rs485 modbus协议程序 -rs485 modbux protocal

基于RS232/RS485通信协议的 Linux 串口通信动态链接库封装的实现。-Realization of dynamic link library for Linux serial communication

本例程演示了PC机和智能型仪表如何通过RS485接口进行通信。仪表采用专家自整定PID调节器，该仪表的通讯协议已经在例程代码中作了详细说明。-This routine demonstrates how PC and intelligent instruments through the RS485 interface to communicate. Instrument using the self-tuning PID regulator, the instrument of the comm