Are you an automation professional or part of a department that requires real-time data from a manufacturing or process plant? If so, using Microsoft Excel and Dynamic Data Exchange (DDE) communication can help you achieve this goal. In this article, we will explore how to configure and utilize DDE to connect Microsoft Excel with Rockwell Controllers.
Contents
Understanding DDE and Its Benefits
Dynamic Data Exchange (DDE) is a method of interprocess communication in the Windows operating system. It enables applications to communicate and automate the transfer of data without manual copying and pasting. In this context, DDE allows Microsoft Excel to communicate with Rockwell Automation Studio 5000, RSLinx Classic, and Studio 5000 Logix Emulate software.
Creating a Sample PLC Program
To begin, we need to create a sample PLC program using Studio 5000 Logix Designer. This program will generate simulated process values that we can display in Excel spreadsheets. By creating tag arrays, timers, and other simulated values, we can establish a connection between the PLC program and Excel.
Configuring DDE Communication
Before we can establish communication between Microsoft Excel and Rockwell Controllers, we need to configure the necessary drivers. We will use RSLinx Classic as the intermediary between Studio 5000 Logix Designer and Excel. By configuring drivers and creating a DDE topic, we can set up the connection required for data exchange.
Reading PLC Data in Microsoft Excel
Once the configuration is complete, we can start reading real-time data from the PLC program in Excel. By utilizing the DDE function, we can retrieve and display values such as the Timer01 accumulated milliseconds and seconds. This data can be used for decision-making, accounting, or any other relevant purposes.
Take Your Automation Skills to the Next Level
We hope this article has provided valuable insights into configuring and utilizing DDE to integrate Rockwell Controllers with Microsoft Excel. By following these steps, you can access real-time data and enhance your automation capabilities. If you’re interested in further training on this subject or similar topics, let us know in the comment section. And don’t forget to check back for more automation control topics and download the RealPars app for even more practical knowledge on PLC Hardware. Happy integrating!
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