Actuadores inteligentes con protocolo de comunicación I2C y medio físico RS-485
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This article shows the development of a Master / Slave system using I2C communication protocol for RS-485 physical means to control actuators working in the APP (Analog Process Plant) in order to replace certain functions of the PLC (programmable Logic Controller) with which currently has the plant. This system is implemented using PSoC 4200 Prototyping Kit, the system is smart to have the features to keep track of the use of the actuator, the condition (On / Off) and report in case of disconnection by external factors (wear or damage in the communication lines and / or hardware) or internal (failed communication), besides preserving the state account and for loss in power from the device. Python use of free software is made to design the GUI in which the user has the ability to view the status of the actuators, as well as proper operation and interact with those for the corresponding opening and closing.