Omron CJ1W-CT021 Counter Module – Dual Channel High-Speed Pulse Counter for Industrial Automation
The Omron CJ1W-CT021 Counter Module is a powerful and precise high-speed counter unit designed for advanced industrial automation and process control applications. With dual-channel input capability, the CJ1W-CT021 provides high-speed pulse counting, direction detection, and accurate event control within PLC systems. It ensures reliable operation and seamless integration with Omron CJ-series controllers, making it an essential module for automation engineers and OEMs seeking dependable performance and compact design.
Dual Channel High-Speed Counter Input
The CJ1W-CT021 features two high-speed counter inputs capable of handling frequencies up to 50 kHz per channel. These channels can be used independently or combined for advanced counting and direction control tasks. The module supports various input modes such as up/down counting, phase differential, and pulse + direction, providing flexibility for multiple machine control applications.
Its precision input handling ensures accurate event measurement and reliable counting performance even in fast-moving automation systems. This makes the CJ1W-CT021 ideal for monitoring position, rotation speed, material feed length, or product count in production environments.
Reliable and Accurate Performance
Built with Omron’s high-quality signal processing technology, the CJ1W-CT021 delivers reliable performance in harsh industrial conditions. It minimizes signal noise and maintains consistent operation even in environments with electrical interference or vibration. The module supports various input types (NPN/PNP) for flexible wiring configurations and ensures fast and stable response in real-time control systems.
In combination with Omron PLCs, the CJ1W-CT021 enables precise synchronization between mechanical movements and digital process control. This high level of accuracy is vital in production systems requiring exact timing and positioning.
Compact Design and Robust Construction
The compact design of the CJ1W-CT021 allows for easy installation in limited spaces while maintaining full functionality. Its rugged housing and industrial-grade connectors ensure durability and long-term stability. Whether mounted in small control cabinets or integrated into large distributed systems, it provides dependable operation under continuous load.
Thanks to its robust construction, the CJ1W-CT021 is suitable for demanding applications in packaging, material handling, robotics, and machine tool systems, where reliability and space efficiency are crucial.
Seamless System Integration and PLC Compatibility
The CJ1W-CT021 Counter Module is fully PLC compatible with Omron CJ1 and CJ2 series controllers. It communicates via the high-speed backplane bus for instantaneous data exchange, ensuring real-time updates and efficient signal processing. Configuration and monitoring are simplified using Omron’s CX-Programmer software, which allows users to adjust counter parameters, set comparison values, and monitor real-time data easily.
Its seamless system integration capability ensures smooth coordination between counting operations and process control sequences, optimizing overall system performance and throughput.
Applications in Industrial Automation
The Omron CJ1W-CT021 module is used in a variety of industrial automation applications, including:
- Position and rotation control for motors, conveyors, and spindles.
- Flow and length measurement in production lines.
- Material feed counting and speed regulation.
- Event detection for packaging, printing, and labeling machines.
- Factory automation systems requiring high-speed pulse inputs and reliable counting.
Its flexibility and precision make it suitable for both discrete manufacturing and continuous process environments.
Durable and Easy to Install
The Omron CJ1W-CT021 Counter Module is designed for easy installation and maintenance, featuring front-access terminals for straightforward wiring and LED indicators for status monitoring. Its durable build ensures extended service life, minimizing downtime and maintenance costs.
Engineers appreciate its modular design, which simplifies system expansion and allows for quick module replacement without interrupting other system functions. This design supports efficient maintenance and long-term operational reliability.
In Stock and Available for Fast Delivery
EMACONN offers the CJ1W-CT021 in stock with official distributor pricing and fast delivery worldwide. Each module is fully tested and certified according to Omron’s industrial standards, ensuring quality and performance consistency. Customers receive genuine OEM parts with technical support and reliable global logistics for quick project turnaround.
Buy Omron CJ1W-CT021 Online – Dual Channel High-Speed Counter Module
You can buy the Omron CJ1W-CT021 Counter Module online from EMACONN. We provide genuine Omron automation products with warranty, expert assistance, and global shipping options for your automation projects.
Why Choose the Omron CJ1W-CT021 Counter Module?
- Dual-channel high-speed counter for precise control and measurement.
- Compact design ideal for space-constrained control systems.
- Reliable performance under demanding industrial conditions.
- Seamless PLC integration with Omron CJ-series controllers.
- In stock with fast delivery and competitive pricing from EMACONN.
The Omron CJ1W-CT021 Counter Module combines speed, precision, and reliability in a compact, durable package. It is engineered to deliver high-speed pulse counting and accurate event detection in advanced automation systems, ensuring consistent control and dependable performance in industrial environments. For engineers and system designers seeking efficiency and accuracy, the CJ1W-CT021 is the ideal choice.
Enhanced Counting Stability and Precision for Motion Control
The CJ1W-CT021 delivers exceptional counting stability, even in high-speed motion control applications where precise timing is essential. Its advanced pulse-processing engine ensures each incoming pulse is evaluated with minimal delay, enabling highly accurate position and speed detection. This makes it particularly valuable for servo systems, stepper-motor indexing, and linear encoder feedback, where even the smallest counting error can lead to misalignment or production defects.
Industrial environments often introduce electrical noise, vibration, or mechanical fluctuations that can distort pulse signals. The CJ1W-CT021 minimizes these issues with built-in noise filtering and signal conditioning technology. As a result, engineers can rely on clean and accurate pulse readings, improving overall system responsiveness and reducing the risk of operational drift during long production cycles.
Optimized for Modern Automation Lines and High-Speed Production
In modern high-speed manufacturing, pulse-based measurement plays a critical role in ensuring product consistency and timing accuracy. The CJ1W-CT021 supports precise event triggering through comparison functions that allow the PLC to react instantly when preset count values are reached. This enables real-time actions such as stopping conveyors, changing motor speeds, shifting machine states, or activating alarms.
Its dual-channel architecture allows simultaneous monitoring of separate processes, significantly boosting system efficiency. Whether used in packaging, printing, labeling, or robotic assembly, the module provides engineers with the flexibility to manage multiple motion signals from a single compact unit. This reduces hardware costs and simplifies system design while maintaining high accuracy across the entire automation workflow.

