If you’re a user of the Allen-Bradley ControlLogix Ethernet driver in TOP Server for AVEVA, you may be familiar with the different protocol modes available during device configuration. The three distinct options of Symbolic, Logical Blocking, and Logical Non-Blocking provide users with advanced control over how data is read and addressed from the controller.
Configuring protocol modes is usually only suggested for advanced users who have a solid understanding of each mode, and how their Logix programs are structured. To that end, continuing our Tech Support Corner blog series, this blog post will break down each of these protocol modes, while exploring their benefits and drawbacks, to provide you a clear understanding of each protocol. This post will provide the advanced knowledge needed in a usable way to best serve your own project!