Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Module type | AI 8xU/I/RTD/TC ST |
| Analog input channels | 8 channels in groups of 8 |
| Supported RTD channels | 4 channels |
| Resolution | 16 bit |
| Operational error limit | 0.3% for voltage, current, and resistance relative to the input range |
| Rated supply | 24 V DC |
| Permissible supply range | 19.2 V to 28.8 V DC |
| Supported voltage ranges | 1 V to 5 V; -1 V to +1 V; -10 V to +10 V; -2.5 V to +2.5 V; -250 mV to +250 mV; -5 V to +5 V; -50 mV to +50 mV; -500 mV to +500 mV; -80 mV to +80 mV |
| Supported current ranges | 0 to 20 mA; -20 mA to +20 mA; 4 mA to 20 mA |
| Front connector | Screw terminals or push-in, ordered separately |
Applications
- Analog signal measurement: Measures voltage and current signals, resistance, resistance thermometer, and thermocouple signals through its analog inputs.
- Input diagnostics: Provides diagnostics, diagnostic alarms, limit value alarms, wire-break detection, and channel or module diagnostic indication.
Key Features
- 8-channel analog input: AI 8xU/I/RTD/TC ST module with 8 analog inputs in groups of 8; 4 channels support RTD measurement.
- Signal measurement: Supports voltage, current, resistance, resistance thermometer, and thermocouple measurement, including 1 V to 5 V, -10 V to +10 V, 0 to 20 mA, 4 mA to 20 mA, and selected TC types.
- Resolution and accuracy: 16 bit resolution with 0.3% operational error limit for voltage, current, and resistance relative to the input range.
- Diagnostics and interrupts: Has diagnostics, diagnostic and limit value alarms, wire-break detection for 1 V to 5 V, 4 mA to 20 mA, TC, R, and RTD, plus hardware interrupts.
- Supply and isolation: Rated supply is 24 V DC with a permissible range of 19.2 V to 28.8 V, reverse polarity protection, and electrical separation between channels and the backplane bus.
- Delivery and connector: Delivery includes the infeed element, shield bracket, and shield terminal. The front connector with screw terminals or push-in must be ordered separately.
Frequently Asked Questions
1. How many analog inputs does 6ES7531-7KF00-0AB0 have?
It has 8 analog input channels in groups of 8, with 4 channels for RTD measurement.
2. Which signal ranges does this module support?
Supported voltage ranges include 1 V to 5 V, -1 V to +1 V, -10 V to +10 V, -2.5 V to +2.5 V, -250 mV to +250 mV, -5 V to +5 V, -50 mV to +50 mV, -500 mV to +500 mV, and -80 mV to +80 mV. Supported current ranges are 0 to 20 mA, -20 mA to +20 mA, and 4 mA to 20 mA.
3. What diagnostics are available?
The module has diagnostics, diagnostic alarms, limit value alarms, supply voltage monitoring, wire-break detection for 1 V to 5 V, 4 mA to 20 mA, TC, R, and RTD, and overflow/underflow indication.
4. What supply voltage does it require?
The rated supply is 24 V DC, with a permissible range of 19.2 V to 28.8 V DC and reverse polarity protection.
5. Is the front connector included?
It is without the front connector. The front connector with screw terminals or push-in must be ordered separately; the delivery includes the infeed element, shield bracket, and shield terminal.
