14 Remote Operations
Differences: remote vs. local operation .................................... 14-2
Operation enhancements (remote operation) .................... 14-2
Math expressions ........................................................ 14-2
Concurrent measurements .......................................... 14-2
Local-to-remote transition ................................................. 14-2
Remote-to-local transition ................................................. 14-3
Selecting an interface ............................................................... 14-3
GPIB operation ......................................................................... 14-4
GPIB standards .................................................................. 14-4
GPIB connections .............................................................. 14-4
Primary address ................................................................. 14-6
General bus commands ............................................................. 14-7
REN (remote enable) ......................................................... 14-7
IFC (interface clear) .......................................................... 14-7
LLO (local lockout) ........................................................... 14-8
GTL (go to local) ............................................................... 14-8
DCL (device clear) ............................................................ 14-8
SDC (selective device clear) .............................................. 14-8
GET (group execute trigger) ............................................. 14-8
SPE, SPD (serial polling) .................................................. 14-9
Front panel GPIB operation ...................................................... 14-9
Error and status messages ................................................. 14-9
GPIB status indicators ....................................................... 14-9
REM ........................................................................... 14-9
TALK ....................................................................... 14-10
LSTN ........................................................................ 14-10
SRQ .......................................................................... 14-10
LOCAL key ..................................................................... 14-10
Programming syntax ............................................................... 14-11
Command words ............................................................. 14-11
Commands and command parameters ..................... 14-11
Query commands ............................................................. 14-13
Case sensitivity ................................................................ 14-13
Long-form and short-form versions ................................ 14-14
Short-form rules .............................................................. 14-14
Program messages ........................................................... 14-15
Single command messages ....................................... 14-15
Multiple command messages ................................... 14-15
Command path rules ................................................ 14-16
Using common and SCPI commands in the
same message ....................................................... 14-16
Program message terminator (PMT) ........................ 14-16
Command execution rules ........................................ 14-16
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