Allen-Bradley 1756-HSC ControlLogix High Speed Counter Module

Description 

The Allen-Bradley 1756-HSC is a ControlLogix high-speed counter module designed for motion and position control. It features two independent counters, each with three inputs (A, B, and Z), supporting applications such as encoders, totalizers, and metering systems.

Technical Specifications 

Information About 1756-HSC

The 1756-HSC is part of the Allen-Bradley ControlLogix family, developed to handle high-frequency input signals for real-time counting and measurement. It supports multiple operating modes including counter, rate measurement, encoder, and debounce filter, allowing flexibility in industrial automation systems. Each counter can process signals at up to 1 MHz in counter mode, 500 kHz in rate measurement mode, and 250 kHz in encoder mode, with filtering available for noisy signals. The module includes four configurable outputs, which can be linked to counter presets for rapid activation without requiring controller scan delays. Its count range extends up to 16,214,777, providing precision in applications requiring long or repeated counts. With backplane current consumption of 300 mA at 5V and 3 mA at 24V, and maximum power dissipation of 5.6 W at 60 °C, it is suitable for high-performance environments. Typical use cases include integration with encoders, photoelectric sensors, and proximity switches for accurate speed, position, and event counting.

Key Features:

• Counters: Two independent high-speed counters with three inputs each (A, B, Z for gate/reset).
• Input Frequencies: Handles up to 1 MHz in counter mode, 500 kHz in rate measurement mode, and 250 kHz in encoder mode.
• Operation Modes: Configurable for counter, rate measurement, encoder, and debounce filter modes.
• Outputs: Four output points (two per group), assignable per counter, with configurable turn-off presets.
• Count Range: Supports counting up to 16,214,777 for extended or high-volume counting applications.
• Response Speed: Data updated every 2 ms for rapid output activation and improved system responsiveness.
• Power Requirements: Backplane draw of 300 mA at 5V and 3 mA at 24V, with 5.6 W maximum dissipation at 60 °C.
• Integration: Compatible with incremental encoders, photoelectric sensors, and proximity switches for motion and position feedback.

The 1756-HSC delivers precise and high-speed counting performance, making it essential for motion control, speed monitoring, and position feedback in industrial automation systems.

Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.