Timers

Warning :

Before programming a timer, it is necessary to place it from the toolbox on the work area.

Access :

From the menu "Programming - timers..."

Toolbar

In LADDER logic programming or LOGIC BLOCK programming, the characteristics of a timer are identical.  

The programming is the same, but their representations and the manner in which they are assigned are different.

  The « timer » tool is a chronometer which starts at the rising side

  of the logical result of the equation corresponding to the start order

  The current value of the timer is incremented by 1 at every tenth of a second.

  To use this type of tool, one makes comparisons on the contents of the timer.

  This method is very elegant because the complete management, of traffic

  lights for instance, can be easily resolved using only one timer.

  Moreover, it is a good approach for programming an electronic cam.

  The button Validate concerns the assignment in progress.

  The button OK confirms the whole of the introductions.

Note :

During the elaboration of the conditions, time is calculated on one tenth of a second basis.

Example : T1>50 corresponds to T1 larger than 5 seconds.