Modbus Gateway Solutions is a serial communication protocol which was firstly published by Medicon in1979 to use in PLCs (Programmable logic controller). It is a standard communication protocol which is easily available means of connecting industrial devices.
It is used in multiple master -slave applications to monitor & program devices & to communicate between intelligent devices & sensors & instruments to monitor field devices using PCs & HMs. There are two kinds of Modbus Protocols; Modbus RTU & Modbus TCP.
It is a Master – slave configuration where in only one Master device that communicates over a single loop with multiple slave devices. It uses the physical interfaces like RS 485 – RS 232.
It is a Client – server configuration where in one or more than one Master device communicates with single devices. It runs on an Ethernet physical layer.
Advantages of Modbus Gateway Solutions
- It builds an easy connection to Medicon of Honeywell systems.
- It is very much suitable for small to medium volumes of data (<=255 bytes).
- It enables acknowledged data transfer.