ICnetInit()

ICnetInit()

ICnetInit() sets the communication port, station number and baud rate.

void ICnetInit(HardwareSerial& serialPort, uint8_t slaveId, long baudrate)

Commands

Command	Arguments	Return Value	Operation
`ICnetInit(serialPort, slaveId, baudrate)`	`HardwareSerial& serialPort` — Serial port for communication `uint8_t slaveId` — Station number `long baudrate` — Baud rate	`void`	Sets the communication port, station number and baud rate.

Example

This example uses the MPINO-16A8R8T RS-485 port Serial2, input D22, and transistor output D39.

void setup() {
  ICnetMem(64, 64, 16);  // Set the M·D·R memory sizes used by Cnet Slave.
  ICnetAdr(0, 0, 0);  // Set the start addresses of M·D·R memory.
  ICnetInit(Serial2, 1, 9600);  // Set the communication port, station number and baud rate.
  if (M != nullptr) M[0] = false;
}
 
void loop() {
  ICnet();  // Check incoming requests and process Cnet Slave responses.
  if (M != nullptr) M[0] = digitalRead(22) == HIGH;
  if (D != nullptr) digitalWrite(39, D[0] ? HIGH : LOW);
}

Precautions

Keep calling ICnet() in loop().
Set M/D/R sizes within the available SRAM.
When sharing memory with Modbus, check for duplicate allocation and address conventions. Both ICnetMem() and ImodbusRTUMem() reallocate shared M/D. Assign final size management to only one of them and initialize both protocols after the last reallocation.
Allocation functions do not return success status. Check whether M, D and R are nullptr before accessing them in user code.

Built-in Commands in the Same Category

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Table of Contents

ICnetInit()

Commands

Example

Precautions

Built-in Commands in the Same Category