Allen-Bradley 1746-HSCE2 SLC 500 High-Speed Counter Module

June 25, 2026 • 2 min read • wayne • Science

Product Summary

The 1746-HSCE2 is an intelligent multi-channel high-speed counter module for the SLC 500 platform. This module handles precise counting, totalizing, and position monitoring tasks. It accepts differential or single-ended encoder signals with a maximum frequency of 1 MHz.

Theme Option B: Step-by-Step User & Installation Guide

Understanding Your Module’s Inputs

The 1746-HSCE2 provides six input channels labeled ±A1, ±B1, ±Z1, ±A2, ±B2, and ±Z2. Each channel accepts signals within a voltage range of 4.2V DC to 12V DC. You must also configure the module for 10V DC to 30V DC operation.

Configuring the Input Voltage

You must set the nominal input voltage to either 5VDC or 24VDC. The module then operates within its specified voltage range automatically. A setting of 5VDC allows a range of 4.2V to 12V. A setting of 24VDC allows a range of 10V to 30V.

Wiring for Quadrature Counters

You can configure the module for two quadrature counters using channels A and B. The Z input channel stores, holds, and resets the counter data. The module requires a minimum phase separation of 200 ns between signals.

Connecting the Outputs

The module has eight outputs with four being real and four virtual. The real outputs provide a sourcing voltage range of 5-30 VDC. Each output channel can handle a maximum on-state current of 1.0 A.

Managing Signal Integrity

You must route the input cable away from high-frequency noise sources. The module may accept false pulses on low-frequency signals with noise. Proper cable shielding will lead current away from the input channels.

Using the Module Remotely

You can use the 1746-HSCE2 with the 1747-ASB Remote I/O Adapter module. This configuration allows the counter module to function as a RIO component. The module operates with all SLC 500 CPU processors.