Product Description
Key Features
- Analog input identity: AI 8xU/R/RTD/TC HF module with 8 analog inputs in groups of 1, plus one additional RTD reference channel.
- Measurement capability: Supports voltage, resistance, resistance thermometer and thermocouple measurement; scalable measuring range and temperature measurement in °C/°F/K.
- Resolution and accuracy: 16 bit resolution for R and U measuring modes; up to 21 bit for RTD and TC with the scalable temperature measuring range; accuracy 0.1%.
- Supply and diagnostics: Rated supply: 24 V DC, permissible range 19.2 V to 28.8 V DC; diagnostics, diagnostic alarms, wire-break monitoring for TC, R and RTD, and overflow/underflow detection.
- Interfaces and engineering: PROFIBUS from GSD V1.0 / V5.1 and PROFINET from GSD V2.3; configurable with STEP 7 TIA Portal from V14.
- Delivery and exclusion: Delivery includes the infeed element, shield bracket and shield terminal. The front connector with screw terminals or push-in must be ordered separately.
Applications
- Voltage measurement: Supports voltage measurement on the analog inputs, including the -1 V to +1 V and -25 mV to +25 mV ranges.
- Resistance and temperature measurement: Supports resistance, resistance thermometer and thermocouple measurement, including internal or external temperature compensation via RTD.
- Signal diagnostics: Provides diagnostics, diagnostic alarms, limit value alarms, wire-break monitoring for TC, R and RTD, and overflow/underflow detection.
Technical Summary
| Product type | AI 8xU/R/RTD/TC HF |
|---|---|
| Analog inputs | 8; plus one additional RTD (reference) channel |
| Resolution | 16 bit for R and U measuring modes; up to 21 bit for RTD and TC with the scalable temperature measuring range |
| Accuracy | 0.1% |
| Rated supply | 24 V DC |
| Permissible supply range | 19.2 V to 28.8 V DC |
| Communication engineering | PROFIBUS from GSD V1.0 / V5.1; PROFINET from GSD V2.3 |
| Firmware version | V1.1.0 |
| Protection and diagnostics | Reverse polarity protection; diagnostics; diagnostic alarm; wire break for TC, R and RTD; overflow/underflow |
| Delivery | Infeed element, shield bracket and shield terminal included; front connector ordered separately |
Frequently Asked Questions
What is the exact order number of this analog input module?
The exact order number is 6ES7531-7PF00-0AB0, and the product type designation is AI 8xU/R/RTD/TC HF.
How many analog channels does the module provide?
It provides 8 analog inputs in groups of 1, plus one additional RTD reference channel.
Which supply voltage does the module require?
The rated supply is 24 V DC, with a permissible range from 19.2 V to 28.8 V DC.
Is the front connector included?
It is without the front connector. The delivery includes the infeed element, shield bracket and shield terminal; the front connector with screw terminals or push-in must be ordered separately.
