Omron CX-PROGRAMMER V9 Operation Manual page 184

OMRON
This function improves debugging efficiency when using multiple tasks.
The background color of the Ladder Section Window for the task being executed can be specified by
the user.
Pause Monitoring
Pause Monitoring is an online function that allows the normal monitoring display to be frozen at a point in time,
so that the logic of a program can be examined. The pause can be triggered either manually or by a trigger
condition.
Note:
Use the following procedure to Pause monitor a program.
1, 2, 3...
If a condition is being used for pausing, the monitoring display will continue until the condition has been met, at
which point the 'Pause' button will be shown as down and monitoring freezes. To resume monitoring, and wait
for another instance of the condition, press 'Pause' again. Note that it is possible to manually pause the
monitoring by pressing 'Pause' even when using the 'Triggered' type of condition. To resume full monitoring,
press the 'Pause Upon Trigger' button again, so that it is shown as out.
Stopping Pause Monitoring
Pause monitoring may be stopped either by taking the PLC off-line, taking the PLC out of monitor or run mode,
or by selecting pause monitoring again – This is effectively a toggle button.
On stopping pause monitoring, the hatched areas are removed and the PLC is either taken off-line, returned to a
normal on-line state or returned to normal monitoring or run mode.
The trigger condition that has been set is remembered should it be required to restart pause monitoring again in
the same session.
PLC Cycle Time
The PLC Cycle Time dialog allows the PLC's cycle times to be measured. The PLC Cycle Time is always
displayed in the status bar.
Due to the speed at which a PLC operates and the slow speed of some network
communications, a trigger condition on a PLC may not always be found, especially if the
trigger condition is a transient and only occurs for brief moment in time.
1. To enable pause monitoring, first select 'PLC Monitoring', so that monitoring is working
normally.
2. Select a range of rungs that are of interest to monitor. This is necessary to allow the
monitoring to be as fast as possible (the less values to monitor, the faster the data can be
obtained through communication with the PLC).
3. Select the 'Pause Upon Trigger' command. This will present a dialog allowing the choice
of trigger. Select either Manually or Triggered.
Triggered: When the pause is triggered, a trigger condition is necessary. A trigger
condition happens when the contents of an address reaches a certain value or makes a
transition.
It is possible to enter an address or a symbol name into the dialog, or browse for a symbol.
Select the type of condition, supplying the value or transition type.
When the pause monitoring function is operating, the display outside the selected region is
dimmed, and monitoring only occurs within the selected region.
Manually: This option means that monitoring will only be paused when told to do so.
Select 'Manually' in the dialog and press 'OK'. Monitoring then begins. To operate the
pause, wait until the monitoring screen is interesting, then select 'Pause' from the toolbar
or from the PLC/Monitor menu. The monitoring function is paused (the 'Pause' button on
the toolbar is shown as down). To resume monitoring, press the 'Pause' button again, and
monitoring will resume, waiting for another trigger.
PART 1: CX-Programmer
CHAPTER 4 – Reference
CX-Programmer _Page 101