Agilent Technologies 5000 Series manual Common Command Headers

8More About Oscilloscope Commands

For example, :CHANnel1:BWLimit ON

Common Command Headers

Common command headers control IEEE 488.2 functions within the instrument (such as clear status). Their syntax is:

*<command header><terminator>

No space or separator is allowed between the asterisk (*) and the command header. *CLS is an example of a common command header.

Program Data Syntax Rules

Program data is used to convey a parameter information related to the command header. At least one space must separate the command header or query header from the program data.

<program mnemonic><separator><data><terminator>

When a program mnemonic or query has multiple program data, a comma separates sequential program data.

<program mnemonic><separator><data>,<data><terminator>

For example, :MEASure:DELay CHANnel1,CHANnel2 has two program data: CHANnel1 and CHANnel2.

Two main types of program data are used in commands: character and numeric.

Character Character program data is used to convey parameter information as alpha Program Data or alphanumeric strings. For example, the :TIMebase:MODE command can

be set to normal, delayed, XY, or ROLL. The character program data in this case may be MAIN, WINDow, XY, or ROLL. The command :TIMebase:MODE WINDow sets the time base mode to delayed.

The available mnemonics for character program data are always included with the commands's syntax definition.

When sending commands, you may either the long form or short form (if one exists). Uppercase and lowercase letters may be mixed freely.

When receiving query responses, uppercase letters are used exclusively.

Numeric Program Some command headers require program data to be expressed numerically. Data For example, :TIMebase:RANGe requires the desired full scale range to be

expressed numerically.

For numeric program data, you have the option of using exponential notation or using suffix multipliers to indicate the numeric value. The following numbers are all equal:

28 = 0.28E2 = 280e-1 = 28000m = 0.028K = 28e-3K.

534 Agilent InfiniiVision 5000 Series Oscilloscopes Programmer's Reference