Intelligence Transmitter for Pulp Consistency Based on CAN Bus Technology

Aimed at solving the defects existing in the analog transmitter instruments controlling procedure of pulp concentration low precision and stability,high power consumption and expensive maintenance cost,an intelligence transmitter with CAN bus communication function for pulp consistency control was described.Methods to design hardware and software of the transmitter were introduced in detail.The hardware comprises industry PC,single chip MSC1211Y5,controller SJA1000CAN and transceiver 82C250CAN;it can realize checking,conversion,calculation and communication of pulp concentration parameters.In the software aspect,the main program,sending and receiving subprogram flow chart on CAN correspondence were given.The system has the advantages such as simple structure,good practicality,low power consumption,high reliability and anti-jamming.