Chapter 5 POU and Task Choose Cyclic from the Type drop-down list and setup the Time Interval ; The cyclic task is operated according to the time interval setting from Task Manager. (3) Triggered by Event Choose Triggered by Event from the Type drop-down list and select from Mode of Triggering drop-down list. The mode of triggering contains the following events: - Motion event (Motion control task) - Rising edge or falling edge of local input points (I0~I7 and I10~I17) - CANopen SYNC signal - Z pulse rising edge of incremental encoder 1 or encoder 2 An event task is only executed once to the assigned event.
The executing time for event task is determined by the time of event and event task according to priority. Watchdog The Watchdog is used to monitor every task. When the task execution time exceeds the set watchdog time, the controller will enter Error state and the user program execution will stop. Every task can set its exceeding time and click the Watchdog function if needed. 5-35