MODBUS Shared Memory Between Master and Slave


Thread Starter



I'm new to MODBUS. What i want to know is does master and slave actually share memory in between them or do they have separate memory?

The master and slave could only "share memory" if the master and slave ran in the same program.

MODBUS is a communication protocol with some data formatting. The master sends the slave a message, in a specified format (the protocol) and the slave responds, in a specified format (the protocol).

Does your browser and this website "share memory"? No, they exchange data using a protocol and data format specifications (HTML,Javascript,CSS). MODBUS contains both, the protocol and data format.

There are numerous references to MODBUS and how it works on the web. Plus, reading the specification can be the best source.

Good luck,