5-1
Chapter 5
REMOTE OPERATION
Contents
Preparing the instrument for remote operation............................................................................ 5-3
Preparing the instrument for remote operation............................................................................ 5-3
Introduction.......................................................................................................................... 5-3
Plug and Play driver ............................................................................................................. 5-3
Local lockout........................................................................................................................ 5-3
Remote/local operation......................................................................................................... 5-3
Remote operation selection ......................................................................................................... 5-3
RS-232 operation......................................................................................................................... 5-4
RS-232 control port.............................................................................................................. 5-4
Handshaking......................................................................................................................... 5-4
Software only ................................................................................................................ 5-4
Hardware only............................................................................................................... 5-4
Hardware and software ................................................................................................. 5-4
Control characters................................................................................................................. 5-4
Setting RS-232 parameters................................................................................................... 5-5
GPIB operation............................................................................................................................ 5-6
GPIB control port................................................................................................................. 5-6
Setting GPIB address............................................................................................................5-6
GPIB functions............................................................................................................................ 5-6
Device listening elements............................................................................................................ 5-7
Device talking elements............................................................................................................... 5-7
Programming............................................................................................................................... 5-8
Program messages................................................................................................................5-8
Compound headers............................................................................................................... 5-8
Program data......................................................................................................................... 5-9
Message exchange protocol.................................................................................................. 5-9
Common commands and queries (IEEE 488.2) ................................................................... 5-9
Device-dependent commands............................................................................................. 5-10
Default settings................................................................................................................... 5-11
Carrier frequency....................................................................................................................... 5-12
RF level ..................................................................................................................................... 5-13
Output control............................................................................................................................ 5-15
Modulation mode....................................................................................................................... 5-16
Modulation control.................................................................................................................... 5-16
Frequency modulation (and FSK) ............................................................................................. 5-17
Phase modulation....................................................................................................................... 5-19
Amplitude modulation............................................................................................................... 5-21
Pulse modulation ....................................................................................................................... 5-23
Pulse generation......................................................................................................................... 5-24
LF generator .............................................................................................................................. 5-25
Memory − store ......................................................................................................................... 5-26
Memory − recall ........................................................................................................................ 5-26
Memory − erase......................................................................................................................... 5-26
Memory − sequencing ............................................................................................................... 5-27
Memory − triggering ................................................................................................................. 5-28
Memory − protection................................................................................................................. 5-28
Sweep operation ........................................................................................................................ 5-29
Sweep mode............................................................................................................................... 5-30
Sweep control............................................................................................................................ 5-31
SINAD mode............................................................................................................................. 5-32
Miscellaneous commands..........................................................................................................5-33
Status byte ................................................................................................................................. 5-37
Status data structure − register model........................................................................................ 5-38
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