Keithley 2651A Reference Manual page 292

Section 6: Instrument programming
Although the expanded system can control up to 32 TSP-Link enabled instruments, combining the
output of a Model 2651A to increase either voltage or current is only permitted with another Model
2651A. Combining two Model 2651A instruments to achieve greater currents in both source voltage
and source current applications requires specific precautions including configuration settings. For
further information, visit the
notes on combining two Model 2651A instruments' channels.
Master and subordinates
In a TSP-Link
the subordinate modes.
The master node can control the other nodes (subordinates) in the system. When any node
transitions from local operation to remote, it becomes the master of the system; all other nodes also
transition to remote operation, and become its subordinates. When any node transitions from remote
operation to local, all other nodes also transition to local operation, and the master/subordinate
relationship between nodes is dissolved. For more information about remote and local operations, see
Factory scripts
TSP-Link system
You can use the TSP-Link
addressable TSP-Link enabled instruments (32 instruments at a time). The expanded system can be
stand-alone or computer-based.
Stand-alone system: You can run a script from the front panel of any instrument (node) connected to
the system. When a script is run, all nodes in the system go into remote operation (REM indicators
turn on). The node running the script becomes the master and can control all of the other nodes,
which become its subordinates. When the script is finished running, all the nodes in the system return
to local operation (REM indicators turn off), and the master/subordinate relationship between nodes is
dissolved.
Computer-based system: You can use a computer and a LAN, GPIB, or RS-232 interface to any
single node in the system. This node becomes the interface to the entire system. When a command is
sent through this node, all nodes go into remote operation (REM indicators turn on). The node that
receives the command becomes the master and can control all of the other nodes, which become its
subordinates. In a computer-based system, the master/subordinate relationship between nodes can
only be dissolved by performing an abort operation.
6-48
Model 2651A High Power System SourceMeter® Instrument Reference Manual
Keithley Instruments website
®
system, one of the nodes (instruments) is the master node and the other nodes are
(on page 5-20).
®
expansion interface to expand your test system to include up to 64
(http://www.keithley.com) for application
2651A-901-01 Rev. A / March 2011