High-Precision Analog Input Acquisition for S7-400
The 6ES7431-7KF10-0AB0 analog input module provides eight channels for the SIMATIC S7-400 automation system. This module accepts current signals from 0/4 to 20 mA, and voltage signals from ±80 mV to ±10 V . It also handles resistance and thermocouple inputs, making it suitable for diverse sensing applications . This module converts analog signals with a 16-bit resolution for exceptional measurement precision.
Input Ranges and Accuracy Performance
Each channel on the 6ES7431-7KF10-0AB0 offers programmable measuring ranges for optimal flexibility. The module achieves high accuracy with a maximum conversion time of 65 ms per channel . It also incorporates an integrated 50 Hz/60 Hz filter for noise rejection . This module ensures reliable performance with a linear error of ±0.1% and temperature drift of ±20 µV/°C .
Isolation and Protection Features
The 6ES7431-7KF10-0AB0 provides optical isolation between channels and the backplane bus for safety . It offers 500 V DC isolation from the backplane bus and 100 V DC between channels . The module also features channel diagnostics for quick fault identification and troubleshooting . Furthermore, it automatically converts thermocouple signals into temperature values or digital values in °C or °F .
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Product Line | SIMATIC S7-400 |
| Model | 6ES7431-7KF10-0AB0 |
| Module Type | Analog Input Module |
| Number of Inputs | 8 channels |
| Resolution | 16 bits |
| Input Types | 4-20 mA, 0-20 mA, ±10 V, ±80 mV, Thermocouple, Resistance |
| Conversion Time | 65 ms / channel |
| Noise Rejection | 50/60 Hz (integrated filter) |
| Linearity Error | ±0.1% |
| Temperature Drift | ±20 µV/°C |
| Isolation (Backplane) | 500 V DC |
| Isolation (Channel to Channel) | 100 V DC (non-isolated groups) |
| Common Mode Voltage | 20 V DC |
| Surge Suppression | Transistor network |
| Current Consumption (5V) | 120 mA (typical) |
| Power Loss | 3.5 W (typical) |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to +70°C |
| Dimensions | 25 x 290 x 210 mm |
| Weight | 0.85 kg |
| Certifications | CE, UL, CSA |
Details
| Weight | 1.2 kg |
|---|---|
| Dimensions | 50 × 290 × 217 mm |
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