Edit Configuration
109
4.14.2.2 FLAGS
A flag is set when a condition within the DSE controller is met. For instance, if the module is in Auto Mode an
internal flag is set. This flag is exposed as an output source when configuring module outputs and LEDs.
In addition to internal flags, a further forty (40) custom flags are available (named PLC Flag 1-40). These can
be used to ‘memorise’ that a condition has been met, and/or used to drive module outputs and LEDs’.
For example if a timer expires, a flag can be set to make a note of the timer expiring for later use in the ladder.
4.14.2.3 TIMERS
The PLC logic section contains ten (10) user timers for use in the ladder.
A timer is configured by clicking in the menu bar. The ‘Edit time limits’ window appears.
A timer is used by adding the timer action to the ladder. When this action takes place, the timer begins.
Upon the timer reaching the configured ‘Timer limit’, a test for the timer will be successful:
Start Timer
Test Timer
Click and drag to change the time,
or press keyboard left and right
arrow keys to change by small
amounts.
To Next Page
Loading...
