Product Overview
Applications
Measures voltage and current signals through its analog input channels.
Measures resistance, resistance thermometer, and thermocouple signals, with internal or external temperature compensation for thermocouples.
Provides diagnostic alarms, limit value alarms, supply voltage monitoring, wire-break monitoring, and overflow/underflow indication.
Technical Summary
| Product type | AI 4xU/I/RTD/TC ST |
|---|---|
| Input channels | 4 |
| Resolution | 16 bit |
| Accuracy | 0.3% operational error limit relative to the input range |
| Rated supply voltage | 24 V DC |
| Permissible supply voltage | 19.2 V to 28.8 V DC |
| Input signal ranges | 1 V to 5 V; -1 V to +1 V; -10 V to +10 V; -2.5 V to +2.5 V; 0 to 20 mA; -20 mA to +20 mA; 4 mA to 20 mA |
| Thermocouple types | B, E, J, K, N, R, S, T |
| Firmware version | V1.0.0 |
| Protection and diagnostics | Reverse polarity protection; diagnostics; hardware interrupts |
| Delivery contents | Push-in front connector, infeed element, shield bracket, and shield terminal |
Key Features
4 analog input channels support current measurement, voltage measurement, thermocouple measurement, and 2 channels for resistance or resistance thermometer measurement.
Resolution with overrange is 16 bit, with 0.3% operational error limit relative to the input range for voltage, current, resistance, resistance thermometer, and thermocouple measurements.
Supported ranges include 1 V to 5 V, -1 V to +1 V, -10 V to +10 V, -2.5 V to +2.5 V, 0 to 20 mA, -20 mA to +20 mA, and 4 mA to 20 mA.
Supported thermocouple types include B, E, J, K, N, R, S, and T; supported resistance thermometer options include Ni 100, Ni 1000, LG-Ni 1000, Pt 100, Pt 1000, Pt 200, and Pt 500.
The module has diagnostics, diagnostic and limit value alarms, wire-break monitoring for 1 V to 5 V, 4 mA to 20 mA, TC, R, and RTD, plus hardware interrupts.
Delivery includes a push-in front connector, infeed element, shield bracket, and shield terminal.
Frequently Asked Questions
What is the exact product type of Siemens 6ES7531-7QD00-0AB0?
It is an AI 4xU/I/RTD/TC ST analog input module.
How many analog input channels does the module have?
It has 4 analog input channels, including 2 channels for resistance or resistance thermometer measurement.
Which supply voltage does it require?
The rated supply voltage is 24 V DC, with a permissible range of 19.2 V to 28.8 V DC.
What is included in this configuration?
It includes a push-in front connector, infeed element, shield bracket, and shield terminal.
