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...
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,...
What is OT Security? Operational technology (OT) is hardware and software that detects or causes a change, through the direct monitoring and/or control of industrial equipment, assets, processes and events. Industrial control systems (ICS) are a main component of operational technology. Operational technology is in charge of procedures that, if compromised, might result in critical...
Introduction to VLAN Virtual LAN is a logical method of grouping Layer-2 switchports on a local switch into different broadcast domains. VLANs can help to segment a physical network switch to multiple virtual networks. VLANs can be set up by configuring network switches with a specific VLAN name and number. Valid VLAN numbers can range...
