The Omron CP1W-EXT01 is a compact 20-point I/O expansion unit designed for the CP1 series of programmable logic controllers (PLCs). It features a Fujitsu-compatible connector interface and requires two I/O connectors for operation. The unit provides 12 input points rated for DC24V, along with 8 output points that utilize a transistor (sourcing) type configuration. No timer function is included in this model.

Despite its small form factor, the CP1W-EXT01 integrates a wide range of features essential for effective machine control. The CPU module itself is available in various models with DC power supply, offering options such as relay or transistor output, connector or terminal block connections, and the presence or absence of a real-time clock. This allows users to select the most suitable output type and I/O point count based on specific field requirements.

Additionally, the CP1W-EXT01 supports a flexible expansion system. It is compatible with general-purpose I/O units offering 8, 10, 16, 20, 24, or 32 points. By combining multiple expansion units, the system can control up to 192 I/O points, providing scalable and efficient solutions for a wide range of automation applications.