PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1746-HSCE is a high-speed counter module designed for the SLC 500 control platform. It features one bidirectional counting channel capable of processing frequencies up to 50 kilohertz. Supported input options include quadrature encoder signals, pulse and direction inputs, and up or down pulses. The hardware occupies a single slot in an SLC 500 chassis.
This module includes four open collector outputs rated for 5V DC, 12V DC, or 24V DC operation. It supports distinct operational modes, including range mode, rate measurement mode, and sequencer mode. Signal throughput times reach 1.8 milliseconds in sequencer mode and 3.9 milliseconds in range mode. Electrical isolation tested at 1500 volts protects backplane circuits from field electrical disturbances. The module connects directly with modular SLC 5/02 and higher processors across the backplane.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Number of Counting Channels | 1 Bidirectional Channel |
|---|
| Number of Outputs | 4 Outputs |
|---|
| Output Type | Open Collector Outputs |
|---|
| Output Voltage Ratings | 5V DC, 12V DC, 24V DC |
|---|
| Product Line | SLC 500 |
|---|
| Pulse/Direction Input | Supported |
|---|
| Quadrature Input | Supported |
|---|
| Range Operating Mode | Supported |
|---|
| Rate Operating Mode | Supported |
|---|
| Sequency Operating Mode | Supported |
|---|
| Tested Isolation Voltage | 1500 Volts |
|---|
| Throughput Time in Range Mode | 3.9 ms |
|---|
| Throughput Time in Sequencer Mode | 1.8 ms |
|---|
| UPC | 662073893684 |
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| Up/Down Input | Supported |
|---|
| Weight | 0.75 lbs (0.34 kg) |
|---|
| Module Type | High-Speed Counter / Encoder Module (Single Channel) |
|---|
| Compatible Processors | SLC 5/02 and higher |
|---|
| Input Types | Quadrature (A/B/Z), Pulse/Direction, Up/Down |
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| Input Voltage | 5V DC, 12V DC, or 24V DC |
|---|
| Maximum Input Frequency | Up to 50 kHz |
|---|
| Count Range | -32,767 to +32,767 (linear mode) |
|---|
| Outputs | 4 configurable digital outputs |
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| Backplane Current | 320 mA at 5V DC |
|---|
| Operating Temperature | 0 - 60°C (32 - 140°F) |
|---|
TECHNICAL INFORMATION
Features
- One bidirectional counting channel supports input frequencies up to 50 kilohertz.
- Accepts quadrature, pulse and direction, or up and down input signals.
- Four open collector outputs support 5V DC, 12V DC, and 24V DC operation.
- Provides configurable operation in range mode, rate mode, and sequencer mode.
- Achieves throughput times of 1.8 milliseconds in sequencer mode.
- Tested electrical isolation of 1500 volts protects internal chassis backplane circuits.
TECHNICAL INFORMATION
Applications
- High-speed bidirectional pulse counting in SLC 500 control systems.
- Quadrature encoder pulse input acquisition and monitoring.
- Pulse and direction signal tracking for industrial machinery.
- Frequency and rate measurement in high-speed sensing circuits.
TECHNICAL INFORMATION
Connections / Interfaces
- Uses the 1746-RT25G connector for field wiring terminations.
- Connects to the SLC 500 backplane via standard chassis slot connections.
- Provides physical screw terminals for counting inputs and four digital outputs.
TECHNICAL INFORMATION
Installation Guidelines
- Disconnect chassis power before inserting or removing the module.
- Slide the module into any available I/O slot in the SLC 500 chassis.
- Ensure top and bottom chassis latches snap securely into place.
- Secure the 1746-RT25G wiring connector to the front of the module.
TECHNICAL INFORMATION
Configuration Guidelines
- Select the operating mode: range mode, rate mode, or sequencer mode.
- Configure linear count limits between negative 32,767 and positive 32,767.
- Assign the four open collector outputs based on selected operating mode parameters.
TECHNICAL INFORMATION
Compatibility
- Operates with modular Allen-Bradley SLC 5/02 and higher processors.
- Installs directly into standard SLC 500 1746 chassis racks.
- Compatible with 1746-RT25G field wiring terminal blocks.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSOperates with modular Allen-Bradley SLC 5/02 and higher processors. Installs directly into standard SLC 500 1746 chassis racks. Compatible with 1746-RT25G field wiring terminal blocks.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the maximum counting frequency of the 1746-HSCE module?
The module accepts counting input frequencies up to 50 kilohertz across its bidirectional channel.
Which processors are compatible with the 1746-HSCE counter module?
The module is compatible with modular SLC 5/02, SLC 5/03, SLC 5/04, and SLC 5/05 processors.
What operating modes does the 1746-HSCE provide?
The module provides three operating modes: range mode, rate mode, and sequencer mode.
What is the market reference price for the 1746-HSCE?
Observed market reference pricing is approximately $216.00 USD. This figure is an indicative reference price only and not a final quotation.
