Sigma LBA-710, LBA-714PC, LBA-300, LBA-712 manual Spatial Coordinates, 10.6.3 PFS? Pass/Fail Status

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10.6.3PFS? - Pass/Fail Status

To retrieve the current pass/fail status, you must send the PFS? command.

The LBA-PC responds by repeating PFS followed by a “key=value” parameter for each value that has pass/fail testing enabled. The ‘key’ is an ASCII text string identical to the label displayed in the left- hand column of the results window. The ‘value’ is a boolean, where 0 equals fail and 1 equals pass.

The following example describes how the host controller retrieves the current pass/fail testing status. Total, Peak, Centroid X, and Centroid Y are being tested. Total passed, Peak failed, Centroid X failed, Centroid Y passed.

Host sends

:PFS?

LBA-PC sends

PFS

Total=1;

Peak=0;

Centroid X=0,

Centroid=1(^END)

10.7 COORDINATE SYSTEMS

10.7.1Spatial Coordinates

The visible spatial coordinate system of the LBA-PC is called world coordinates. World coordinates are used for computed centroid location and peak location, aperture location, cursor and crosshair location, and pass/fail centroid and peak locations. World coordinates are defined by the Origin Location, ‘Lens’ setting, and Pan Location. The world coordinates system is the only coordinate system that is used when using the LBA-PC in the local, non-remote mode.

When operating the LBA-PC remotely, you must be aware of two other coordinate systems called detector and frame coordinates. Detector coordinates are represented on the LBA-PC display by the Pan/Zoom window. Detector coordinates are used to describe the active pixels of the camera detector. Frame coordinates are used to describe the frame data stored in the frame buffer.

The figure below shows the relationship between the Pan/Zoom window, the capture window, frame data, and the Beam display window. The Pan/Zoom window represents the active area of the camera detector. The capture window, represented in the LBA-PC display by the dark gray square inside the Pan/Zoom window, represents the location and size of the area of the detector that will be digitized. The digitized data is placed in the frame buffer. Data in the frame buffer is then converted to false color or gray scale and displayed in the beam window.

Operator’s Manual 200 LBA-PC