.. _set_output_register_float:

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

**Definition** |br|
``DRFLEx.h`` within class `CDRFLEx`, public section

.. code-block:: cpp

   bool set_output_register_float(unsigned short address, float val) {
       return _set_output_register_float(_rbtCtrl, address, val);
   };

**Parameter**

.. list-table::
   :widths: 20 20 20 55
   :header-rows: 1

   * - **Parameter Name**
     - **Data Type**
     - **Default Value**
     - **Description**
   * - address
     - unsigned short
     - -
     - Output register address (float type, 0~23)
   * - val
     - float
     - -
     - **Float value** to write

**Return**

.. list-table::
   :widths: 25 75
   :header-rows: 1

   * - **Value**
     - **Description**
   * - 0
     - Error: failed to write output register float
   * - 1
     - Success: output register float written

**Example**

.. code-block:: cpp

   #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 float and read back (timeout 300 ms)
       // Initialize to 0.0f to indicate “not read yet” if the call fails.
       float out_float = 0.0f;
       robot.set_output_register_float(0, 2.0f);
       robot.get_output_register_float(0, out_float, 300);
       std::cout << "addr=0, out_float=" << out_float << std::endl;

       robot.close_connection();
       return 0;
   }

This example writes a float value to the output register at **address 0 (Float_Output_Register[0])** and reads it back.