Omron TJ1-MC04 - PROGRAMMING 1 Programming Manual page 214

Trajexia Tools interface
Data Upload from the controller to the oscilloscope
If the overall time base is greater than a pre-defined
value, then the data is retrieved from the controller in
blocks, hence the display can be seen to be updated in
sections. The last point plotted in the current section is
seen as a white spot.
If the oscilloscope is configured to record both motion
parameters, and also to plot table data, then the table
data is read back in one complete block, and then the
motion parameters are read either continuously or in
blocks (depending upon the time base).
Even if the oscilloscope is in continuous mode, the table
data is not re-read, only the motion parameters are con-
tinuously read back from the controller.
Enabling/Disabling of oscilloscope controls
Whilst the oscilloscope is running all the oscilloscope con-
trols except the trigger button are disabled. Hence, if it is
necessary to change the time base or vertical scale, the
oscilloscope must be halted and re-started.
Display accuracy
The controller records the parameter values at the
required sample rate in the table, and then passes the
information to the oscilloscope. Hence the trace displayed
is accurate with respect to the selected time base. How-
ever, there is a delay between when the data is recorded
by the controller and when it is displayed on the oscillo-
scope due to the time taken to upload the data via the
communication link.
PROGRAMMING MANUAL 214