boolean ModBus_WriteRegisterReal (int $InstanceID, float $Value)
ID of the device to be switched
32bit floating point value according to IEEE754
If the command succeeds, it returns TRUE, otherwise FALSE.
Sets address with ID InstanceID to Value
//Writes 23.5 into the register of the instance with the ID 12345 ModBus_WriteRegisterReal(12345, 23.5);