Table of Contents Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual
4 6482-901-01 Rev. A / August 2012
Data storage enabled ........................................................................... 9-7
Limit test enabled ................................................................................. 9-7
10 Limit Testing.......................................................................................... 10-1
Types of limits ........................................................................................... 10-2
Pass or fail information....................................................................... 10-2
Data flow ............................................................................................ 10-2
Limit test feeds ................................................................................... 10-2
Limit 1 and 2 tests (compliance)......................................................... 10-3
Limit 3 to 6 tests ................................................................................. 10-3
Limit tests ........................................................................................... 10-3
Operation overview................................................................................... 10-3
Output enable connector.................................................................... 10-5
Configuring and performing limit tests ...................................................... 10-5
Configuring limit tests ......................................................................... 10-5
Performing limit tests.......................................................................... 10-6
Remote limit testing .................................................................................. 10-7
Limit commands ................................................................................. 10-7
Limit test programming example ........................................................ 10-8
11 Output Enable and Output Configuration...................................... 11-1
Output enable ........................................................................................... 11-2
Ground ............................................................................................... 11-2
Input (SOT) line .................................................................................. 11-2
+5 V DC.............................................................................................. 11-3
Output enable (/OE) ........................................................................... 11-3
Front-panel output configuration............................................................... 11-4
Configure OUTPUT menu .................................................................. 11-4
Remote output configuration..................................................................... 11-4
Output configuration commands ........................................................ 11-4
Output configuration programming example ...................................... 11-5
12 Remote Operations ............................................................................. 12-1
Remote versus local operation ................................................................. 12-2
Local-to-remote transition................................................................... 12-2
Remote-to-local transition .................................................................. 12-2
Selecting an interface ............................................................................... 12-2
GPIB operation ......................................................................................... 12-3
GPIB standards .................................................................................. 12-3
GPIB connections............................................................................... 12-3
Primary address ................................................................................. 12-5
General bus commands............................................................................ 12-5
REN (remote enable) ......................................................................... 12-5
IFC (interface clear)............................................................................ 12-6
LLO (local lockout) ............................................................................. 12-6
GTL (go to local)................................................................................. 12-6
DCL (device clear).............................................................................. 12-6
SDC (selective device clear) .............................................................. 12-6
GET (group execute trigger)............................................................... 12-6
SPE, SPD (serial polling) ................................................................... 12-7
Front-panel GPIB operation...................................................................... 12-7
Error and status messages................................................................. 12-7
GPIB status indicators........................................................................ 12-7
LOCAL key ......................................................................................... 12-8
Programming syntax................................................................................. 12-8
Command words ................................................................................ 12-8
Query commands............................................................................. 12-10
Case sensitivity ................................................................................ 12-10
Long-form and short-form versions .................................................. 12-10
Short-form rules................................................................................ 12-11
Program messages .......................................................................... 12-11
Response messages........................................................................ 12-13
Message exchange protocol ............................................................ 12-13
RS-232 interface operation..................................................................... 12-13