Product Overview
Technical Summary
| Product designation | SIMATIC S7-400, analog input SM 431, isolated 8 AI, resolution 13 bit, U/IResistor |
|---|---|
| Analog inputs | 8 |
| Voltage/current measurement inputs | 8 |
| Resistance measurement inputs | 4 |
| Voltage input ranges | 1 V to 5 V; -1 V to +1 V; -10 V to +10 V |
| Current input ranges | -20 mA to +20 mA; 4 mA to 20 mA |
| Resistance input range | 0 to 600 ohms; usable up to 500 ohms |
| Resolution with overrange | 13 bit |
| Input current from backplane bus | 350 mA maximum at 5 V DC |
| Power loss | 1.8 W typical |
| Potential separation | Between analog inputs and backplane bus; not between channels |
| Product lifecycle | Announcement of product phase-out |
Key Features
- Product designation: SIMATIC S7-400 analog input SM 431 with isolated 8 AI, 13-bit resolution, and U/IResistor.
- Analog inputs: 8 analog inputs; 8 for voltage/current measurement and 4 for resistance measurement.
- Input ranges: Supports voltage, current, and resistance ranges, including 1 V to 5 V, -10 V to +10 V, 4 mA to 20 mA, and 0 to 600 ohms.
- Input protection limits: Maximum permissible input voltage is 50 V. Maximum permissible input current is 50 mA; 40 mA continuous.
- Potential separation: Analog inputs have internal/external potential separation and separation between the channels and backplane bus; there is no separation between channels.
- Module dimensions and weight: Width: 25 mm; height: 290 mm; depth: 210 mm; weight, approx.: 500 g.
Frequently Asked Questions
What product does 6ES7431-1KF00-0AB0 identify?
It identifies a SIMATIC S7-400 analog input SM 431 with isolated 8 AI, 13-bit resolution, and U/IResistor.
Which specifications distinguish this analog input module?
The module has 8 analog inputs, supports voltage, current, and resistance measurement, and provides 13-bit resolution.
Which input ranges should be checked against the required variant?
Check the voltage ranges 1 V to 5 V, -1 V to +1 V, and -10 V to +10 V; the current ranges -20 mA to +20 mA and 4 mA to 20 mA; and the resistance range 0 to 600 ohms.
What code and nameplate details should be checked before inquiry?
Check the complete order number 6ES7431-1KF00-0AB0 and the module designation SIMATIC S7-400 analog input SM 431.
What information is needed for a quotation?
Provide the required quantity and destination together with the complete order number.
