Technical Summary
| Product family | SIMATIC S7-400 |
|---|---|
| Module type | SM 431 analog input module |
| Number of analog inputs | 8 |
| Resolution with overrange | 16 bit |
| Input ranges | Resistance thermometer; Resistance |
| Resistance thermometer types | Ni 100; Ni 1000; Pt 100; Pt 1000; Pt 200; Pt 500 |
| Constant measurement current for resistance-type transmitter | 1 mA |
| Basic conversion time | 8 / 23 / 25 ms |
| Integration time | 20 ms at 50 Hz (entire module incl. wire break) |
| Potential separation analog inputs | Yes; internal/external |
| Isolation tested with | 500 V DC |
Key Features
SIMATIC S7-400 analog input module
SM 431 analog input module for the SIMATIC S7-400 category.
SM 431 analog input module for the SIMATIC S7-400 category.
8 AI channels
Provides 8 analog inputs.
Provides 8 analog inputs.
16 bit resolution
Resolution with overrange is 16 bit including sign, max.
Resolution with overrange is 16 bit including sign, max.
Resistance and resistance thermometer input ranges
Supports resistance thermometer and resistance input ranges, including Pt 100 and Ni 100.
Supports resistance thermometer and resistance input ranges, including Pt 100 and Ni 100.
Diagnostics alarm
Diagnostics alarm is available and parameterizable.
Diagnostics alarm is available and parameterizable.
20 ms conversion time
Integration time is 20 ms at 50 Hz, entire module incl. wire break.
Integration time is 20 ms at 50 Hz, entire module incl. wire break.
Applications
Resistance thermometer signal acquisition
For reading resistance thermometer signals on 8 analog inputs.
For reading resistance thermometer signals on 8 analog inputs.
Resistance measurement with 3-wire or 4-wire connection
For resistance measurement using three-wire connection or four-wire connection.
For resistance measurement using three-wire connection or four-wire connection.
Frequently Asked Questions
What is 6ES7431-7KF10-0AB0 in the SIMATIC S7-400 range?
It is an SM 431 analog input module for SIMATIC S7-400.
How many analog inputs does 6ES7431-7KF10-0AB0 provide?
It provides 8 analog inputs.
What resolution does the module support?
Resolution with overrange is 16 bit including sign, max.
Which resistance thermometer types are supported?
Ni 100, Ni 1000, Pt 100, Pt 1000, Pt 200, and Pt 500 are supported.
What are the conversion and integration times?
Basic conversion time is 8 / 23 / 25 ms, and integration time is 20 ms at 50 Hz (entire module incl. wire break).
