Product information
Overview
Key Features
- Analog input capacity: Has 8 analog inputs, including 8 inputs for voltage/current measurement.
- Supported input signals: Supports voltage, current, and thermocouple inputs; resistance thermometer and resistance inputs are not included.
- Resolution and conversion: Provides 16-bit resolution with overrange including sign and a 20 ms conversion time.
- Diagnostics and alarms: Has parameterizable diagnostics, diagnostic alarms, limit value alarms, parameterizable hardware interrupts, and readable diagnostic information.
- Electrical isolation: Analog inputs are isolated internally and externally, between channels and between channels and the backplane bus; isolation is tested with 1 500 V DC.
- Module dimensions: Dimensions are 25 mm width, 290 mm height, and 210 mm depth; weight is approximately 650 g.
Technical Summary
| Product type | SIMATIC S7-400 SM 431 analog input module |
|---|---|
| Analog inputs | 8 |
| Resolution | 16 bit |
| Input signals | Voltage, current, thermocouple |
| Conversion time | 20 ms |
| Supported voltage ranges | 1 V to 5 V; -1 V to +1 V; -10 V to +10 V; -100 mV to +100 mV; -2.5 V to +2.5 V; -20 mV to +20 mV; -250 mV to +250 mV; -5 V to +5 V; -50 mV to +50 mV; -500 mV to +500 mV; -80 mV to +80 mV |
| Supported current ranges | 0 to 20 mA; -10 mA to +10 mA; -20 mA to +20 mA; -3.2 mA to +3.2 mA; 4 mA to 20 mA; -5 mA to +5 mA |
| Thermocouple types | B, E, J, K, L, N, R, S, T, U |
| Diagnostics | Parameterizable diagnostics and diagnostic alarm; limit value alarm; parameterizable hardware interrupt |
Frequently Asked Questions
What is Siemens 6ES7431-7KF00-0AB0?
It is a SIMATIC S7-400 SM 431 analog input module with 8 AI and 16-bit resolution.
Which input signals does this module support?
It supports voltage, current, and thermocouple inputs. Resistance thermometer and resistance inputs are not included.
What diagnostics and alarms are available?
It has parameterizable diagnostics, diagnostic alarms, limit value alarms, parameterizable hardware interrupts, and readable diagnostic information.
What configuration should I specify for a quotation?
Send the required quantity, destination, and project-list context for a model-specific quotation.
