Categories

Entries for the 'PLC' Category

Source Code Protection For Your SIMATIC S7-1200 PLC in TIA Portal
Jason Mayes

Source Code Protection For Your SIMATIC S7-1200 PLC in TIA Portal

From time to time, we'll run across situations where a client believes it is necessary to lock down code on a PLC. In some cases, there may be valuable intellectual property they would like to protect. In others, its purpose may be to prevent unauthorized modifications to safety-related code, or activation of disabled options. There may also be cases where it is necessary to interlock a PLC program to a specific memory card or CPU, especially in cases where there may be multiple, similar (bu...

Continue reading →


Troubleshooting Your Siemens SIMATIC S7-1200 Timers
Jason Mayes

Troubleshooting Your Siemens SIMATIC S7-1200 Timers

I've done a lot of PLC programming over the last few years. Siemens, Rockwell, Beckhoff, Mitsubishi, Panasonic... if it's IEC61131-3 compliant, I've probably written a few rungs on it. However, I recently ran across an interesting problem that completely stumped me. I was doing a quick test on an S7-1200 PLC (programmed in TIA Portal V13) where I needed to perform a non-time critical operation approximately once a second within a re-usable FB. The two rungs that confounded me and ...

Continue reading →


View DMC's 2014 Siemens Automation Summit Presentations
Tim Jager

View DMC's 2014 Siemens Automation Summit Presentations

DMC attended the annual Siemens Automation Summit last month, held June 23 - 26, 2014. We enjoyed four days of learning and networking with new friends at Walt Disney World's Contemporary Resort in Orlando, FL. The week kicked off with Monday night's popular Connect Event. This casual cocktail event allowed attendees to build their network using a mobile friendly app or website developed by DMC and Prism Systems to connect and share contact information. Attendees also got a previ...

Continue reading →


DMC Joins Siemens SIMATIC IT Partner Program
Tim Jager

DMC Joins Siemens SIMATIC IT Partner Program

DMC is proud to announce its affiliation with the Siemens SIMATIC IT Partner Program. SIMATIC IT Partners offer value added services helping customers realize solutions tailored to their unique business environments in order to maximize the efficiency of MES installations. We're excited to join a community of technical experts with industry specific know-how who are recognized as high-level consultants dedicated to helping customers achieve their business goals. SIMATIC IT Partners a...

Continue reading →


Beckhoff Automation and Programming Demo at DMC
Simon Healey

Beckhoff Automation and Programming Demo at DMC

Beckhoff visited the DMC Chicago office not long ago in order to demo some cool automation equipment. Many of us are already familiar with Beckhoff’s products, but it was really valuable to be able to take a step back from working with the equipment just to see it from an operational standpoint. For those DMC engineers who don’t work with Beckhoff equipment as often, this was an amazing opportunity to get more intimately acquainted with the hardware.  For those who don’...

Continue reading →


Source Code Protection in Studio 5000 Logix Designer
Jason Mayes

Source Code Protection in Studio 5000 Logix Designer

While working with a customer on a recent RSLogix 5000 project (now called Studio 5000), there was a need to protect some proprietary source code. In this particular case, DMC had developed a custom Add-On Instruction (AOI) to be used within the project that contained some unique logic that the client wished to protect. This is incredibly easy to do. Rockwell provides an easy tool for this that comes prepackaged with RSLogix.  Since protecting intellectual property or touchy algorithms w...

Continue reading →


WinCC Professional Popups
Jimmy Condon

WinCC Professional Popups

SyntaxHighlighter.all(); For a recent project using WinCC Professional V12, I needed to have a pop up window that could change based on the screen window that the operator clicks (motor, VFD, valve, etc.). The popup also needed to have its location change based on where the screen window was that the operator clicked. To implement the popup, I added a screen window to the starting screen. I did not assign any of its properties: I gave it a visibility animation based on an internal tag...

Continue reading →


VB Script to Save an SSRS Report as a PDF
Jack Cosgrove

VB Script to Save an SSRS Report as a PDF

Reporting is almost a universal requirement for new projects coming into DMC these days. As part of an HMI we developed for a customer we also installed SQL Server Reporting Services (SSRS) on a Siemens PLC. This is used to generate reports for production batches run on that PLC. The customer desired these reports to be in PDF format, which after some investigation was easy to do with SSRS. A little background on SSRS... SSRS is a web application that generates nice graphical reports from SQL...

Continue reading →


Siemens S7-1200 Web Server Tutorial - From Getting Started to HTML5 User Defined Pages
Tim Jager

Siemens S7-1200 Web Server Tutorial - From Getting Started to HTML5 User Defined Pages

This is a brief tutorial on getting started with the Siemens embedded web server in the S7-1200 and S7-1500.  Using the concepts explained below, you can create a simple web page or a fully featured HTML5 web app.  Getting Started Step 1.  Turn on the web server.  To do this, navigate to the web server menu in the device configuration page and check the box to enable the web server.   Step 2: Download your project to your PLC and browse to its IP add...

Continue reading →


DMC to Present at the Siemens 2013 Automation Summit
Frank Riordan

DMC to Present at the Siemens 2013 Automation Summit

As a Siemens Solution Partner, DMC looks forward to attending the annual Siemens Automation Summit each year. Focused on the end users of Siemens automation products, the Summit offers opportunities for best practice sharing, networking, free hands-on training, and providing product input and prioritization for future enhancements. This year’s event, held June 24 – 27 in New Orleans, focuses on the theme of “Community. Experiences. Productivity."   This year, DMC ...

