modbus读写器，仪器仪表控制 visual c++ 编写-visual c++

用真实圆形仪表盘为背景，实现了高仿真圆形仪表。可以用于虚拟仪器和工业监控。-True circular dashboard background, to achieve high simulation round instrument. Can be used for virtual instruments and industrial control. Undo edits