Technical Summary
| Product designation | 6ES7431-1KF20-0AB0 |
|---|---|
| Module type | SIMATIC S7-400, analog input SM 431 |
| Analog inputs | 8 |
| Resolution | 14 bit |
| Cycle time | 0.416 ms |
| Load voltage L+ rated value (DC) | 24 V; Only required for supplying 2-wire transmitters |
| Input current from load voltage L+ (without load), max. | 200 mA; for 8 connected, fully controlled 2-wire transmitters |
| Input current from backplane bus 5 V DC, max. | 1 000 mA |
| Power loss, typ. | 4.9 W |
| 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
Acquires voltage, current, and resistance signals through 8 analog inputs.
Connects current measurement as 2-wire transducer, 4-wire transducer, and resistance measurement with two-wire, three-wire, or four-wire connection.
Key Features
SM 431 analog input module for SIMATIC S7-400.
8 AI with isolated analog inputs.
Resolution: 14 bit.
Cycle time: 0.416 ms.
Announcement of product phase-out.
Frequently Asked Questions
What is Siemens 6ES7431-1KF20-0AB0?
It is a SIMATIC S7-400 analog input SM 431 with isolated 8 AI and 14 bit resolution.
What is the cycle time of 6ES7431-1KF20-0AB0?
The cycle time is 0.416 ms.
What supply value is listed for load voltage L+ on this module?
Load voltage L+ rated value (DC) is 24 V; Only required for supplying 2-wire transmitters.
What are the dimensions and weight of this module?
Width is 25 mm, height is 290 mm, depth is 210 mm, and weight is 500 g.
What is the product lifecycle status for 6ES7431-1KF20-0AB0?
The product lifecycle status is Announcement of product phase-out.
