Product Overview
Applications
The module supports voltage measurement and current measurement as a 2-wire transducer with external transmitter supply or as a 4-wire transducer.
The module supports scalable measured values, measuring-range adjustment, parameterizable integration time and parameterizable smoothing.
The module provides diagnostics, diagnostic alarms, limit value alarms, supply voltage monitoring and overflow/underflow detection.
Technical Summary
| Product type | AI 8xU/I HF analog input module |
|---|---|
| Analog inputs | 8; for current measurement and voltage measurement |
| Resolution | 24 bit including sign, max.; 32 bit REAL format with Scaling of the measured values or Measuring range adaptation |
| Operational error limit | 0.1% relative to the input range for voltage and current |
| Rated supply | 24 V DC |
| Permissible supply range | 19.2 V to 28.8 V DC |
| Supported voltage ranges | 1 V to 5 V; -10 V to +10 V; -2.5 V to +2.5 V; -5 V to +5 V |
| Supported current ranges | 0 to 20 mA; -20 mA to +20 mA; 4 mA to 20 mA |
| Firmware version | V1.1.0 |
| Mounting and delivery | Delivery includes infeed element, shield bracket and shield terminal; front connector ordered separately |
Key Features
8 analog input channels, each supporting current and voltage measurement; channels are arranged in groups of 1.
Voltage ranges include 1 V to 5 V, -10 V to +10 V, -2.5 V to +2.5 V and -5 V to +5 V. Current ranges include 0 to 20 mA, -20 mA to +20 mA and 4 mA to 20 mA.
Resolution with overrange: 24 bit including sign. Operational error limit is 0.1% relative to the input range for voltage and current.
Diagnostics, diagnostic alarms, limit value alarms, supply voltage monitoring and calibration in RUN are supported. Wire-break diagnostics apply only to 1 … 5 V and 4 … 20 mA.
Rated supply: 24 V DC; permissible range: 19.2 V to 28.8 V DC. Reverse polarity protection is provided; common mode voltage is 60 V DC/30 V AC.
Delivery includes the infeed element, shield bracket and shield terminal. The front connector with screw terminals or push-in is ordered separately.
Frequently Asked Questions
What is the exact product type of 6ES7531-7NF00-0AB0?
It is a Siemens SIMATIC S7-1500 AI 8xU/I HF analog input module.
How many analog input channels does this module have?
It has 8 analog input channels for current measurement and voltage measurement.
Which supply voltage does the module use?
The rated supply is 24 V DC, with a permissible range of 19.2 V to 28.8 V DC.
Is the front connector included?
It is without the front connector; the screw-terminal or push-in front connector is ordered separately. The infeed element, shield bracket and shield terminal are included.
