Properties

Availability

The predefined functions can be called from the User Interface and the Control, and can also be used in data point functions and alerting actions. The precise availability is given in the individual descriptions of each function.

The abbreviations indicate where the function concerned is available:

• UI (User Interface): Control scripts that are either called from menus or are linked to graphical objects in the parameter setting.

• CTRL (Control): Called from the Control manager.

• DP (data point function or alerting action): Function call in data point functions or alerting actions.

Waiting control functions

Control functions with the letter W block the execution of a script until a response is received from the Event Manager. The return value from the function only indicates whether an error occurred before the function call was issued, but not whether the message received contains an error. Errors are stored in a separate variable. This can be checked and handled in the Control system using the function getLastError() (see waiting Control functions).