Keithley DMM7510 - Page 9

Table of Contents
Model DMM7510 7½ Digit Graphical Sampling Multimeter
Reference Manual
Digital I/O bit weighting ........................................................................................................... 3-57
Digital I/O programming examples .......................................................................................... 3-57
External I/O ........................................................................................................................ 3-59
Setting up the external I/O....................................................................................................... 3-59
External trigger I/O pinouts...................................................................................................... 3-60
Remote external I/O commands .............................................................................................. 3-61
Measurement methods ...................................................................................................... 3-62
Continuous measurement triggering ....................................................................................... 3-62
Trigger key triggering .............................................................................................................. 3-62
Trigger model triggering .......................................................................................................... 3-62
Switching between measurement methods ............................................................................. 3-63
Triggering ........................................................................................................................... 3-63
Command interface triggering ................................................................................................. 3-63
Triggering using hardware lines .............................................................................................. 3-64
Analog triggering overview ...................................................................................................... 3-64
LAN triggering overview .......................................................................................................... 3-69
Trigger timers .......................................................................................................................... 3-70
Event blenders ........................................................................................................................ 3-73
Interactive triggering ................................................................................................................ 3-74
Trigger model ..................................................................................................................... 3-76
Trigger model blocks ............................................................................................................... 3-76
Predefined trigger models ....................................................................................................... 3-93
Assembling trigger model blocks ............................................................................................. 3-95
Running the trigger model ....................................................................................................... 3-97
Using trigger events to start actions in the trigger model ........................................................ 3-99
Limit testing and binning .................................................................................................. 3-102
Limit testing using the front-panel interface ........................................................................... 3-102
TSP-Link System Expansion Interface ............................................................................ 3-104
TSP-Link connections ........................................................................................................... 3-105
TSP-Link nodes ..................................................................................................................... 3-106
Master and subordinates ....................................................................................................... 3-107
Initializing the TSP-Link system ............................................................................................ 3-108
Sending commands to TSP-Link nodes ................................................................................ 3-108
Using the reset() command ................................................................................................... 3-109
Terminating scripts on the TSP-Link system ......................................................................... 3-109
Triggering using TSP-Link synchronization lines................................................................... 3-109
Running simultaneous test scripts ......................................................................................... 3-110
Using Model DMM7510 TSP-Link commands with other TSP-Link products ........................ 3-115
TSP-Net ........................................................................................................................... 3-116
Using TSP-Net with any ethernet-enabled instrument .......................................................... 3-117
Remote instrument events .................................................................................................... 3-118
TSP-Net instrument commands: General device control ...................................................... 3-118
TSP-Net instrument commands: TSP-enabled device control .............................................. 3-118
Example: Using tspnet commands ........................................................................................ 3-119
Measure considerations ........................................................................................... 4-1
Line cycle synchronization ................................................................................................... 4-1
Using aperture or NPLCs to adjust speed and accuracy ..................................................... 4-1
DMM resistance measurement methods ............................................................................. 4-3
Constant-current source method ............................................................................................... 4-4
Ratiometric method ................................................................................................................... 4-5
Low-level voltage measurement considerations .................................................................. 4-7
Thermoelectric potentials .......................................................................................................... 4-7