Campbell-scientific CR9000X Measurement and Control System Manual de usuario descargar pdf (Pagina 331)

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Section 9. Datalogger Control

9.1 Program Structure/Control

BeginProg, EndProg, Exit

BeginProg and EndProg are used to mark the beginning and end of a

program. Exit is used to exit the program

Syntax

BeginProg

...

[Conditional]

Exit..

EndProg

BeginProg marks the end of Variable, DataTable, Subroutine, and user

defined Function declarations and the beginning of the main program.

BeginProg Example

This program segment uses BeginProg and EndProg to mark the beginning and

end of a program.

BeginProg

...

If Flag(1) then Exit...

EndProg

Call

The Call statement is used to transfer program control from the main program

to a subroutine.

Syntax

Call SubName(List of Variables) or

SubName(List of Variables) or

SubName

Remarks

Use of the Call keyword when calling a subroutine is optional.

The Call statement has these parts:

Part Description

Call Call is an optional keyword used to transfer program

control to a subroutine.

SubName The Name parameter is the name of the subroutine to call.

List of Variables Optional. Only needed when it is desired to pass variables

or values to the subroutine. The list may contain variables,

constants, or expressions that evaluate to a constant that

should be passed into the variables declared in the

subroutine. Values of variables passed can be altered by

the subroutine. If the subroutine changes the value of the

matching subroutine declared variable, it changes the

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