send()
描述
將引數設定至 ModbusMasterNode
類別中的私有陣列 writeData
中,並自動堆疊資料,和 beginTransmission 與無參數的 writeMultipleRegisters 搭配使用。
writeData
是使用 Write 功能碼的 Modbus 封包內容。
語法
node1.send(value)
參數
node1
: ModbusMasterNode
物件。
value
:填入 writeData
陣列的數值,即欲傳送的 Modbus 封包內容,型別可為 uint8_t 、 uint16_t 或 uint32_t 。
範例
#include <Arduino.h> #include <Modbus86.h> ModbusMaster bus1; ModbusMasterNode node2; uint8_t reg[2]; uint8_t result; void setup() { while(!Serial); bus1.begin(MODBUS_RTU,Serial1); node2.attach(16, bus1); reg[0] = 0x1234; reg[1] = 0xabcd; node2.beginTransmission(5); node2.send(reg[0]); node2.send(reg[1]); result = node2.writeMultipleRegisters(); if (result != MODBUS_SUCCESS) { Serial.print("ErrorCode: "); Serial.println(result); } } void loop() { }
See Also
- beginTransmission()
- writeMultipleRegisters()
The text of the 86Duino reference is a modification of the Arduino reference, and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.