IMPLEMENTATION OF PROGRAMMABLE LOGIC CONTROLLER IN AN AUTOMATIC MANDAC CRAB SORTING SYSTEM BY WEIGHT IMPLEMENTASI PROGRAMMABLE LOGIC CONTROLLER PADA SISTEM SORTIR KEPITING BAKAU OTOMATIS BERDASARKAN BERAT Section Articles

Abstract

In the early 1980s, one of the fishery commodities, namely mud crabs, became an important  commodity in Indonesia. The majority of the economic potential came from the wealth of the sea,  specifically the increased production of mud crabs, especially in Ujungpangkah Village, Gresik  Regency. This increase was influenced by the high demand for various types of mud crabs every  day. The fundamental problem in the harvesting process of mud crabs still relied on conventional  methods, which involved weighing and sorting each crab based on its weight. This method required a significant amount of manpower and time to complete the process, resulting in delays in  distribution and marketing, which significantly affected the harvest yield and customer trust.This  research aims to design an automation system that suits the field conditions, specifically an  automatic sorting system for mud crabs controlled by a Programmable Logic Controller (PLC)  Omron CP1E-N30DT-A and Arduino NANO, which communicate with each other to provide logical  instructions. The system also employs a PID (Proportional Integral Derivative) controller to control  the DC (Direct Current) motor of the conveyor. The sorting device created is a conveyor that  transports the crabs to an automatic load cell sensor for weight reading.