to write a device driver for modbus protocol


Thread Starter


I want to write a device driver for modbus protocol, can any body help me in writing a device driver? client requirement to implement it as a DLL.

The implementation is required for RS 232 port and E/N port.
Well, there is a very simple way of doing it, since Modbus Protocol is an open one, you just have to make the wrapper for the ascii strings you send to the devices as question, the device replies you with the requested information or an error code instead.

You can download the modbus Protocol reference from Website
I have some samples in VB,and Delphi.
I might be of some assistance also. [email protected]