Boonton 4530 Peak Power Meter User Manual - Manual (Page 77)

4-3
Boonton Electronics Chapter 4
4530 Series RF Power Meter Remote Operation
Command which takes numeric argument: SENSe1:AVERage <n>
Command with literal text argument: TRIGger:SOURce <asc>
Command to set a parameter: CALCulate[1|2]:LIMit:UPPer <n>
Same command; query that parameter: CALCulate[1|2]:LIMit:UPPer?
Command with no query form: *CLS
Command with query form only: SENSe[1|2]:TEMPerature?
NOTES
A literal argument denoted by <asc> indicates a text string, which must exactly match one of the
choices for the command, while an argument denoted by <n> is a string which can be converted
to a number which is within the range of valid arguments. Numerical values can generally be in
any common form including decimal and scientific notation.
The vertical separator bar | character is used to separate a set of optional command choices. This
character is for showing syntax only, and should not be entered as part of the command.
Square brackets [ ] are used to enclose one or more optional command entries, separated by the
vertical separator bar
| character. None or one of the enclosed options may be inserted into the
command, and the brackets should not be entered as part of the command.
Curly braces { } are used to enclose two or more possible choices for a mandatory entry, separated
by the vertical separator bar
| character. One of the enclosed options MUST be inserted into the
command, and the braces should not be entered as part of the command.
4.4 BASIC MEASUREMENT OPERATION.
The easiest way to obtain a reading is by use of the MEASure command. This command initiates one complete
measurement sequence which includes a default configuration. Examples are:
MEAS1:POWER? To return the average power of channel 1, or
MEAS1:VOLTAGE? To return the average voltage of channel 1.
For finer control over the measurement, individual configuration and function commands should be used. Readings
are obtained using the
FETCh[1|2]? command for current data or the READ[1|2]? command for fresh data. These
commands may return multiple results if an array is read.
Readings are in fundamental units as set by the CALCulate[1|2]:UNITs command. Each reading is preceded by a
condition code, which has the following meaning:
-1 Measurement is STOPPED. Value returned is not updated.
0 Error return. Measurement is not valid.
1 Normal return. No error.
2 An Over-range or Under-range condition exists.
These conditions may also be retrieved from the error system by command.
With the INITiate:CONTinuous OFF condition, a single measurement cycle is started by use of the
INITiate[:IMMEDIATE] command, where bracketed commands are optional. Multiple triggered measurement cycles
are enabled by INITiate:CONTinuous ON and a TRIGger source selection. If TRIGger:SOURce IMMediate is
selected, a free running measurement process is started. Otherwise, a measurement cycle begins with each valid trigger
condition.