Keithley 6485 Instruction Manual page 11

9 Remote Operation
Selecting and configuring an interface ....................................... 9-2
Interfaces ............................................................................. 9-2
Languages ........................................................................... 9-2
Interface selection and configuration procedures ............... 9-3
Configuring the GPIB interface ................................... 9-3
RS-232 interface .......................................................... 9-3
GPIB operation and reference .................................................... 9-4
GPIB bus standards ............................................................. 9-4
GPIB bus connections ......................................................... 9-4
Primary address ................................................................... 9-7
General IEEE-488 bus commands ...................................... 9-7
Commands and associated statements ......................... 9-7
REN (remote enable) ................................................... 9-7
IFC (interface clear) ..................................................... 9-8
LLO (local lockout) ..................................................... 9-8
GTL (go to local) ......................................................... 9-8
DCL (device clear) ....................................................... 9-8
SDC (selective device clear) ........................................ 9-8
GET (group execute trigger) ........................................ 9-9
SPE, SPD (serial polling) ............................................ 9-9
Front panel GPIB operation ................................................ 9-9
Error and status messages ............................................ 9-9
GPIB status indicators ................................................. 9-9
LOCAL key ............................................................... 9-10
Programming syntax ......................................................... 9-10
Command words ........................................................ 9-10
Query commands ....................................................... 9-12
Case sensitivity .......................................................... 9-12
Long-form and short-form versions ........................... 9-12
Short-form rules ......................................................... 9-12
Program messages ..................................................... 9-13
Single command messages ........................................ 9-13
Multiple command messages ..................................... 9-14
Command path rules .................................................. 9-14
Using common commands and SCPI
commands in the same message ................................ 9-14
Program Message Terminator (PMT) ........................ 9-15
Command execution rules ......................................... 9-15
Response messages .................................................... 9-15
Sending a response message ...................................... 9-15
Multiple response messages ...................................... 9-15
Response Message Terminator (RMT) ...................... 9-16
Message exchange protocol ....................................... 9-16