The paper aims to present the automation of industrial processes through Industry 4.0, to establish hierarchical levels of automation from the automation pyramid. For this, a theory about Industry 4.0 was structured in relation to the automation pyramid. Subsequently, the automation of industrial processes about beverage packaging, flow measurement, wireless network technology, total integration of levels and oil refining is presented, in each one its automation architecture is shown to perform the evaluation of its reference levels to the automation pyramid concept. In the evaluation, the field instruments, control and SCADA system were described, in relation to the automation pyramid. Subsequently, the automation of industrial processes of beverage packaging, flow measurement, wireless network technology, total integration of levels and oil refining is presented, in each one its automation architecture is shown to carry out the evaluation of its levels in reference to the concept of the automation pyramid. In the evaluation, the field instruments, control and SCADA system were described in relation to the automation pyramid. Concluding that the Industrial Ethernet communication network, due to its high capacity to transmit data between company levels, long cabling, ease of communication between controllers and ideal for local area networks (LAN), is used at Level 2, Level 3 and Level 4, while PROFIBUS, PROFINET, HART, IO-Link and AS-Interface communication networks, for their real-time data transfer between field instruments and controllers, work in explosive environments, data traffic handling , data recovery on the network, etc., is used in Level 0 and Level 1 in the automation of industrial processes.