecycle: Product lifecycle: Announcement of product phase-out.
Technical Summary
| Product type | SIMATIC S7-400 analog input SM 431 |
|---|---|
| Channels | 16 AI |
| Resolution | 16 bit |
| Supported inputs | U/I/Resistor/Thermocouple/Pt100 |
| Alarm function | alarm |
| Diagnostics function | diagnostics |
| Load voltage L+ | 24 V; Only required for supplying 2-wire transmitters |
| Input current from load voltage L+ | 400 mA; for 16 connected, fully controlled 2-wire transmitters |
| Input current from backplane bus 5 V DC | 700 mA |
| Power loss, typ. | 4.5 W |
Applications
- Analog signal acquisition: For reading 16 analog input signals.
- Temperature and resistance measurement: For measuring thermocouple, Pt100, and resistance-based signals.
Frequently Asked Questions
What is the exact Siemens model of this analog input module?
6ES7431-7QH00-0AB0, SIMATIC S7-400 analog input SM 431.
How many analog inputs does 6ES7431-7QH00-0AB0 have?
It has 16 analog inputs.
What input types are supported by 6ES7431-7QH00-0AB0?
It supports U/I/Resistor/Thermocouple/Pt100 inputs.
What is the resolution of the module?
The resolution is 16 bit.
What supply and power details are listed for the module?
Load voltage L+ is 24 V; Only required for supplying 2-wire transmitters. Power loss, typ. is 4.5 W.
