Allen-Bradley 1746-HSCE SLC 500 High-Speed Counter Module
Allen-Bradley 1746-HSCE is an SLC 500 high-speed counter module with one bidirectional counting channel that accepts quadrature, pulse/direction or up/down encoder inputs and drives four open-collector outputs.
Overview
The 1746-HSCE counts at full speed on a dedicated on-board processor, offloading high-frequency pulse training from the SLC processor scan. The single bidirectional channel supports quadrature, pulse/direction and up/down input modes, with range, rate and sequencer operating modes; throughput is 1.8 ms in sequencer mode and 3.9 ms in range mode. Four open-collector outputs rated for 5, 12 or 24 V DC provide direct control of indicator, trip and handshake functions, and the module is tested to a 1500 V isolation voltage.
Key Features
- One bidirectional high-speed counting channel
- Quadrature, pulse/direction and up/down input modes supported
- Range, rate and sequencer operating modes
- Four open-collector outputs; 5 / 12 / 24 V DC output voltage ratings
- Throughput 1.8 ms (sequencer mode), 3.9 ms (range mode)
- Tested isolation voltage 1500 V
- Single-slot SLC 500 module; country of origin Singapore
Technical Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Product Line | SLC 500 (1746 I/O) |
| Series | SLC 500 |
| Part Number / Catalog No. | 1746-HSCE |
| UPC | 662073893684 |
| Product Type | High-Speed Counter Module |
| Counting Channels | 1 bidirectional channel |
| Input Modes | Quadrature / Pulse-Direction / Up-Down |
| Operating Modes | Range / Rate / Sequencer |
| Outputs | 4 open-collector outputs |
| Output Voltage Ratings | 5 / 12 / 24 V DC |
| Throughput Time | 1.8 ms (sequencer) / 3.9 ms (range) |
| Tested Isolation Voltage | 1500 V |
| Slots Used | 1 |
| Dimensions | 14.5 x 3.5 x 14 cm (5.7 x 1.4 x 5.5 in), approx (single-slot SLC 500 module) |
| Weight | 0.75 lbs (0.34 kg) |
| Country of Origin | Singapore |
Applications
The 1746-HSCE suits encoder feedback tasks on legacy SLC 500 lines – length measurement, cut-to-length cutoffs, totalizing and simple positioning where one axis must be tracked exactly regardless of processor scan time. It pairs with differential or single-ended encoders and keeps its four outputs available for at-speed, zero-mark and preset trip functions.
Why Buy from Us
This module is available new in original factory packaging, fully tested and backed by a standard warranty of 1 year. We ship worldwide with careful anti-static packaging and fast dispatch. Quantity discounts and repair/exchange options are available on request.
Documents
| Resource | Title | Link |
|---|---|---|
| Publication | 1746-IN011 – High-Speed Counter Module (1746-HSCE) Installation Instructions | 1746-in011_-en-p.pdf |
| Publication | 1746-UM006 – High-Speed Counter Module (1746-HSCE) User Manual | 1746-um006_-en-p.pdf |

















