Modbus on ControlLogix Serial Port

Modbus on ControlLogix Serial Port An inexpensive way to run Modbus on ControlLogix Serial Port is with an RS232-RS485 Adapter. In short, download Rockwell’s sample code. Apply power to the adapter, and you will be up and running on Modbus! In this case, I’m using cheap Temperature and humidity sensors Read More »


Max485 for RS485 Networks

Introduction to Max485 for RS485 Networks Before we start taking about the Max485 for RS485 Networks, let’s talk about the RS485 network itself. RS485 is a protocol that defines the electrical (physical) characteristics of a network. Although some networks use a 4-conductor model for full duplex, most networks that I Read More »

arduino max485