Goals of this lesson
As in the Message Events in Model 4c all linked Signal Events have to use the same name to identify them as linked. In contrast to messages, signals can be sent to multiple receivers.
Figure 1: Model 5 - Sending Signals to Multiple Process Instances / IYOPRO-Link
This means, that always 4 instances of the lower process wait for a signal from the upper process, and the incoming signal always re-activates these four process instances of the lower processing pool.