ModBus通讯协议分为RTU协议和ASCII协议，我公司的多种仪表都采用ModBus RTU通讯协议，如：YD2000智能电力监测仪、巡检表、数显表、光柱数显表等。下面就ModBus RTU协议简要介绍如下： 一、通讯协议-ModBus RTU communication protocol into ASCII protocols and agreements, the company used a variety of instruments ModBus RTU communic

仪表式显示控件，生产文件为DLL，添加为引用后可以使用。-Meter-type display control, production documentation for the DLL, add the following can be used as a reference.