7AT324.70 B&R Communication module

Description

7AT324.70 B&R Communication module

Product Dimensions：

Product Description

The B&R 7AT324.70 is a high-precision temperature input module from the Aprol / System 2005 series. It is designed to interface with thermocouples and provides accurate temperature data for industrial automation and process control systems.

Product Parameters

The 7AT324.70 is an analog input module specifically optimized for thermal sensing.

Key Product Advantages

• High Resolution (16-bit): Provides extremely fine granularity in temperature readings, which is essential for precision chemical or thermal processes.

• Flexible Sensor Support: Supports a wide range of standard thermocouples, allowing the same hardware to be used in various high-heat or cryogenic applications.

• Internal Cold Junction Compensation (CJC): Simplifies wiring by automatically compensating for the temperature at the terminal connection point, reducing the need for external compensation hardware.

• Robust Diagnostic Features: The module can detect open circuits (sensor breakage) and values outside of the defined measuring range, ensuring system safety.

• Galvanic Isolation: Protects the internal PLC electronics from high-voltage transients that may occur on the field-side sensor wires.

Product Applications

• Plastic Injection Molding: Precise monitoring of heating zones and nozzle temperatures.

• Heat Treatment Furnaces: Controlling high-temperature annealing and tempering processes in metallurgy.

• Food and Beverage: Monitoring pasteurization temperatures or industrial baking oven zones.

• Chemical Processing: Tracking exothermic reactions in reactor vessels where high accuracy is safety-critical.

• HVAC Control: Large-scale industrial boiler and chiller management.

Important Usage Notes (Precautions)

• Thermocouple Polarity: Ensure correct polarity (+/-) during wiring. Reversing the wires will cause the temperature reading to move in the opposite direction of the actual change.

• Cold Junction Accuracy: For the highest accuracy, ensure that the module terminals are not exposed to direct drafts or rapid ambient temperature changes, as this can affect the internal CJC accuracy.

• Shielding: Use shielded compensation cables specifically designed for thermocouples. The shield should be grounded at the control cabinet entry point to minimize electrical noise interference.

• Unused Channels: It is recommended to deactivate unused channels in the software configuration (Automation Studio) to reduce the overall cycle time of the module.

Wiring Configuration

When wiring the 7AT324.70, it is important to use the correct compensation cable that matches the thermocouple type being used.

• Terminals 1-4: Positive (+) leads for channels 1 through 4.

• Terminals 5-8: Negative (-) leads for channels 1 through 4.

• Shield: Connected to the functional earth (FE) rail.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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