Understanding PLCs: The Brain and Its Peripheral Devices

Understanding PLCs: The Brain and Its Peripheral Devices

Learning about PLCs is not enough if you only understand the PLC itself. The PLC is the “brain,” while the peripheral devices are its “eyes, ears, hands, and feet.” A qualified automation engineer must be proficient in how these peripheral devices work in conjunction with the PLC. Below are the core peripheral devices that one … Read more

Understanding PLC Connections with 7 Types of Devices

Understanding PLC Connections with 7 Types of Devices

Common input devices for PLCs include buttons, limit switches, proximity switches, toggle switches, dip switches, and various sensors, while output devices consist of relays, contactors, solenoid valves, etc. Correctly connecting the input and output circuits is essential for the safe and reliable operation of PLCs. 1. Connection between PLC and Main Control Devices Figure 1 … Read more