This thesis had as its general objective the repowering and automation of a multipurpose mixing equipment, which consisted of: 3 hoppers, 1 reservoir tank, 1 mixing and heating tank, and 6 actuators (3 solenoid valves, 1 pump, 1 agitator, and 1 heater). To achieve this objective, a PLC Zelio Logic SR2 B201 FU was implemented on the mixing equipment, on which a control circuit was programmed using Zelio Soft2 V5.4.2. The physical inputs and outputs used from the PLC were: 12 inputs and 6 physical outputs. The pump, agitator, three solenoid valves, and heater were connected to physical outputs Q1, Q2, Q3, Q4, Q5, and Q6, respectively. Data transfer between a PC and the PLC was performed using a communication interface, which has two ports: COM and USB, connected to the PLC and PC, respectively. The population consisted of all elements of the control circuit, which were: 20 contacts, 6 phys...