Overview
The Allen-Bradley 1720-L732 /C is a Cardlok-format up-down counter module for legacy PLC systems. This module provides counting and pulse-input capabilities in a compact cardlok form factor, suitable for applications requiring up-down counting functionality in industrial control environments.
Key Features
- Cardlok form factor for modular PLC expansion
- Up-down counting capability for bidirectional pulse measurement
- Designed for legacy Allen-Bradley PLC systems
- New in box condition ensures reliable operation
- Compact design suitable for space-constrained installations
Technical Specifications
Due to the legacy nature of this module, comprehensive specification data may be limited. Key details include:
- Product Series: Cardlok
- Module Type: Up-Down Counter
- Form Factor: Cardlok plug-in module
- Condition: New in Box
- Manufacturer: Allen-Bradley (Rockwell Automation)
Typical Applications
- Production line counting and monitoring
- Pulse frequency measurement in industrial machinery
- Inventory and material tracking systems
- Legacy equipment retrofits and maintenance support
- Process control systems requiring bidirectional counting
Compatibility & Replacements
Compatible With
- Legacy Allen-Bradley PLC systems supporting Cardlok modules
- Allen-Bradley SLC 500 and similar modular platforms (verify with system documentation)
- Industrial automation control systems using Cardlok expansion slots
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 1720-L732 /C is a specific legacy module and may have specific replacement requirements. Do not assume interchangeability with other counter modules without verification.
Works With
- Allen-Bradley legacy PLC programming software (RS-Logix, ladder logic environments)
- Cardlok-based I/O systems and chassis
- Standard industrial pulse and counting applications




