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

免疫粒子群算法用于PID整定。采用线性惯性系数，自适应交叉变异方法-Immune Particle Swarm Optimization for PID tuning. Linear inertia coefficient, adaptive crossover mutation method