我现在使用JavaScript重写DLT645协议，基于Node-red平台。开源协议可能在木兰和GPL选择之一。而且改写后使用tcp通讯转Rs485实现，通讯测试基本成功。当然，实际开发项目中，基于稳定，给客户使用1个PLC访问10块电能表轮询通讯，Node-red同样发挥很重要作用，作为PLC访问读取并且存储相关数据于Mariadb 数据库，同时启用dashboard插件实现数据展示界面。
translation:
I am now using JavaScript to rewrite the DLT645 protocol based on the Node-red platform. The open source protocol may be selected between Mulan and GPL. And after the rewrite, it uses TCP communication to RS485, and the communication test is basically successful. Of course, in the actual development project, based on stability, Node-red also plays an important role in providing customers with 1 PLC to access 10 electric energy meters for polling communication. As PLC accesses, reads and stores relevant data in the Mariadb database, and enables the dashboard plug-in to realize the data display interface.
