Key Features
- 8 isolated analog inputs: Analog input SM 431 with 8 AI.
- 13 bit resolution: Resolution with overrange, max.: 13 bit.
- Voltage, current, and resistance measurement: Input ranges support voltage, current, and resistance measurement.
- Potential separation: Potential separation analog inputs: Yes; internal/external. Between the channels and backplane bus: Yes.
- Connection options for signal encoders: Supports voltage measurement, current measurement as 2-wire transducer with external transmitter supply, current measurement as 4-wire transducer, and resistance measurement with two-wire, three-wire, and four-wire connection.
Applications
- Voltage measurement input: For voltage measurement in the PLC analog input channel.
- Current measurement input: For current measurement in the PLC analog input channel.
- Resistance measurement input: For resistance measurement in the PLC analog input channel.
Technical Summary
| Number of analog inputs | 8 |
|---|---|
| Resolution with overrange | 13 bit |
| Supported measurement types | Voltage; Current; Resistance |
| Voltage input range | 1 V to 5 V |
| Current input range | 4 mA to 20 mA |
| Resistance input range | 0 to 600 ohms |
| Backplane bus input current, max. | 350 mA |
| Typical power loss | 1.8 W |
| Potential separation analog inputs | Yes; internal/external |
| Isolation tested with | 2 120 V DC between bus and analog part; 500 V DC between bus and local ground; 2 120 V DC between analog part and local ground |
Frequently Asked Questions
What is Siemens 6ES7431-1KF00-0AB0?
It is a SIMATIC S7-400 analog input SM 431 module with 8 AI.
How many analog inputs does 6ES7431-1KF00-0AB0 have?
The module provides 8 analog inputs.
What resolution does the 6ES7431-1KF00-0AB0 analog input module offer?
Resolution with overrange is 13 bit.
Which measurement types are supported by this SM 431 module?
It supports voltage, current, and resistance measurement.
