Product Details
Overview
The 1746-HSCE from Allen-Bradley is a high-performance high-speed counter module for the SLC 500 programmable controller platform.
It is designed to provide rapid pulse counting, position tracking, and speed measurement for motion-oriented applications.
The module features two differential or single-ended inputs, flexible operating modes, and direct integration with PLC logic for deterministic control.
Technical Specifications
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Manufacturer: Allen-Bradley
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Model / Part Number: 1746-HSCE
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Product Type: High-Speed Counter Module
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Product Family: SLC 500 Series
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Mounting: Standard SLC chassis slot
Input Configuration
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Number of Channels: 2 independent or 1 quadrature channel
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Input Type: Differential line driver or single-ended
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Maximum Count Rate: Up to 1 MHz per channel (differential mode), 250 kHz (single-ended)
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Input Voltage: 5 V DC (TTL compatible)
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Input Impedance: 2 kΩ nominal
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Input Isolation: 500 V DC channel-to-backplane
Power Requirements
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Backplane Current @ 5 V DC: 450 mA typical
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Power Dissipation: 2.5 W max
Performance and Functions
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Count Modes: Up/Down, Quadrature, Range, and Frequency modes
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Preset and Reset: Software or external input configurable
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Latch Function: Supported for precise event capture
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Real-time Output Control: Programmable compare and gating logic
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Data Representation: 16-bit or 32-bit signed integer
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Accuracy: ±1 count at rated frequency
Environmental Characteristics
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Operating Temperature: 0 – 60 °C (32 – 140 °F)
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Storage Temperature: −40 – 85 °C (−40 – 185 °F)
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Humidity: 5 – 95 % non-condensing
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Enclosure: Open-style industrial module
Mechanical
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Weight: 0.55 kg (1.2 lb) typical
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Compatible Terminal Blocks: Standard SLC field wiring connections
Application Notes
The 1746-HSCE module is ideal for use in motion control, conveyor positioning, flow measurement, and packaging systems requiring high-speed pulse inputs.
It can interface directly with encoders, flow meters, and proximity sensors. Its deterministic response and independent channel operation make it suitable for multi-axis synchronization and event-driven automation.
FAQ
Q: What is the maximum input frequency supported by the 1746-HSCE?
A: The module supports up to 1 MHz per channel in differential mode and 250 kHz in single-ended mode.
Q: Can the 1746-HSCE operate with quadrature encoders?
A: Yes, it supports quadrature counting for position and direction detection.
Q: How many counter channels are available?
A: The module offers two individually isolated inputs that can operate independently or as a single quadrature pair.
Q: What types of sensors can be connected?
A: It is compatible with TTL, differential line-driver, and open-collector pulse sources.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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