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 PLC Trainers, Industrial Software, and Automation Solutions
  We created this custom application program using Visual Basic 6.0. This client needed to log data from up to five different PLC's to a database. Any of the five PLCs could be an SLC 5/05, MicroLogix 1100 or Allen Bradley DF1 PLC connected via an 1761-NET-ENI module.  
  The screen shot below shows the interface screen that is used to set the communication parameters for the various PLCs. For this project we used our Allen Bradley Ethernet driver. This driver offers connectivity to the latest Allen Bradley Ethernet enabled automation controllers. The client needed the capability to adjust the poll rate, the PLC registers, the quantity of registers and a trigger bit from this screen.

The application polls the various controllers at the poll rate and checks the trigger bit to see if the bit is on. If the bit is on the application reads all the data registers from the PLC and writes all the data to the database on the host computer. The PLC resets the trigger and we only read the data when the trigger bit is turned on again. This program runs in the background and requires very few computer resources.

We are very good at communicating with our clients to ensure all applications work as required and can provide the source code if they want to support the application. If you have any applications that you need help with please contact us and we will be happy to provide a quote for you.

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