User Manual
Command Syntax
Clearing the Output Queue
To clear the out
put queue and reset the oscilloscope to accept a new command or
query, send a Device Clear (DCL) from a GPIB host.
From an RS-232
host, send a break signal. The RS-232 interface responds by
returning the ASCII string "DCL."
From a USB ho
st, send an INITIATE_CLEAR followed by
a CHECK_CLEAR_STATUS. The USB interface responds to
CHECK_CLEAR_STATUS with STATUS_SUCCESS when it is finished clearing
the output queue.
Command Entry
Follow these general rules when entering commands:
Enter commands in upper or lower case.
You can precede any command with white space characters. White space
characters include any combination of the ASCII control characters 00 through
09 and 0B through 20 hexadecimal (0 through 9 and 11 through 32 decimal).
The oscilloscope ignores commands that consists of just a combination of
white space characters and line feeds.
Abbreviating Commands
You can abbreviate many oscilloscope commands. These abbreviations are s hown
in capital letters in the command listing in the Command Groups section and
Command Descriptions section. For e xample, the command ACQuire:NUMAvg
can be entered simply as ACQ:NUMA or acq:numa.
If you use the HEADer command to have command headers included as part
of query responses, you can a lso control whether the returned headers are
abbreviated o r are full-length using the VERBose command.
Co
ncatenating Commands
You can concatenate any combination of set commands and queries using a
semicolon (;). The oscilloscope executes concatenated commands in the order
received. When concatenating commands and queries you must follow these rules:
Completely different headers must beseparatedbybothasemicolonand
by the beginning colon on all commands but the first. For example, the
commands TRIGger:MODe NORMal and ACQuire:NUMAVg 16 can be
concatenated into a single command:
TRIGger:MODe NORMal;:ACQuire:NUMAVg 16
If concatenated commands have headers that differ by only the last
mnemonic, you can abbreviate the second command and eliminate the
beginning colon. For example, the commands ACQuire:MODe AVErage and
ACQuire:NUMAVg 16 could be concatenated into a single command:
2-4 TDS200, TDS1000/2000, TDS1000B/2000B, TDS2000C, TPS2000 Programmer