Omron TJ1-MC04 - PROGRAMMING 1 Programming Manual page 270

Examples and tips
change in parameter values is graphically represented as soon as
the change happens. The limitation of manual triggering is that it
requires user interaction, which means that the start of tracing is
not synchronized with the movement that is analyzed. Also, with
manual triggering the tracing range is limited to 200 samples per
channel.
Using the oscilloscope
The alternative, triggering by a program, does not have the
limitations of manual triggering of the tracing. Triggering by a
program stores the axis and system parameters in the memory of
the TJ1-MC__. Later, the parameters are given to the oscilloscope
for graphical representation. The axis and system parameters are
stored in the Table memory. The memory range used is defined by
the parameters of the SCOPE command. When the parameters are
in the Table memory, the oscilloscope can be configured to show a
range of Table memory locations instead of axis and system
parameters. The exact moment when the tracing is started can be
exactly determined because it is controlled by the TRIGGER
command. This means the start of tracing is synchronized with the
movement.There is no limitation of 200 samples per channel, the
oscilloscope shows as many samples (Table entries) as configured
in the Oscilloscope Configuration window.
Example
This section gives you a practical example on the use of the
SCOPE and TRIGGER commands, and how to use them in
combination with the oscilloscope to monitor axis parameters and
troubleshoot the system. For more information on the SCOPE and
TRIGGER commands, refer to sections 3.2.237 and 3.2.265.
PROGRAMMING MANUAL 270