Key Features
- Analog input module with mixed signal support: AI 8xU/I/RTD/TC ST, with 8 channels and 16-bit resolution.
- Environmental protection and temperature range: Conformal coating, -40…+70 °C, and OT4 with ST1/2 (+85 °C for 10 minutes).
- Diagnostics and hardware interrupts: Diagnostics included, with hardware interrupts.
- Based on a defined Siemens order number: Based on 6ES7531-7KF00-0AB0.
Technical Summary
| Product type designation | AI 8xU/I/RTD/TC ST |
|---|---|
| Based on | 6ES7531-7KF00-0AB0 |
| Number of analog inputs | 8; > +60 °C max. 2x ±20 mA or 4x ±10 V or 4x RTD permissible |
| Resolution with overrange (bit including sign), max. | 16 bit |
| Supply voltage, rated value (DC) | 24 V |
| Supply voltage, permissible range, lower limit (DC) | 19.2 V |
| Supply voltage, permissible range, upper limit (DC) | 28.8 V |
| Power consumption from the backplane bus | 0.7 W |
| Power loss, typ. | 2.7 W |
| Diagnostics function | Yes |
| Isolation tested with | 750 V DC (type test) and according to EN 50155 (routine test) |
Applications
- Analog signal acquisition: For measuring voltage, current, resistance thermometer, and thermocouple signals on the module channels.
- RTD measurement: For RTD measurement on 4 channels.
Frequently Asked Questions
What is the exact Siemens model and product type of 6AG2531-7KF00-4AB0?
It is a SIPLUS S7-1500 AI 8xU/I/RTD/TC ST analog input module.
How many analog inputs does this module have?
It has 8 analog inputs.
What supply voltage does 6AG2531-7KF00-4AB0 require?
Rated value is 24 V DC, with a permissible range from 19.2 V to 28.8 V.
What is the maximum cable length for this module?
The shielded cable length is max. 800 m for U/I, 200 m for R/RTD, and 50 m for TC.
