OMRON CP1H-XA40DT1-D Compact PLC Module
The OMRON CP1H-XA40DT1-D is a powerful and versatile compact PLC module from the highly regarded CP1H series, engineered for a wide array of machine automation and process control applications. This integrated controller combines a high-speed CPU with a substantial number of built-in I/O points, including digital, analog, and pulse capabilities, making it a cost-effective and space-saving solution for original equipment manufacturers and system integrators.
Core to its operation is a high-efficiency processor that supports structured programming, function blocks, and extensive online debugging. The CP1H-XA40DT1-D is capable of handling complex motion control tasks (up to 4 axes) via its high-speed pulse outputs, eliminating the need for external positioning modules in many cases. Its intuitive programming environment, CX-Programmer, offers complete software compatibility.
Technical Specifications
CPU power: 15 ns per basic instruction
Program memory: 32 KB (approx. 20k steps)
Built-in digital I/O: 24 inputs (24V DC) / 16 outputs (transistor)
Built-in analog I/O: 4 inputs (0-10V / 4-20mA) / 2 outputs (0-10V)
High-speed counters: 4 channels (100 kHz each)
Pulse outputs: 4 channels (100 kHz)
Communication ports: RS-232C, peripheral USB (for programming)
Expansion capability: Up to 7 expansion units (I/O, analog, temperature)
Functional Capabilities
Interrupt Tasks: Supports I/O interrupts, scheduled interrupts, and high-speed counter interrupts to prioritize critical events over scan cycle execution.
Positioning Control: The integrated pulse outputs allow direct control of stepper/servo drivers with trapezoidal and S-curve acceleration/deceleration profiles.
Analog Data Processing: The built-in analog channels are fully isolated and feature high resolution (1/4000), suitable for pressure, temperature, and flow feedback.
Data Logging: Internal data memory can be configured to record trace data, which can be viewed via the programming software for trend analysis.
Typical Applications
Packaging Machinery: Synchronizing film feeds, sealing bars, and cutters with analog pressure monitoring.
Small Assembly Stations: Managing pneumatic actuators, sensors, and conveyor motor speeds.
Textile Looms: Controlling tension via analog signals and yarn break detection.
Test Systems: Automating functional testing of electronic components with precise voltage/signal generation.
Installation and Configuration
The CP1H-XA40DT1-D is DIN-rail mountable. Removable terminal blocks allow for streamlined wiring, with clearly marked labels. Configuration of the high-speed counters, pulse outputs, and analog scaling is achieved via the Device Parameter window in CX-Programmer, which automatically generates the necessary register settings. The PLC supports automatic addressing of connected expansion units upon startup.
Environmental Data
This PLC is rated for operation in temperatures between 0°C and 55°C and storage between -20°C and 75°C. It holds EMC and CE certifications, conforms to UL standards, and is IP20 rated for use in protected control cabinets.
Conclusion
The OMRON CP1H-XA40DT1-D PLC module effectively bridges the gap between miniature relays and large modular PLCs. Its integrated design, rich feature set, and robust performance make it an intelligent choice for modern automated machines requiring precise control and connectivity.




