Remote Control
Remote Control Commands
6
6-21
Save and Recall Instrument Settings
*SAV Save Command
This command, followed by a decimal value from 1 to 99, stores the current instrument
setting into the corresponding internal memory register. The command is executed after
all other commands in a common string are completed. The instrument cannot handle
more than 25 *SAV commands in one message. The contents of the memory are not
affected by the command *RST or when the instrument is turned off.
*RCL Recall Command
This command, followed by a decimal value from 1 to 99 for the memory place, calls up
and executes the instrument setting stored in that memory register.
Device Specific Messages
This section contains the remote programming commands necessary to select operation
modes, parameters, and settings.
"
" Separates expressions which can be used by choice.
"[ ]" Means that this expression or unit need not necessarily be input. If the unit is
missing the instrument automatically sets Hz for frequencies, V for amplitudes,
dBc for levels, and s for time.
"NRf" Flexible numeric representation. Under the IEEE-488.2 standard, numeric values
can be given to the instrument in integer <NR1 >, real <NR2>, or exponential
<NR3> forms. The number of digits is limited to 100 for mantissa and 2 for the
exponent. The instrument rounds automatically to the next possible value for the
selected parameter.
You can set, for example, the carrier frequency to 203.25 MHz with following
inputs for <NRf>:
FREQUENCY 203.25E6
FREQUENCY 203250000
FREQUENCY 203250000.0
FREQUENCY 203250E3
FREQUENCY 203300000
Instrument rounds to its nearest allowed
frequency, which is 203.25 MHz.
" , " Serves as a separator between several data elements in the program data. The
length of a complete program message is limited to 2000 characters. The length
of a string is limited to 1000 characters.
Example:
SC1LEVEL -10 DBC
Unit dBc Suffix Program
Carrier level Data Element Data Command
Sound carrier Program Program Message
Amplitude Header