
Define operational technology and contrast it with information technology, and explain how ot devices like vfds, plcs, and hmis require data networking.
Select OT lab gear by budget and goals, avoiding expensive PLCs and industrial equipment for practice, and use legacy hardware, USB to Ethernet dongles, cables, switches, and tools to learn.
Explore home and small office networks to differentiate OT from traditional environments. Connect a laptop to a field device, configure drivers, and use data sheets to set IPs and ping.
Explore networks 101 fundamentals, including how a modem-router combo connects devices via ISP, RJ45 and wireless, assigns IP addresses, and supports LAN and WAN for OT environments.
Explore how a modem, router, switch, and access points create modular home networks, manage traffic among devices, and assign IP addresses for seamless connectivity.
Explore the distinct plant networks that power manufacturing, from Modbus, DeviceNet, and ControlNet to Ethernet IP and Profinet, and learn how IT-OT integration shapes engineering and deployment.
Explore the OSI model in an OT context, from physical cables and Mac addresses to layer three IP addressing and routing, highlighting the top four layers relevant to industrial networks.
Understand why plant networks migrate from legacy protocols to ethernet-based systems. See how OT networking enables data flow between PLCs, HMIs, and drives, and why topology and switches matter.
Connect your laptop to a powerflex 525 IP-based drive using a USB ethernet dongle, configure the IP addresses, and ping to verify communication.
Learn how MAC addresses act as unique identifiers in industrial networks, distinguish them from IP addresses, locate MAC labels on devices during commissioning, and verify devices by matching MAC addresses.
Explore how IP addresses enable machine-to-machine communication in OT networks, including private 192.168.1.x schemes, subnet masking, and device address planning.
Compare unmanaged with managed switches for OT networks on the plant floor, highlighting rugged industrial switches, cost differences, and how traffic and port scenarios influence scalability and security.
Configure IP addresses and subnet masks on laptops and OT devices, then verify connectivity with ipconfig and ping using unmanaged switches to expand and test the network.
Explore the differences between static and DHCP addressing in industrial systems, highlighting why OT often uses fixed IPs for PLCs and HMIs instead of dynamic pools.
Gain hands-on experience, discuss IP and MAC addresses, and outline PLC, HMI, and VFD networks, then prepare for an advanced course on VLANs, Nats, managed switching, and segmentation.
Understanding how industrial networks work is one of the most valuable skills for engineers and technicians in today’s manufacturing environment. This course introduces you to the foundations of Operational Technology (OT) networking and gives you the practical knowledge to build, connect, and troubleshoot real systems on the plant floor.
You will start from the very beginning, learning what makes a network function, how industrial devices exchange information, and how plant-floor systems differ from traditional IT networks. Each lesson builds on the last, combining clear explanations, whiteboard visuals, and guided hands-on labs that bring every concept to life.
By the end of this course, you will understand how to connect your laptop to an industrial device, interpret IP and MAC addresses, and diagnose the most common communication problems found in OT environments.
What You Will Learn
The fundamentals of how routers, switches, and devices communicate in a network
The key differences between IT and OT networking in manufacturing systems
The structure and purpose of the OSI model with a focus on Layers 1 to 3
How to identify devices using MAC addresses and configure IP addresses for industrial equipment
The importance of network reliability, data flow, and safety signals in control systems
How to connect to PLCs, HMIs, and other OT devices using your laptop
Practical troubleshooting methods for resolving basic network and communication issues
Why This Course Matters
Learn from real industrial experience, not theory
Follow along with labs and demonstrations that mirror real factory systems
Build confidence to design and maintain small OT networks
Prepare yourself for more advanced topics such as VLANs, NAT, and managed switch configuration
This course is perfect for technicians, engineers, and students who want to understand the communication backbone of modern industrial automation. No previous networking experience is required — only curiosity and a desire to learn how real plants connect and operate.