3152A User Manual
Using The Instrument 3-44
Racal Instruments
©
2001
A simple example using the sequence command is to generate
a 1 step sequence with segment 1 repeated 74565 times:
SEQ:DATA#15<0000234501h>
where the 15 means:
1 specifies that one more byte will follow
5 specifies that 5 binary bytes will follow
and the <0000230145h>:
74565 is 00012345h rearranged to be 234501
Four zeros (0000) for segment 1 (segment 0)
Putting these together gives 0000234501
Triggered
Sequence Advance
Triggered Sequence Advance is a special case sequenced
mode. In Triggered Sequence Advance mode, the Model
3152A idles between steps until a valid trigger signal is
sensed. The trigger source can be selected from a number of
options:
•
An external trigger signal applied to the front panel
TRIG IN connector
•
An internal trigger generator whose period is
programmable
•
VXIbus TTLTRG<n> triggers
•
soft
triggers.
A sequence operating in Continuous mode was seen in
Figure
3-8. Figure 3-10
shows an example of the same sequence in
Triggered Sequence Advance mode.