Continue reading →


Extracting Log Data from a Siemens PLC Using a .NET Client
Jack Cosgrove

Extracting Log Data from a Siemens PLC Using a .NET Client

I had the opportunity recently to work for a client who wanted to extract log data from a Siemens WinAC PLC using a C# .NET client. The application was archiving software that would run when another software component encountered an error. Log data was assembled from a variety of sources in the system stack, including the Siemens PLC. In order to keep the PLC's Step 7 code independent of this diagnostic logging, I used the Siemens WinAC ODK. The WinAC API exposes two interfaces, IPLC and ...

Continue reading →


Automating Siemens S7 and SiMotion Tasks Using C# .NET
Jon Carson

Automating Siemens S7 and SiMotion Tasks Using C# .NET

Siemens offers useful tools for accessing both Simatic and SiMotion projects programmatically, in the form of registered COM Type Library DLLs. These tools offer many exciting possibilities (well, it does if you're like me, and get excited by things like automating automation tools). If you have Simatic Manager installed, the following DLLs are registered with it: S7hcom_x 1.0 Type Library - The default location on my laptop is C:\Program Files (x86)\Siemens\Step7\S7BIN\S7HCOM_X.DLL) S...

Continue reading →


Getting Young Kids Interested in Technology
Frank Riordan

Getting Young Kids Interested in Technology

I'm always trying to get my daughters, ages 8 & 5, interested in what we do here at DMC. It's a challenge because I have a hard enough time explaining what DMC does to someone I meet at a cocktail party, never mind a couple of young kids. However, I recently had two great experiences with them that actually piqued their interest. The first was a trip to Legoland in Carlsbad, California. In addition to Miniland USA, Land of Adventure and other fun rides, there also is a Lego Factory T...

Continue reading →


Automation Redundancy Using ICONICS WebHMI Solutions
Jon Carson

Automation Redundancy Using ICONICS WebHMI Solutions

There are many good options for automation and controls redundancy out there. Here is an example we just recently used in the field. The customer specified a requirement of complete redundancy for all IT, networking, and HMI components of one of a large-scale manufacturing line. The system architecture we chose incorporated thin-client HMIs with server virtualization, off-the-shelf ICONICS redundancy solutions, dual KEPware OPC servers, a custom .NET service, and automatically backed-up SQL data...

Continue reading →


PID with a Siemens S7-1200 PLC
Jason Mayes

PID with a Siemens S7-1200 PLC

A few weeks ago I had the chance to experiment with serial communications using a Siemens S7-1200 PLC outfitted with a CM1241 (RS-485 module). Due to the limited number of projects we've had using the 1200 line of PLCs, this was an office first. And while it was very straightforward, it was still a learning experience. Recently I had another chance to be DMC's S7-1200 pioneer - this time using the S7-1200's PID blocks, and luckily, not involving death by dysentery, cholera, or sna...

Continue reading →


Siemens S7-1200 Serial Communication
Jason Mayes

Siemens S7-1200 Serial Communication

Today, I found myself setting up some simple point-to-point serial communication on a Siemens S7-1200. For the current application, I was writing a simple function block to broadcast data to a Red Lion serial slave display, but there are a variety of situations in which you may need to do to this, such as communicating with a VFD. While there are many people in this office who do this regularly with other Siemens PLCs, it was the first time for any of us on an S7-1200, so I though...

Continue reading →


Using an iPhone to Control a Factory
Jimmy Condon

Using an iPhone to Control a Factory

Most Human Machine Interfaces (HMI) are in a static location. Sometimes, this can be inconvenient if you need to check a device (motor, valve, diverter, etc.), but the sight line from the HMI is blocked and you need to be able to watch the device move. Several projects that DMC has worked on involve a central server (typically Windows Server 2008 R2) that has the HMI editing software (I used Iconics GraphWorx), OPC server for gathering data from the PLC, and the HTML pages used by the thin cl...

Continue reading →


The Basics of Siemens S7 PLC I/O Addressing
Nick Shea

The Basics of Siemens S7 PLC I/O Addressing

Are you a new user of Siemens PLCs a and wondering what terms like "process image" and "peripheral address" mean? What does the "P" in "PIW" stand for? Are you an experienced user and are too embarrassed to ask? Or, maybe you are like me and just need refresher every once in a while? Fortunately, the Siemens support website has a great article that explains these different ways to access I/O for Siemens S7-300 and 400 PLCs. Here are some summary t...

Continue reading →


March Programming Madness - Let the Nerdament Begin
Danny Budzinski

March Programming Madness - Let the Nerdament Begin

With the first few rounds of the tournament in the books, I figured it was time to dive into the first round of our programming language tournament (or Nerdament as I like to call it.) For a rundown of the competitors, you can check out the opening bracket or you can also review some of the snubs. Once you are caught up, I hope that you are as excited for some fast-paced compiler vs. IDE action as I am. Our first matchup features the highly favored C# .Net taking on lowly, old-timey conferenc...

Continue reading →


March Programming Madness - The Bracket
Danny Budzinski

March Programming Madness - The Bracket

With the final few plays of the super bowl still fresh in mind, we enter March on the verge of another of the greatest events in sports, the March Madness of Programming Languages. This epic, world-renowned event (not to be confused with the similarly named athletic event) pits some of best programming languages head to head. At DMC, we pride ourselves in being fluent in many, many software languages from LabVIEW and .Net to PLC’s and microcontrollers. A team of engineers came...

Continue reading →


Page 5 of 7First   Previous   1  2  3  4  [5]  6  7  Next   Last   

Categories