Agilent Technologies B1500A Podręcznik Użytkownika Pobierz pdf (Strona 469)

100

101

Agilent B1500 User’s Guide, Edition 7 8- 19

Built-in Programming Tool

Script Program Statements

The program statements are used to define the test execution flow on the Test

Contents tab screen of the Test Definition window. On the screen, click the Program

Component tab. The program statements are listed in the component selection area.

See also “Program Component” on page 6-26.

Local Variable

finition

This statement d

efines the local variables used in the test definition. For the setup

editor, see “Local Variable Definition” on page 6-24. For the available names and

variable types, see “Variables and Expressions” on page 8-3.

The local variables are effective only for th

is test definition.

ASSIGN This statement enters a value or expression to

the variable as follows:

where, <variable> is the variable to define, and <definition> is the value or

expression

BLOCK Beginning of the BLOCK/END BLOCK block. The statements are added to the

rogram list

as a pair. The test execution flow (program) must be defined between

the statements. Optionally, the following statements can be used in this block.

• ON ERROR

This statement enables an event-initiated branch performed when an error

occurs. The

routine to be performed when error occurs must be defined between

ON ERROR and END BLOCK or between ON ERROR and FINALLY.

• FINALLY

This statement enables an event-initiated branch performed just before

terminating

the block. The routine to be performed before terminating the block

must be defined between FINALLY and END BLOCK.

The statements or components between the BLOCK and END

BLOCK statements

are performed from top-down. If no error occurs during program execution, the

routine below FINALLY is executed and the block is terminated.

If an error occurs, the error code is stored in th

e @ERROR system variable, the

routine below ON ERROR is executed, and the block is terminated. If FINALLY is

used, the routine below FINALLY is executed before the block is terminated.

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