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The "Enabled" option switches the control on or off. (Before editing the options, it is always best to switch the control off first to prevent incorrect server queries).
When Server watching is enabled:
The "Server 1" option specifies the first server to be controlled. (This field is required)
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The "Max Timeout(s)" option specifies the maximum time in seconds a server can take to be counted as unreachable.
When PI watching is enabled:
The “PI Server“ option specifies the PI Server from witch the PI tag gets periodically read.
The “PI Tag“ option specifies the PI Tag that is periodically read from the PI Server.
Note: This PI Tag needs to change its value at least once every Data update (every 5 seconds) to use PI watching.
The “Max skipped PI updates“ option specifies how many PI updates can be skipped until the PI System is considered unresponsive.
The “Warn Offset“ option specifies how many skipped PI updates before a Page reload this control should start warning you.
The “Max Timeout“ option specifies how long in seconds no PI Update can occur until the PI System is considered unresponsive.
When Static Refreshing is enabled:
The “Intervall“ option specifies in wich frequency in seconds should the Display be reloaded.
Functionality of the Control
tbdFunctionality depends what Methods are enabled (multiple Methods can be activated at the same time).
When Server Watchdog is enabled:
If only one server is stored:
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It is automatically switched to the other server in case of failures, if necessary.
When PI Watchdog is enabled:
Two things happen every Data update:
Normal PI Updates will be checked for integrity
The PI Tag is read from the PI Server to check if data can be read and if data can still change on the PI side (The used PI Tag should be a value that is changing every 5 seconds)
If the specified amount of PI Updates gets skipped the Display will be reloaded.
The Display will also be reloaded when the specified amounts of seconds passed without a single update.
This is why this Method should only be used when using a real time Data Display. (only then there are periodical data updates)
When using Static Refreshing:
The Display will be reloaded periodically in a specified amount of time.
Default Configuration
The configuration file "weruPIVisionSuiteConfig.js" is located on the PI Vision Server within /PIVision/Scripts/app/editor/symbols/ext/libraries and contains the default configuration of the PI Vision Suite.
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