PanelScan Integration Guide Specifications PanelScan is available in two configurations: Standard and Wide . • PanelScan Standard – PanelScan Standard uses a single 6,144-pixel-wide line scan camera. When the camera is placed at the specified distance from the part as shown in the drawing below, it has a field of view of 250 mm (10”) wide and can read symbols up to this panel width. • PanelScan Wide – PanelScan Wide uses two 6,144-pixel-wide line scan cameras side-by-side with a 1 inch overlap to cover up to 450 mm (18”) of panel width. Both PanelScan Standard and PanelScan Wide cover a panel length of up to 520 mm within a field of view of 570 mm (22.5”).
• X Resolution – At the specified distance, the camera has a resolution of 0.00163” per pixel, or 1.63 mils . • Y Resolution – PanelScan does not use an encoder to trigger each row of pixels in the image. Images are captured in a time-based mode where each line is acquired within a certain “exposure” time. The speed of the conveyor must be matched to the X Resolution of the system to make them both even. When the speed is matched to the X Resolution, a circle will show with an even width and height.
Note that the lack of an encoder makes the system more economical and easy to set up, but it also means that the panels must be moving at a constant speed under the PanelScan camera and they must not stop until the full board is read. • 1D Symbol Reading Capability – With this resolution, the system is capable of reading high quality 1D symbols down to 3.3 mils with 2 pixels across a thin bar. Note that the system is able to read at this resolution for two reasons: the first is that it uses a high quality lens with a very good MTF ratio, and the second is that it uses a Rect Warp to magnify symbols by 200% before decoding, which helps the algorithm to decode.
Symbols must be of very high quality to be read at these small sizes. Performance on DPM marks will be slightly lower. • Data Matrix Reading Capability – With this resolution, the system is capable of reading high quality Data Matrix symbols down to 5 mils with 3 pixels per cell. Note that the system is able to read at this resolution for two reasons: the first is that it uses a high quality lens with a very good MTF ratio, and the second is that it uses a Rect Warp to magnify symbols by 200% before decoding, which helps the algorithm to decode. Symbols must be of very high quality to be read at these small sizes. Performance on DPM marks will be slightly lower.
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