该库可让您的ESP8266通过Modbus协议进行通信。 Modbus是工业自动化中使用的主从协议,可用于其他领域,例如家庭自动化。 Modbus通常使用串行RS-232或RS-485作为物理层(然后称为Modbus串行)和通过以太网或WiFi的TCP / IP(Modbus IP)。 在当前版本中,该库允许ESP8266作为从站运行,通过无线网络支持Modbus I
ESP8266 module configuration as slave Modbus TCP / IP is performed, a Modbus TCP IP simulator is used as the master network. 1module ESP8266 send in Holding Register [0] one Random value generated by the module internally, it will be displayed from the Modbus Master Simulator. 2The serial ...
There have been numerous applications in the ESP8266, I have taken as a goal to integrate this module into one of the industrial protocols most commonly usedModbus TCP IP, it would be good to have a node or sensor that sends data or a driver, OPC, PAC, PLC, HMI or SCADA. A long t...
The Modbus generally uses serial RS-232 or RS-485 as physical layer (then called Modbus Serial) and TCP/IP via Ethernet or WiFi (Modbus IP). In the current version the library allows the ESP8266 operate as a slave, supporting Modbus IP via wireless network. For more information about Modb...
The routine created in Arduino IDE,ESP8266performs the reading of the meterPZEM-004through the serial port, from previous tests with Modbus TCP / IP a routine was created cut forsending and receiving of Holding Registers. 4 variables have been defined in 4 Holding Registers: ...