In this video, we will complete the course on Interrupt OBs by identifying some of the more advanced features of Interrupt OBs and show how to provide a reliable, trouble-free use of Interrupt OBs in the Siemens S7-series PLC programs.
The newer S7 PLC CPU models can support configuration of many Interrupt OBs of each kind. If these interrupt OBs are not managed correctly, a CPU fault could occur.
There are some simple precautions that can be taken to help avoid this issue. We will use TIA Portal for this lesson, but these tips and tricks are valid for STEP7 version 5 programs as well.