【ESP32】ESP32 Arduino Modbus TCP主站程序

ESP32 Arduino Modbus TCP主站程序安装库代码安装库代码#includeWiFi.h#includeModbus.h#includeModbusIP_ESP8266.hconstchar*ssidA000;constchar*passwordKONGTIAO;IPAddressremote(10,35,0,123);// Address of Modbus Slave deviceconstintserverPort502;ModbusIP mb;voidsetup(){Serial.begin(115200);WiFi.begin(ssid,password);while(WiFi.status()!WL_CONNECTED){delay(500);Serial.print(.);}Serial.println(\nConnected to WiFi);Serial.print(IP Address: );Serial.println(WiFi.localIP());mb.client();//设置esp32为主机}constintLOOP_COUNT10;uint16_tres0;uint8_tshowLOOP_COUNT;voidloop(){if(mb.isConnected(remote)){// Check if connection to Modbus Slave is establishedmb.readHreg(remote,0,res);// Initiate Read Coil from Modbus Slave}else{mb.connect(remote);// Try to connect if no connection}mb.task();// Common local Modbus taskdelay(1000);// Pulling intervalSerial.println(res);}/** uint16_t readHreg(IPAddress ip, uint16_t offset, uint16_t* value, uint16_t numregs 1, cbTransaction cb nullptr, uint8_t uint MODBUSIP_UNIT); uint16_t readIreg(IPAddress ip, uint16_t offset, uint16_t* value, uint16_t numregs 1, cbTransaction cb nullptr, uint8_t uint MODBUSIP_UNIT); uint16_t readHreg(uint8_t slaveId, uint16_t offset, uint16_t* value, uint16_t numregs 1, cbTransaction cb nullptr); uint16_t readIreg(uint8_t slaveId, uint16_t offset, uint16_t* value, uint16_t numregs 1, cbTransaction cb nullptr); */