Figure 16.   Ace Comp Manager view shows components in the Ace App

When the ACE App is running it constantly scans the components. The scan frequency is configurable via Level and Order settings. Scan “Level” is how you configure the frequency of component scanning . See Scan Period property (50 ms default) in the ACE App Property Sheet view. Scan Level 1 (not visible) uses the configured Scan Period rate. For Scan Levels 2-4 (values are 2, 4, 8 by default), each value is a multiplier of the configured Scan Period value. For example, Level 2 has a value of 2 which means it will scan every 100ms (2 x 50ms). Useful if you have components that you want to have operate really quickly to be responsive.

Order is the order of execution within a scan level. For example, you can drag 3 Ace Compare components onto the wire sheet and link them (1st to the 2nd, the 2nd to the 3rd) to create a logic chain. Save those changes and switch to the Ace Comp Manager view. You will see 0 as the Order values of those components. But, you can click Edit and set the Level and Order manually, or set order by clicking the Force Order button to evaluate the components of the App and determine an execution order based on that.

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