get_input_register_float

This function reads a float value from the controller input register using the specified register address. It is typically used for PLC I/O register monitoring in Ethernet-based environments.

Definition
DRFLEx.h within class CDRFLEx, public section

bool get_input_register_float(unsigned short address, float& out_val, int timeout_ms = 300)
{
    return _get_input_register_float(_rbtCtrl, address, &out_val, timeout_ms);
};

Parameter

Parameter Name	Data Type	Default Value	Description
address	unsigned short		Input register address (float type, 0~23)
out_val	float&		Input float value to read
timeout_ms	int	300	Timeout in milliseconds

Return

Value	Description
0	Error: failed to read input register float
1	Success: input register float read

Example

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

using namespace DRAFramework;

int main() {
    CDRFLEx robot;

    const char* ip = "192.168.137.120";
    if (!robot.open_connection(ip)) {
        std::cout << "Failed to connect: " << ip << std::endl;
        return 1;
    }

    // Read float (timeout 300 ms)
    // Initialize to -1.0f to indicate “not read yet” if the call fails.
    float out_float = 0.0f;
    robot.get_input_register_float(0, out_float, 300);
    std::cout << "addr=0, out_float=" << out_float << std::endl;

    robot.close_connection();
    return 0;
}

This example reads the input register float value at address 0(Float_Input_Register[0]).