set_output_register_bit

This function writes a single bit to the controller output register using the specified register address and bit value. It is typically used for PLC I/O register control in Ethernet-based environments.

Definition
DRFLEx.h within class CDRFLEx, public section

bool set_output_register_bit(unsigned short address, int val) {
    return _set_output_register_bit(_rbtCtrl, address, val);
};

Parameter

Parameter Name	Data Type	Default Value	Description
address	unsigned short		Output register address (bit type, 0~63)
val	int		Bit value to write 0 : OFF 1 : ON

Return

Value	Description
0	Error: failed to write output register bit
1	Success: output register bit written

Example

#include "DRFLEx.h"
#include <iostream>

using namespace DRAFramework;

int main() {
    CDRFLEx robot;

    const char* ip = "192.168.137.100";
    if (!robot.open_connection(ip)) {
        std::cout << "Failed to connect: " << ip << std::endl;
        return 1;
    }

    // Write bit and read back (timeout 300 ms)
    // Initialize to -1 to indicate “not read yet” if the call fails.
    int out_bit = -1;
    robot.set_output_register_bit(0, 1);
    robot.get_output_register_bit(0, out_bit, 300);
    std::cout << "addr=0, out_bit=" << out_bit << std::endl;

    robot.close_connection();
    return 0;
}

This example sets the output register bit at address 0 (Bit_Output_Register[0]) to ON and reads it back.