CSE-Semaphore TWinSoft Manual - ioSelect

When you double click the name of the Program in the list, the window for Ladder programming
appears with a new Tab for the current Program.
figure 24
Now you can create a Ladder Diagram for the Program you have defined.
Calling a POU Program in another Program
To call a POU Program, click the icon in the LD Toolbar. In the folder, 'This File' select the
POU Program you wish to insert. All POU Programs have the following parameters:
- EN:
- ENO:
Enable Input: Connection to the Ladder line. EN must be TRUE to run the
Program. If it is connected directly to the left rail, it will be executed at each
cycle of the Ladder, otherwise it can be connected to an input condition.
Enable Output: it is the image of EN. If EN is TRUE, ENO is TRUE. It is
usually connected to the right rail but can be also connected to a contact or a
relay, a Mathematical block or a Function.
Calling a POU Program is like calling a sub-routine. The program associated to it is executed at
the position where it is called.
TWinSoft: 8.32 – Getting Started 46