Diseño e implementación de un sistema para el monitoreo, información de fallas y control de una máquina elaboradora de tabacos controlada por dos PLC’s, a través de un panel táctil

Abstract

In the tobacco company “TANASA S.A.”, in the tobacco processing machine identified as "M5", a problem was detected by having a touch panel for monitoring the system that did not have an efficient connection to the two PLC's that control the machine. As these are different brands of equipment that handle different communication protocols, the HMI could only communicate with one of them, while the other did not have a direct connection to the HMI. In addition, the editable HMI program was not available, so it was impossible to add new information messages on the screen or modify the existing ones. To solve the communication problem in the machine, a new touch panel that implements the Ethernet / IP communication protocol was installed, so a new network is added to the system making possible that both PLC's are directly connected to the touch panel, the one through MPI and the other via Ethernet / IP. In addition, the names of the sensors were revised to match both the electrical planes of the machine and the programs of the PLC's and the HMI.