SKU: CS1W-CT021
Omron CS1W-CT021 High-Speed Counter Unit
Omron CS1W-CT021 is a high-speed counter unit for CS1 series PLCs, enabling high-frequency pulse counting.
USD 466.00 per unit, volume discounts available
- In stock, ships in 24h
- 100% genuine Omron
- 1-year manufacturer warranty
- Worldwide delivery
Key Features
- CS1W high-speed counter unit for pulse-intensive applications
- Designed for encoder and event pulse acquisition tasks
- Extends modular PLC capability beyond standard input speed limits
- Suitable for motion-adjacent monitoring and counting functions
- Supports deterministic data capture in high-throughput machinery
- Integrates with CS-series modular controller architectures
High-Speed Pulse Counting for Modular CS1 Architectures
CS1W-CT021 is part of Omron CS1W special-function unit lineup and is used when automation systems require high-speed pulse counting beyond standard digital input capabilities. Typical use cases include encoder pulse counting, positioning feedback events, speed-related monitoring, and precise event accumulation in machine operations. This unit is often selected in packaging, material handling, and process equipment where fast, deterministic pulse acquisition is essential to control quality and throughput. During engineering, teams should validate signal levels, pulse frequency, channel assignment, filtering strategy, and synchronization with PLC scan logic. Correct shielding and grounding practices are also important for noise immunity in high-speed input circuits. CS1W-CT021 is generally deployed where modular PLC platforms must handle fast pulse-domain tasks with maintainable cabinet integration.
Typical Applications
- Encoder pulse counting for machine position tracking
- Speed and throughput event monitoring in conveyors
- Cut-to-length and indexing count supervision
- Process pulse accumulation in production equipment
- High-speed trigger counting where standard inputs are insufficient
- Retrofit upgrade for legacy pulse acquisition limitations
Buying Checklist
- Validate expected pulse frequency against counter unit capability.
- Confirm encoder signal type and electrical interface compatibility.
- Design shielded wiring and grounding to reduce noise-induced errors.
- Plan PLC data handling and scaling strategy for counted values.
- Include commissioning tests for rollover, reset, and event integrity.
Technical Specifications
| Model | CS1W-CT021 |
|---|---|
| Series | CS1W |
| Type | High-Speed Counter Unit |
| Counter Channels | 2 channels |
| Max Frequency | 500kHz |
| Input Type | Line driver, open collector |
| Compatible CPUs | CS1 series |
| Operating Temperature | 0 to +55°C |
| Mounting | CS1 backplane |
Frequently Asked Questions
What's the maximum count frequency?
500kHz per channel. Suitable for high-speed encoder feedback.
How many channels does this unit have?
2 independent counter channels. Each channel configurable independently.
What encoder types are compatible?
Line driver (RS-422) or open collector encoders. Check encoder output type.
Do I need to configure this unit?
Yes, configure in CX-Programmer. Set count mode, preset value, comparison values.
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