Key Features
- 8-channel analog input module: AI 8xU/R/RTD/TC HF with 8 channels in groups of 1.
- Measurement and resolution: 16 bit resolution, up to 21 bit Resolution at RT and TC, and accuracy 0.1%.
- Diagnostics and interrupts: Diagnostics and hardware interrupts are supported.
- Temperature measurement functions: Measuring range is scalable, thermocouple type C is supported, and Calibrate in RUN is available.
- Selection and installation details: Delivery includes infeed element, shield bracket and shield terminal; Front connector (screw terminals or push-in) is ordered separately.
Applications
- Analog signal acquisition: Acquisition of voltage, resistance, resistance thermometer, and thermocouple signals on 8 channels.
- Temperature measurement integration: Temperature measurement with scalable measuring range and support for thermocouple type C.
- In-run calibration and reparameterization: Calibration and reparameterization in RUN for operational adjustment.
Technical Summary
| Product type designation | AI 8xU/R/RTD/TC HF |
|---|---|
| Number of analog inputs | 8; Plus one additional RTD (reference) channel |
| Resolution | 16 bit resolution |
| Resolution at RT and TC | up to 21 bit Resolution at RT and TC |
| Accuracy | 0.1% |
| Supply voltage, rated value (DC) | 24 V |
| Supply voltage, permissible range | 19.2 V to 28.8 V |
| Current consumption, max. | 55 mA; with 19.2 V supply |
| Power consumption from the backplane bus | 0.85 W |
| Power loss, typ. | 1.9 W |
| Diagnostics function | Yes |
| Reparameterization possible in RUN | Yes |
Frequently Asked Questions
What is Siemens 6ES7531-7PF00-0AB0?
It is a SIMATIC S7-1500 analog input module, AI 8xU/R/RTD/TC HF.
How many inputs does 6ES7531-7PF00-0AB0 have?
It has 8 analog inputs, plus one additional RTD (reference) channel.
What resolution does the AI 8xU/R/RTD/TC HF offer?
It provides 16 bit resolution, with up to 21 bit Resolution at RT and TC.
What supply voltage does the module require?
The rated supply voltage is 24 V DC, with a permissible range of 19.2 V to 28.8 V.
