The LadderDIP4 module allows you to add complete PLC (Programmable Logic Control) functionality to your own control system. Control Engineers' prefer to program their systems using Ladder Logic because it is easy to learn and you can build your own control system really quickly.
There is no need to purchase a separate Programmable Logic Controller to control your system. Now, you can incorporate PLC functionality directly into your own hardware using the LadderDIP4 module.