Automated and Monitored Liquid Filling System using PLC Technology

In many industries (such as pharmaceuticals, beverage industries, etc.), bottles are required to be filled up with a pre-determined amount of liquid. Implementing systems using relay logic control can cause them to be inflexible. Programmable Logic Controllers - PLCs - are more flexible in automating various processes, since the behavior of the system can be changed without changing the electrical connections, as well as being able to monitor the system undergoing its operation. In this paper, an overflow filler model - filling to certain height - has been controlled using the SIMATIC-Siemens PLC trademark S7-1200 PLC. It has been monitored through a wireless network to a computer runtime in the Totally Integrated Automation (TIA) portal software, as well as a user webpage in smart devices.