Adjusting the Contrast Presence/Absence Tool Parameters

Note: This topic describes the user interface when connected to an In-Sight 2000 series vision sensor. If connected to In-Sight vision systems, refer to the In-Sight Vision System section of Adjusting the Contrast Presence/Absence Tool Parameters.

After the tool’s region has been positioned, you can optimize the tool for your application.

Displays a green circle or a red rectangle to indicate success and failure, respectively.

Sets the minimum and maximum contrast levels. You can manually set the values by adjusting the handles or by entering values in the corresponding edit boxes.

Tip: You can also move the handle by using ARROW keys (UP, DOWN, RIGHT and LEFT).
  • Left Handle: Sets the minimum acceptable average greyscale limit (0 - 255).
  • Right Handle: Sets the maximum acceptable average greyscale limit (0 - 255).
  • Result Indicator: Shows the average greyscale value of the pixels within the region. If the indicator is between the left and right handles, the tool passes and the result indicator is green. Otherwise, the tool fails and the result indicator is red.
PASS
FAIL
Note: The Result is displayed when hovering over the slider control.

Automatically sets the range limits to be the most recent tool result, +/- 10% of the maximum result value for the tool. For example, if the maximum result value for the tool is 255 and the most recent tool result is 150, then clicking the Auto button will set the minimum range limit to 125 (=150 - 25), and the maximum range limit to 175 (=150 + 25).

When enabled, the tool fails if the result falls within the range limits. (Default = Off)

Pass/Fail (Invert) Pass/Fail
Pass/Fail (Invert) Pass/Fail

Defines the name of your inspection tool. The default name is “Contrast_1” (if it is the first Pattern tool added to the job, otherwise it will be incremented, e.g. “Contrast_2”, “Contrast_3”, etc.).

Defines which image the tool will utilize to perform its inspection; the unfiltered, acquired image (the default setting), or the output image of an Image Filter Tool. This control is only enabled if an Image Filter Tool has been added.

Defines whether or not the tool's pass/failure status should be included in the job's overall pass/fail status; by default, it is checked and will be included in the job's overall pass/fail status. Uncheck the check box to keep the tool's pass/failure status separate from the other tools in the job. This control should be unchecked if a tool is expected to fail; for example, if two PatMax Patterns Identification Tools were being used to determine whether or not the part was a right-hand or left-hand part, one of the tools would be expected to fail every time. This situation would result in the job failing every time, regardless of which side of the part was identified, were the checkbox checked.

Defines when and whether or not the inspection tool should run (default setting is “On”).

  • Select “Off” if you want to disable the tool.
  • Select an Input line if you want the tool tied to a specific discrete input line, where it can be turned On or Off (a High signal, 1, is On, a Low signal, 0, is Off). Connecting the tool to an input allows a control system, such as a PLC, to determine which tools should run, and when.

Selects a fixture for the tool. The Fixture button turns orange when the fixture control is enabled.

Note: This control can only be enabled if another tool that defines a fixture has already been added.

A comment that describes the purpose of the tool (by default, the field is blank). Up to 255 alpha-numeric characters or 127 Asian language characters may be used.