[Modbus]
描述
Send a packet command to the Slave node to write to a single Holding Register register.
語法
node1.writeSingleRegister(write_address, write_size)
參數
node1: ModbusMasterNode Object.write_address: The address of the Holding Register to be written to.write_size: The size of the Holding Register to be written to.
回傳
Int: If it succeeds, send back MODBUS_SUCCESS and vice versa, send back EXCEPTION_CODE.
範例
#include <Modbus86.h>
ModbusMaster bus1;
ModbusMasterNode node1;
uint8_t result;
uint16_t value = 0x12AB;
void setup()
{
while(!Serial);
Serial1.begin(115200);
bus1.begin(MODBUS_RTU, Serial1);
node1.attach(16, bus1);
result = node1.writeSingleRegister(5, value);
if (result != MODBUS_SUCCESS) {
Serial.print("writeSingleRegister => ErrorCode: ");
Serial.println(result);
}
}
void loop() {}也可以看看
函式庫參考主頁面
86Duino 參考的文本是根據 知識共享署名-相同方式分享 3.0 許可證，部分文本是從 Arduino 參考 修改的。 參考中的代碼示例已發佈到公共領域。