Introduction - If you have any usage issues, please Google them yourself
Modbus has the following characteristics:
(1) standard and open, users can use Modbus protocol freely and safely, without paying license fees and infringing intellectual property rights. At present, more than 400 manufacturers support Modbus, more than 600 kinds of products support Modbus.
(2) Modbus can support a variety of electrical interfaces, such as RS-232, RS-485, etc., and can also be sent on a variety of media, such as twisted pair, fiber, wireless and so on.
(3) the frame format of Modbus is simple and compact, and it is easy to understand. Easy to use and easy to develop.