iotClient 是对一些工控协议操作的一些封装，可以通过非常简便的代码，非常方便的接入一些工控协议，例如Modbus,Rs465,OPC,BacNet,ProfiBus等。IotClient is a encapsulation of some industrial control protocol operations, which can be easily accessed through very simple code, such as Modbus, Rs465, OPC, BacNet, ProfiBus, etc
