Internal Stepping - Keithley 2182 User Manual

Operation:

Internal stepping

Settings:
Overview:
Operation:
When the SCAN key is pressed, operation proceeds to Device Action
where a measurement on Channel 2 is performed. The sample counter
is decremented to 4 causing operation to loop back to Device Action for
a measurement on Channel 1. Operation loops back to Device Action
three more times to complete the scan cycle.
After the scan cycle, the trigger counter is decremented to 1 and an
output trigger is sent. Operation loops back to the control source, where
it immediately falls through and repeats the five measurement scan. An
output trigger is again sent, and the instrument then goes into the idle
state.
Control Source = Immediate (timer off)
Delay = Auto
Channel 1 Count = 4
Reading Count = 10
A Reading Count of ten sets the Trigger Counter in
total of ten measurements will be performed and stored in the buffer.
The 1st and 6th measurements will be performed on Channel 2, and the
rest will be performed on Channel 1.
When the STEP key is pressed, operation proceeds to Device Action
where a measurement on Channel 2 is performed. An output trigger is
sent and the Trigger Counter is decremented to 9. Operation then loops
back to Device Action four more times to perform four measurements
on Channel 1. Note that an output trigger is sent after every
measurement.
At this point, the Trigger Counter is set to 5. Operation continues to loop
until Channel 2 is again measured one time, and Channel 1 is again
measured four times. After the last measurement is performed, the
instrument goes into idle.
Stepping and Scanning
Figure 9-2
9-9
to 10. A