PLC Learning Series – HMI – Interfacing

PLC Learning Series – HMI

A human-machine interface (HMI) is present in some form for every PLC. The HMI connects a user to a machine system to exchange information or control data. This interaction with the system can be through hardware or software. HMIs offer different people information and control in many ways for the automated system. Operators, supervisors, mechanics, … Read more

PLC Learning Series – Programming Steps

PLC Learning Series – Programming Steps

Developing a programmable logic controller (PLC) program can be broken down into five steps. These programming steps are as follows: Five Steps to PLC Program Development Step 1 – Define the task Step 2 – Define the Inputs and Outputs Step 3 – Develop a logical sequence of operation Step 4 – Develop the PLC … Read more

PLC Learning Series – Program Cyclic Scan

PLC Learning Series - Program Cyclic Scan

Programmable logic controllers (PLC) use a cyclic scan. The time that it takes to complete one scan is called Scan Time. Typical scan times range from 10 milliseconds to 10 microseconds. This translates from 0.01 to 0.0001 seconds per PLC scan. Understanding how the program scan will help us in programming and troubleshooting the PLC. … Read more

PLC Learning Series – Understanding Numbers

PLC Learning Series - Understanding Number Values

All programmable logic controllers (PLC) have the same numbering system at their core. This is the same with all computers as well. The status of any memory location can be either on or off. A one (1) will represent an on or “True” status and zero (0) will represent an off or “False” status. This … Read more

PLC Learning Series – Memory Backup

PLC Learning Series – Memory Backup

PLC memory is very similar to personal computer memory. There is the operating system and firmware of the processor and connected modules. PLC programs and data that are used by the program are also stored in the memory. We will now look at the basic understanding of memory in the PLC. Looking at two examples … Read more

PLC Learning Series – What are Outputs?

PLC Learning Series - What are Outputs?

PLC outputs are the next component of our PLC block diagram. The PLC program will control the outputs of the PLC. Controlling outputs is one way to get the inputs to change. We will be looking at digital and analog outputs that can be wired to the programmable logic controller. PLC troubleshooting outputs will also … Read more

PLC Learning Series – What are Inputs?

PLC Learning Series - What are Inputs?

PLC inputs are one component of our PLC block diagram. The output actions of the PLC will be controlled based on the inputs. We will be looking at digital and analog inputs that can be wired to the programmable logic controller. We will be looking at wiring of a normally open (NO) push button, normally … Read more

Can I Use CLAUDE AI to Program a PLC Successfully?

Can I Use CLAUDE AI to Program a PLC Successfully?

We will be using Claude AI Desktop to determine if we can program a PLC using a ladder logic diagram. Has AI learned enough to be useful when programming? We will take the results and enter the AI PLC program into the Do-More Designer PLC Simulator to verify. Remember that any AI output result needs … Read more

Master PLC & Industrial Automation

From Beginner to Pro: Learn PLC programming, HMI design, simulation & real‑world troubleshooting.[Start Learning] [Browse Tutorials] Featured Series Machine Simulator (EasyPLC Suite) – Simulate real industrial systems and build your skills safely. Click PLC Series – Learn programming for Click PLCs: Ladder Logic, Timers, Communications, etc. LS Electric XGB PLC – Deep dive into XGB … Read more

What is PLC Logic in Scan Cycles REALLY Doing?

What is PLC Logic in Scan Cycles REALLY Doing?

Discover the inner workings of PLC logic in scan cycles and unlock a deeper understanding of industrial automation. We delve into the world of Programmable Logic Controllers, exploring the intricacies of scan cycles and how they execute PLC logic. Learn how PLCs process inputs, execute programs, and update outputs in a continuous cycle, and gain … Read more