There are 2 types of Plant Monitor Layouts; Automatic and Manual.
Automatic Layouts allow you to set a time range, between 1 hour and 31 days, that automatically generates a layout of all characteristics active in that time range. Each Station Row represents a single data collection station. Automatic Layouts cannot be edited or saved.
Manual Layouts are configured by a user. While each Station Row can only represent a single data collection station, a single data collection station can be added to multiple rows, depending on how you want to organize your processes. Characteristic cells can be added to each Station Row. Spacer rows can also be added manually. A Spacer Rows’ text is always blue.
Manual Layouts can be saved as either a Public Layout or a Private Layout. Public Layouts, when saved, are available to all WinSPC users who have permissions to use Plant Monitor. Private layouts are only visible to the user who created it.
Characteristics in a Plant Monitor Layout are represented by individual cells. The cells can display different visualization elements like flashing, colors, and numbers. These different effects have a certain meaning as denoted below.
In a Plant monitor layout, unacknowledged violations will be denoted by the characteristic’s cell color as flashing. Clicking on the characteristic’s cell will bring up the Violation Browser where violations can be viewed and acknowledged (Violation Browser is not covered in this article). When all violations, for the characteristic cell, have been acknowledged, the cell will change from flashing to solid. The color the characteristic cell will be determined by color of the last subgroup collected in that characteristic.
In a Plant monitor layout, the color of the characteristic’s cell is determined by which subgroup level test was violated. These colors are the same color as they appear in Control Charts across WinSPC. The following is a list of the standard WinSPC colors and their meaning:
Indicates there are no test result records, suggesting that no data for that characteristic has been collected at the station, the characteristic data is not subject to a test or the test result records have been deleted. (Note: Test result records are deleted when their corresponding characteristic or Collection Plan is deleted. They are also deleted if they are thirty days old and the database used for the WinSPC implementation is an Oracle or InterBase database. If the WinSPC database platform used is Microsoft SQL Server, the DBSweep utility, contained in the WinSPC Remote Directory must be run to delete old test result records.)
■ – Green
Indicates the test result records contain no violations and the corresponding process is considered to be In Control.
■ Solid Yellow
Indicates the test result records contain one or more Trending violations and that these have all been acknowledged.
■ – Solid Purple
Indicates the test result records contain one or more Mixture/Stratification violations and that these have all been acknowledged.
■ – Solid Red
Indicates the test result records contain one or more Out-of-Control violations and that these have all been acknowledged.
■ – Flashing Yellow
Indicates the test result records contain one or more Trending violations and that, of these, one or more are unacknowledged.
■ – Flashing Purple
Indicates the test result records contain one or more Mixture/Stratification violations and that, of these, one or more are unacknowledged.
■ – Flashing Red
Indicates the test result records contain one or more Out-of-Control violations and that, of these, one or more are unacknowledged.
■ – Solid White
This cell, at the right end of each Station Row of a Manual Layout, allows you to add new characteristic cells to the rows of that Layout.
If a characteristic’s test result records contain multiple types of unacknowledged violations, the cell color will be that of the most severe violation. The levels of severity (from highest to lowest) are:
The cell color will indicate the highest severity level, and will change to the color of the most severe unacknowledged (flashing) violation. If there are no unacknowledged (flashing) violations, the cells will display the color of the most recent subgroup collected.
For example, if an Out-of-Control violation, a Mixture/Stratification violation and a Trending violation have occurred in the same characteristic, then the characteristic’s cell will be red. This is because, by default, Out-of-Control violations are regarded as the most severe.
If a number is present in a flashing characteristic cell, this indicates that the characteristic has multiple violations that are unacknowledged (2 or more). The specific number in the cell represents the number of unacknowledged violations. For example: The number ‘4’ contained within a cell indicates four unacknowledged violations. A flashing cell with no number indicates the characteristic has only one violation.
A white triangle in the upper left corner of a cell indicates that, on some workstation in the organization, the characteristic’s collection plan is open in the Data Collection module.
Red Row Descriptor
When a Row Descriptor turns red, this indicates that this station has been removed from the list of stations in the Administrator Window.