Definition

Modbus is a widely used communications protocol and set of standards that enables communication between industrial and automation equipment, particularly in the field of industrial control systems (ICS) and supervisory control and data acquisition (SCADA) systems. It was developed in the late 1970s and has since become an industry-standard protocol for facilitating communication between various electronic devices and systems in industrial settings. Key characteristics and components of Modbus include Serial and Ethernet Communication, Client-Server Architecture, Data Types, Communication Modes, Master-Slave Relationship, read and Write Operations, and open protocol.