5500A
Operator Manual
6-14
DUTY
Overlapped CoupledIEEE-488 RS-232 Sequential
xx xxx
(Duty Cycle command) Set the duty cycle of the squarewave output. The duty cycle is
the percentage of time the waveform is in the positive part of its cycle (1.00 to 99.00
percent). Duty cycle applies only to single-output squarewaves.
Parameter: <value> of duty cycle with optional PCT (percent) unit
Example: DUTY 12.34 PCT
Set the squarewave duty cycle to 12.34%.
DUTY?
Overlapped CoupledIEEE-488 RS-232 Sequential
xx xx x
(Duty Cycle query) Return the value of the squarewave output duty cycle (1.00 to
99.00).
Response: <value> of duty cycle in percent
Example: DUTY? returns 1.234E+01
Return 12.34% for the value of the squarewave duty cycle.
EARTH
Overlapped CoupledIEEE-488 RS-232 Sequential
xx xxx
(Earth Ground command) Select whether or not the 5500A Calibrator front panel
NORMAL LO terminal is tied to chassis (earth) ground. Once set, the 5500A Calibrator
retains the earth setting until power off or reset.
Parameters: OPEN (disconnect front panel LO terminal from chassis ground)
TIED (connect front panel LO terminal to chassis ground)
Example: EARTH TIED
Load TIED to tie the 5500A Calibrator front panel NORMAL LO terminal to earth (the
front panel Z key annunciator is on).
EARTH?
Overlapped CoupledIEEE-488 RS-232 Sequential
xx xx x
(Earth Ground query) Return whether or not the 5500A Calibrator front panel
NORMAL LO terminal is tied to chassis (earth) ground.
Responses: OPEN (front panel LO terminal disconnected from chassis ground)
TIED (front panel LO terminal connected to chassis ground)
Example: EARTH? returns OPEN
Return OPEN when EARTH is not tied to the NORMAL LO terminal (the front panel
Z key annunciator is off).
To Next Page
Loading...
