ModbusMasterNode.writeMultipleCoils()

[Modbus]

描述

Send a packet command to the Slave node to write to multiple Coils registers.

語法

node1.writeMultipleCoils(write_address, write_size)
node2.writeMultipleCoils()
(See the example to illustrate the different functions and usage methods with or without parameters)

參數

  • node1/node2: ModbusMasterNode Object.
  • write_address: The starting address of the Coils register you want to write to.
  • write_size: The size of the Coils register that you want to write to.

回傳

Int: If it succeeds, send back MODBUS_SUCCESS and vice versa, send back EXCEPTION_CODE.

範例

#include <Arduino.h>
#include <Modbus86.h>
 
ModbusMaster bus1;
ModbusMasterNode node1;
 
uint8_t result;
 
void setup()
{
    while(!Serial);
    Serial1.begin(115200);
    bus1.begin(MODBUS_RTU, Serial1);
    node1.attach(16, bus1); 
 
    node1.setTransmitBuffer(0, true, MODBUS_DATAMODE_BIT);
    node1.setTransmitBuffer(1, false, MODBUS_DATAMODE_BIT);
    result = node1.writeMultipleCoils(5, 2);   
 
    if (result != MODBUS_SUCCESS) {
        Serial.print("ErrorCode: ");
        Serial.println(result);
    }
 
}
 
void loop()
{
}
#include <Arduino.h>
#include <Modbus86.h>
 
ModbusMaster bus1;
ModbusMasterNode node1;
 
uint8_t result;
 
void setup()
{
    while(!Serial);
    Serial1.begin(115200);
    bus1.begin(MODBUS_RTU, Serial1);
    node1.attach(16, bus1); 
 
    node1.beginTransmission(5);
    node1.sendBit(true);
    node1.sendBit(false);
    result = node1.writeMultipleCoils();
 
    if (result != MODBUS_SUCCESS) {
        Serial.print("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 Creative Commons Attribution-ShareAlike 3.0 License，部分文本是從 the Arduino reference 修改的。 參考中的代碼示例已發佈到公共領域。

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