Industrial Automation

Example Application: Reading ControlLogix Tags into a Siemens S7-1200

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In my last article, I went through the necessary steps to read and write data to and from tags in a ControlLogix via a program in a Siemens S7 PLC. In today's article I'll go...

How To Read and Write to ControlLogix Tags from a Siemens S7 PLC

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I would think that it would be extremely nice to have an entire manufacturing environment using the exact same control system with the same hardware and software throughout, but I can imagine that there...

Ask Me Anything about the PLC-5

After getting my electronics degree over thirty years ago, I landed my first job in the industrial automation industry as an Inside Technical Specialist. That job was basically a technical support position with some...

Writing your first TIA code in SCL

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Sometimes it's hard writing PLC code in LAD (ladder logic) or FBD (function block diagram). Especially, if you have to do some math work or mass operations. In these cases you can easily use SCL/ST...

New User Project: Flashing Lights with a PLC

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I was nineteen years old the first time I ever used a computer and learned the possibilities of what would be my career ahead, but young people today have an advantage. They have used phones,...

Estimating The Capacity Of A ControlLogix System

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Last week I covered how to quickly put together a ControlLogix system BOM using IAB. Today I'll walk you through two ways you can use the same software to to insure your design does not...

Honeywell Fault Tolerant Ethernet and Control Firewall

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After a previous article about Honeywell Experion Controllers with PMIO, I received some feedback in regards to how Experion controllers connect to a process control network (PCN). I wanted to provide a short overview in...

Selecting Components For A ControlLogix System

You've been asked to put together a bill of materials for a control system based on Rockwell's ControlLogix architecture, and after spending some time on the Rockwell website you might feel like your drinking...

Using Function Blocks in the S7-1200

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When we develop programs in any application, it's important for the project to be as efficient, as consistent, and as accurate as possible. Something that Siemens has incorporated into their PLC’s to help with efficiently...

Connecting a Siemens HMI Basic Panel to ControlLogix

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The KTP700 Basic HMI includes a feature that also allows it to connect to PLC systems other than Siemens PLC’s. This could be of helpful to those looking for a single HMI model that...

Technology Object – PID_Compact

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So far in this series I've created a functioning PLC program in my S7-1200, and an HMI project in my Basic Panel to manipulate and operate the program. Now I'm looking to enhance my application...

Upgrade Your Career: ControlLogix Training Sale

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The industrial automation market in the USA is heating up, and many companies are finding it hard to hire people with the knowledge needed to maintain and upgrade automated systems. And it's times like these...

Siemens HMI Basic Panel – First Graphic Display

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Now that I have my KTP700 Basic HMI included in my TIA Portal Project, it is time to create a couple of graphical displays that will allow me to interact with the program that...

Siemens HMI Basic Panel – First Project

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I've been working through my “Home Sprinkler System” project, and now have an S7-1200 PLC that contains a small but functioning program that will run a sequence of sprinklers around my lawn. The next step...

PLCnext: The Next Generation of PLCs (P68)

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In this episode of The Automation Podcast, I sit down with Ira Sharp from Phoenix Contact to get up to speed on their next gen PLC line, PLCnext. For more information, check out the "Show...

S7-1200 First Program – Home Sprinkler System

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In my previous articles I've covered installing and licensing the TIA Portal software, setting up and configuring the CPU and I/O modules, as well as compiling and downloading a program, and then going online...

S7-1200 Going Online, Run Mode, LED & CPU Status

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In the last article I ended after compiling and downloading to the S7 1200. In this article, I am going online with the CPU, changing the Mode to “RUN” and exploring the status information and...

Book Review: Introduction to Programmable Logic Controller & Ladder Logic

Today's article is the first in a news series I'm writing in which I'll review books about PLCs. To start, I'm going to review those PLC books which are free to read with a $10/mo...

TIA Portal First Steps: Add CPU, Configure, and Download

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In my last few articles I've covered unboxing my new Siemens Starter Kit, assembling the hardware, connecting power, installing and licensing the TIA Portal software, and creating my first project. In this article, I will...

Licensing and Opening TIA Portal for the First Time

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In my first article on the Siemens Starter Kit, which includes the S7-1200 FailSafe CPU, I covered unboxing and contents, powering up the unit and loading the Simatic software. The next step seems to be...