Application of two kinds of field bus protocols on MODBUS-RTU and PROFIBUS-DP in the motor management controller is introduced.

Based on the example of CP1H PLC of OMRON,this paper describes how to use OMRON CP1H as prime station to control several 3G3MV transducers to work together,and how to deal with the hardware,the port variable and the data transmission format in Modbus-RTU.

Aimed at realizing continuous production of a vacuum plastic molding machine for high efficiency and high-precision,using communication technologies based on the Modbus-RTU,the hardware framework of control system and process control software were designed.

Using SIEMENS CP341 to Realize Modbus RTU Communication;

Application of CRC Algorithm Based on MODBUS RTU Communication Protocol;

The Modbus RTU stipulations agreement is briefly introduced in this paper.

Network inquiry and control system to controlmonitors based on Modbus/RTU protocol convertor;

Network Inquiry and Control System to Controlmonitors Based on Modbus/RTU Protocol Convertor;

Its communication protocol uses ModBus_RTU to unify the LAB industrial analyzer system and make system extendible conveniently.

Design of the Digital and Intelligent Module based on Modbus RTU Protocol;