Developing the Host Link Units for Omron PLCs
If you're tired of using complex non-realtime COM/COM+ components (as I'm ) that force you to connect Omron PLC series and are interested in an easy understanding, open source, real real-time .NET based object, you've just selected the right article. This project introduces a purely code-based Host link protocol implementation, which you can easily add to your project and ensures you a safe, reliable RS232/485 PC-PLC communication. You might find more information from the following link: https://www.codeproject.com/Articles/189159/Omron-PLC-Serial-Interface