Teledyne LeCroy PXA125 - Manual (Page 176)

User Manual PXA125
Programming Reference 4-58
Parameter range
0 to “n” in units of waveform points, where “n” is the size of the active segment. The sync
position can be programmed in increments of 4 points minimum.
OUTPut:SYNC:POSition?
Response and default
The PXA125 will return the present duty cycle value. Default value is 50.
Response to query version
The PXA125 will return the present SYNC position value. Default value is 0.
OUTPut:SYNC:WIDTh
Purpose
This command will program the width of the SYNC pulse. The sync width can be varied through a limited
range to allow widening of the sync pulse.
•
will set the SYNC width
Parameter type
Numeric (integer only)
Parameter range
4 to 100000 in units of waveform points.
OUTPut:SYNC:WIDTh?
Response and default
The PXA125 will return the present SYNC width value. Default value is 4.
OUTPut:TTLTrig{OFF|ON|0|1}
Purpose
The backplane on the PXI chassis has some signals on the P2 connector that allow inter-instrument
communication and synchronization. Among these lines, there are some trigger lines, STAR trigger, and local
bus lines. There are 8 trigger lines that can serve as source or target. Normally, these lines are designated as
tri-state lines. The OUTP:TTLT command connects a trigger pulse to one or more of the backplane
trigger lines. can range from 0 through 7. The trigger pulse is an exact duplication of the SYNC output
pulse. Therefore, programming the width and location of the SYNC output, has the same affect on the
TTLTrig lines. The outp:ttlt command can be applied to 1 or more lines.
•
can be selected from 0 through 7
•
ON or 1 will convert the designated TTLT line to an output and will place a SYNC pulse on this line
•
OFF or 0 will set the designated TTLT line output off, the Sync pulse removed and line converted to high-
impedance, tri-state.
Parameter type
Discrete
OUTPut:TTLTrig?
Response and default