Product Overview
Technical Summary
| Product type designation | AI 8xU/I/RTD/TC ST |
|---|---|
| Analog input channels | 8; > +60 °C max. 2x ±20 mA or 4x ±10 V or 4x RTD permissible |
| Resolution | 16 bit |
| Accuracy | 0.3% |
| Rated supply voltage | 24 V DC |
| Permissible supply voltage | 19.2 V to 28.8 V DC |
| Measurement types | Voltage, current, resistance, resistance thermometer, thermocouple |
| Firmware update possible | Yes |
| Diagnostics function | Yes |
| Product lifecycle | Active Product |
Key Features
- Product designation: AI 8xU/I/RTD/TC ST analog input module, based on 6ES7531-7KF00-0AB0.
- Analog input capacity: 8 analog input channels; 4 channels for RTD measurement.
- Resolution and accuracy: 16-bit resolution and 0.3% accuracy.
- Supply voltage: Rated supply: 24 V DC; permissible range: 19.2 V to 28.8 V DC.
- Supported measurements: Voltage, current, resistance, resistance thermometer, and thermocouple measurement; supported ranges include 1 V to 5 V, 0 to 20 mA, and 4 mA to 20 mA.
- Conformal coating and temperature: Conformal coating; -40…+70 °C, OT4 with ST1/2 (+85 °C for 10 minutes).
Applications
- Voltage and current measurement: Measures voltage and current signals through its analog inputs.
- Temperature measurement: Measures temperature with resistance thermometers and thermocouples.
- Resistance measurement: Measures resistance, including PTC and supported resistance ranges.
Frequently Asked Questions
What product type does Siemens 6AG2531-7KF00-4AB0 identify?
It identifies the AI 8xU/I/RTD/TC ST analog input module.
Which specifications distinguish this MLFB variant?
The listed variant has 8 analog input channels, 16-bit resolution, 0.3% accuracy, conformal coating, and -40…+70 °C with OT4 and ST1/2 (+85 °C for 10 minutes).
What supply details should be checked against the nameplate?
Check the 24 V DC rated supply and the permissible 19.2 V to 28.8 V DC range.
What quantity and destination are needed for a quotation?
Provide the required quantity and destination together with the complete 6AG2531-7KF00-4AB0 order number.
