Keithley 6220 Reference Manual page 125

Model 6220/6221 Reference Manual
PC control system
System configuration for PC control of the Model 622x is shown in
The RS-232 interface for the Model 2182/2182A must be enabled (on) and the
selected interface for the Model 622x must be the GPIB or the Ethernet (Model
6221).
The test setup and operation is controlled by the PC using remote programming
via the IEEE-488 bus or the Ethernet (Model 6221). The RS-232 interface is used
for communications between the Model 622x and the Model 2182/2182A. The
Model 622x sends setup commands to the Model 2182/2182A, and the Model
2182/2182A sends Delta, Pulse Delta, or Differential Conductance readings to the
buffer of the Model 622x. See
Once the test is started, trigger synchronization between the two instruments is
controlled by the Trigger Link.
Serial communications
In order to perform Delta, Pulse Delta, or Differential Conductance measure-
ments, the Model 622x must communicate to the Model 2182/2182A over the
serial (RS-232) interface. With serial communications properly configured and
connected, the Model 622x will automatically send setup commands to the Model
2182/2182A when Delta, Pulse Delta, or Differential Conductance is armed. The
"Arming
Also, readings from the Model 2182/2182A are automatically sent to the Model
622x to be processed into Delta, Pulse Delta, or Differential Conductance read-
ings that are then stored in the buffer.
Figure 5-2
System configurations for Delta, Pulse Delta, and Differential Conductance
A) Stand-alone system (front panel operation)
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
"Serial
process" is explained on
Return to
Delta, Pulse Delta, and Differential Conductance
communications" for more details.
page 5-11.
B) PC control of 6220/21
Section 5 topics
5-5
Figure 5-2B.