1756-HSC High Speed Counter Module Allen-Bradley

Allen-Bradley 1756-HSC: Precision High-Speed Counting Solution

High-Speed Performance Specifications

• Maximum frequency: 1 MHz in counter mode
• Rate measurement: 500 kHz maximum
• Encoder operation: 250 kHz maximum
• Debounce filter: 70 Hz maximum
• Count range: 0 to 16,777,214
• Update rate: 2 milliseconds default

Channel Configuration & I/O Capabilities

• 2 independent counter channels
• 3 inputs per counter (A, B, Z for Gate/Reset)
• 4 discrete outputs (2 points per common group)
• Flexible output assignment to any counter
• Dual turn-off preset values per output
• Manual or automatic output control

Operating Modes & Applications

• Counter Mode: Pulse counting up to 1 MHz
• Rate Measurement: Frequency analysis to 500 kHz
• Encoder Mode: Quadrature decoding to 250 kHz
• Debounce Filter: Noise rejection at 70 Hz
• Ideal for motion control and position sensing
• Perfect for flow totalization and metering systems

Electrical Specifications & Compatibility

• 5V operation: 4.5-5.5V DC input range
• 12/24V operation: 10-31.2V DC input range
• Backplane current: 300 mA at 5.1V, 3 mA at 24V
• Power dissipation: 5.6 watts maximum at 60°C
• Compatible with: 1756-TBCH, 1756-TBS6H terminal blocks

Supported Devices & Integration

• Allen-Bradley 845 incremental encoders
• PHOTOSWITCH series photoelectric sensors
• Bulletin 872 3-wire DC proximity sensors
• Pulse generators and totalizers
• Limit switches and magnetic pickups
• Various rotary encoding devices

Common Questions Answered

What counting speeds can this module handle?

The 1756-HSC supports up to 1 MHz in counter mode, 500 kHz in rate measurement, and 250 kHz in encoder mode.

How many counters and outputs are available?

The module provides 2 independent counters with 3 inputs each, plus 4 discrete outputs for control actions.

What devices are compatible with this module?

It works with incremental encoders, photoelectric sensors, proximity sensors, and various pulse-generating devices.

What is the maximum count value?

The counter can accumulate up to 16,777,214 counts before resetting.

How quickly does the module respond?

Default update time is 2 milliseconds, with faster response for output activation via on-board processing.

What is your shipping policy?

We process orders within 5 business days and ship globally via major carriers with full tracking.

Do you provide technical support?

Yes, our experienced team offers comprehensive technical support for all applications.

For immediate assistance and pricing information, contact our specialists: sales@nex-auto.com