Logic modules are programmable controllers which allow machines to perform processes without human intervention. Therefore, logic modules can be considered as intelligent controllers. Logic modules to perform processes without human intervention.Logic modules are mainly used in the industry where complex and great installations operate with many different automated processes. However, thanks to modern and affordable logic modules, nowadays it is possible to used them for less important processes and even for private use. These reduced logic modules are able to automate for example, controllers for windows, awnings or small installations in the continuous transport. Some applications, which previously required diverse activators and timers as well as important connection works, can be now performed with logic modules. Logic modules available at PCE Instruments have 8 input channels (six of them can be used as analog inputs) 4 outputs (transistor) as well as a real time clock. Logic modules can be additionally connected to a LCD display and/or other logic modules.