Agilent Technologies 6051A Provozní pokyny stáhnout pdf (Strana 21)

Introduction To Programming

Figure 3-3. What the Semicolon Does

Note There is no single command to move the parser back two colons. In example a above, backing up from

Level 2 to Level 1 requires a return to the root.

Getting Back to the Root

To go from a command in one branch to a command in another branch, you must first return to the root. You can do this by:

■ entering a new-line character. This is symbolized by (<nl>) and can be any control character that starts a new line, such

as:

■ linefeed (LF).

■ an end-of-line (EOI).

■ entering a semicolon followed by a colon (;:). This instructs the parser to return to the root.

Looking at Figure 4-2 in the Language Dictionary, suppose you wanted to set two trigger levels; the CURRent level to 15.5

and the VOLTage level to 25.5. Either of the following commands would do this.

CURR:TRIG 15.5 < nl >

VOLT:TRlG 25.5 < nl >

CURR:TRIG 15.5;:VOLT:TRlG 25.5 < nl >

Similarly, the following query would return the present values of current, power, and voltage and the state of the output port.

MEAS:CURR?;POW?;VOLT?;:PORT0? < nl >

Note The < nl > notation is assumed and will be omitted in later programming examples.

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Agilent Technologies 6051A Provozní pokyny Strana 21