PLC Hacking (Pt. 2)

Welcome to Part 2 of our “PLC Hacking series”. In our previous blog, we covered setting up our Koyo CLICK PLC and writing our first ladder logic program into the PLC. Here, we are going to learn about overriding PLC data from remote sources and discuss how different industrial communication protocols like Modbus TCP and...

PLC Hacking (Pt. 1)

Programmable Logic Controllers (PLCs) are industrial computers used to control different electro-mechanical processes for use in manufacturing, plants, or other automation environments. PLCs can range from small modular devices with tens of inputs and outputs (I/O) in a housing integral with the processor, to large rack-mounted modular devices with a count of thousands of I/O,...