Hp E1368A User Manual download pdf (Page 49)

Command Separator A colon (:) always separates one command from the next lower level

command as shown below:

ROUTe:SCAN:MODE?

Colons separate the root command from the second level command

(

ROUTe:SCAN) and the second level from the third level (SCAN:MODE?).

Abbreviated

Commands

The command syntax shows most commands as a mixture of upper and

lower case letters. The upper case letters indicate the abbreviated spelling

for the command. For shorter program lines, send the abbreviated form.

For better program readability, you may send the entire command. The

instrument will accept either the abbreviated form or the entire command.

For example, if the command syntax shows

MEASure, then MEAS and

MEASURE are both acceptable forms. Other forms of MEASure, such as

MEASU or MEASUR will generate an error. You may use upper or lower

case letters. Therefore,

MEASURE, measure, and MeAsUrE are all

acceptable.

Implied Commands Implied commands are those which appear in square brackets ([ ]) in the

command syntax. (Note that the brackets are not part of the command and

are not sent to the instrument.) Suppose you send a second level command

but do not send the preceding implied command. In this case, the

instrument assumes you intend to use the implied command and it responds

as if you had sent it. Examine the

SOURce subsystem shown below:

[SOURce:]

PULSe

:COUNt <

count>

:COUNt? [<MIN | MAX>]

:PERiod <

period>

:PERiod? [<MIN | MAX>]

The root command [SOURce:] is an implied command. To set the

instrument’s pulse count to 25, you can send either of the following

command statements:

SOUR:PULS:COUN 25 or PULS:COUN 25

48 HP E1368A/69A/70A Command Reference Chapter 4

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Hp E1368A User Manual Page 49