OMRON F300-DC I/O Image Processing Unit

The OMRON F300-DC is an integrated I/O and image processing unit designed to bring machine vision capabilities directly into the PLC control environment. This module bridges the gap between conventional sensing and advanced visual inspection, enabling systems to perform presence/absence checks, dimensional measurements, and pattern recognition with minimal integration complexity. The F300-DC streamlines the architecture by eliminating the need for separate vision controllers.

Equipped with a dedicated processor for image manipulation, the F300-DC can execute inspection algorithms in parallel with standard PLC logic scans. Its robust housing protects the sensitive electronics from industrial contaminants, ensuring reliable operation on production lines. The unit features built-in lighting control outputs, simplifying the setup of external illumination for varying object surfaces.

Technical Data

• Sensor type: CCD (monochrome) with 640 x 480 pixel resolution

• Processing speed: 10 inspections per second (typical)

• Internal memory: 16 MB for storing inspection data and patterns

• I/O points: 8 inputs / 8 outputs (PNP), directly addressable as PLC I/O

• Communication: RS-232C and Ethernet (option)

• Power supply: 24 V DC (0.8 A max)

• Dimensions: Compact DIN-rail mounted housing

Key Features

• Edge/Cornerness Detection: Essential for locating objects and guiding robots to pick positions.

• Area/Size Measurement: Calculates surface area or width/height of parts for quality sorting.

• Multiple Inspection Zones: Allows the user to define up to 16 independent regions of interest within a single image.

• Direct PLC Integration: Results are written directly to specific memory bits that the host PLC can read in the next scan cycle without communication delays.

Application Cases

• Electronic Assembly: Verifying component placement on PCBs, such as capacitor orientation and SMD alignment.

• Pharmaceutical Packaging: Checking pill counts, cap sealing, and label legibility.

• Automotive Parts: Inspecting surface scratches on machined components and verifying ring presence.

• Food Industry: Detecting foreign objects and grading fruits based on size/color.

Configuration and Interface

Setting up the F300-DC is managed through a dedicated software interface that allows engineers to capture sample images, adjust thresholds, and define inspection parameters. The unit can be triggered externally via its hardware input or via software commands from the PLC. Real-time images can be output to a monitor for offline analysis and diagnostics, providing a powerful tool for line operators to visualize detections.

Environmental Compliance

The F300-DC operates in environments with temperatures ranging from 0°C to +50°C and humidity between 35% and 85% RH. It complies with industrial EMC standards (EN 61131-2) and carries the CE mark.

Conclusion

The OMRON F300-DC represents a significant value proposition for system integrators, combining the core functions of a PLC I/O module with advanced image processing. This integration simplifies the control architecture, reduces troubleshooting time, and delivers reliable automated visual inspection at a competitive system cost.