Agilent Technologies A.18.00 Instrukcja Użytkownika Pobierz pdf (Strona 409)

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Chapter 7, IBASIC Controller

PROGram Subsystem

Syntax

PROGram[:SELected]:STRing <varname>{,<svalues>}

Example setting the value of a simple string variable

OUTPUT 714;"PROGram:SELected:STRing Variable,’data’"

OUTPUT 714;"PROG:STR Variable,’data’"

Example of setting the value of a string array with 3 elements of 5 characters each, such as Ar-

ray$(2)[5]

OUTPUT 714;"PROGram:SELected:STRing Array,’12345’,’12345’,’12345’

OUTPUT 714;"PROG:STR Array,’12345’,’12345’,’12345’"

NOTE: With Option Base 0 set in IBASIC, array indexing starts at 0.

:STRing? <varname>

The :STRing? query command is used to return, to an external

controller, the current value of string variables or arrays in an IBASIC program in the

Test Set. <varname> is the name of an existing string variable or string array in the

IBASIC program.

NOTE: If the variable name <var_name> is longer than 12 characters it must be sent as string data

(<var_name> enclosed in quotes). For example, OUTPUT 714;"PROG:STR? ’Var_name’".

Attempting to send a <var_name> longer than 12 characters as character data

(<var_name> not enclosed in quotes) will generate the following error:

HP-IB Error: -112 Program mnemonic too long

NOTE: If the programmer wishes to append the IBASIC ‘$’ string identifier onto the string variable name,

the string variable name must be sent as string data, that is enclosed in quotes. For example,

OUTPUT 714;"PROG:STR? 'Var_name$'"

Appending the IBASIC ‘$’ string identifier onto the string variable name without

enclosing the string variable name in quotes will generate the following error:

HP-IB Error: -101 Invalid character.

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