PLC Programming

6 - The Resources
task times. The libraries will be included automatically as soon as a target is set which supports the
task monitoring.
Display of task status in the configuration tree:
In online mode the current status of a task will be displayed in brackets at the end of the task entry
line in the configuration tree, also the number of already passed through process cycles. This update
interval is the same as usual for the monitoring of PLC values. The possible stati:
Idle
Running
Stop
Stop on BP
Stop on Error
Stop Watchdog
has not been started since last update; especially used for event
tasks
has been started at least once since last update
stopped
stopped, because breakpoint in task is reached
Error, e.g. division by zero, page fault etc.
cycle time has been exceeded
The task entry will be displayed red coloured in case of status 'Stop on Error' or 'Stop Watchdog' .
Display of the time flow of the tasks
If the entry 'Taskconfiguration' is selected in the configuration tree, the utilization of the tasks will be
displayed in bar charts in the right part of the window:
Display of the Task Execution in Online Mode
For each task a bar chart is displayed. The length of the bar represents the length of a cycle period.
Below the bar as well as by appropriate marks on the bar the following measurement values are
illustrated:
Min: minimum measured runtime in µs
Akt: last measured runtime in µs
Max: maximum measured runtime in µs
Cycle: total length of a cycle in µs
Jitter: maximum measured jitter in µs
The button Reset can be used to set back the values of Min., Max. and Jitter to 0.
CoDeSys V2.3 6-39