Omega Engineering OMB-CHARTSCAN 1400 User Manual page 201

Configuration Aspects for Programmers
To enable this functionality you must perform the following steps:
1. Set the first parameter of the Counts (Y) command to -1. If more than one transition cycle is
desired, enable the Auto-Rearm flag of the Trigger Configuration command. If this is done, each
transition cycle will be stored in its own Trigger Block within the buffer.
2. Set the timebase intervals for each event using the Timebase Interval (I) command.
3. Specify the two trigger events via the Trigger Configuration (T) command.
The following graph shows how the above application would be organized within the buffer. Using this method,
continuous data may be collected as long as the application program can read data out of the buffer before the
buffer overruns. If the buffer overruns, the data read may not be continuous.
B-12
Appendix B
ChartScan User's Manual