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Writing to PLC inputs

leevi.parssinen 2 years ago in Game4Automation Starter and Professional updated by Support 2 years ago 2

Hi,

If i have PLC connected and imported signals...how would i approach writing for example a velocity of a rigid body into the value of a PLC signal under TwinCATInterface?

Answer

Answer
Under review

Hi Leve,

I assume that you are having PLCInputs and PLCOutputs in your project after importing from TwinCAT:


Now you can write to the PLCInput with 

PLCInput.Value = YourValue;



You should write your own behavior scripts and attach this to the Gameobject with the rigid-body where you want to measure the velocity.


Here is a simple example of a behavior script (it is the Sensor_standard script from the Game4Auomation Framework).

This script is sending a "High" to the PLC when the sensor is occupied.

namespace game4automation
{
  [RequireComponent(typeof(Sensor))]
//! The Sensor_Standard component is providing the Sensor behavior and connection to the PLC inputs and outputs.
public class Sensor_Standard : BehaviorInterface
{

  [Header("Settings")] public bool NormallyClosed = false; //!< Defines if sensor signal is *true* if occupied (*NormallyClosed=false*) of if signal is *false* if occupied (*NormallyClosed=true*)
  [Header("Interface Connection")] public PLCInputBool Occupied; //! Boolean PLC input for the Sensor signal.

private Sensor Sensor;
private bool _isOccupiedNotNull;

// Use this for initialization
void Start()
{
_isOccupiedNotNull = Occupied != null;
Sensor = GetComponent<Sensor>();
}

// Update is called once per frame
  void Update()
{
bool occupied = false;

// Set Behavior Outputs
if (NormallyClosed)
{
occupied = !Sensor.Occupied;
}
else
{
occupied = Sensor.Occupied;
}

// Set external PLC Outputs
if (_isOccupiedNotNull)
Occupied.Value = occupied;

}
}
}

GOOD, I'M SATISFIED
Satisfaction mark by leevi.parssinen 2 years ago
Answer
Under review

Hi Leve,

I assume that you are having PLCInputs and PLCOutputs in your project after importing from TwinCAT:


Now you can write to the PLCInput with 

PLCInput.Value = YourValue;



You should write your own behavior scripts and attach this to the Gameobject with the rigid-body where you want to measure the velocity.


Here is a simple example of a behavior script (it is the Sensor_standard script from the Game4Auomation Framework).

This script is sending a "High" to the PLC when the sensor is occupied.

namespace game4automation
{
  [RequireComponent(typeof(Sensor))]
//! The Sensor_Standard component is providing the Sensor behavior and connection to the PLC inputs and outputs.
public class Sensor_Standard : BehaviorInterface
{

  [Header("Settings")] public bool NormallyClosed = false; //!< Defines if sensor signal is *true* if occupied (*NormallyClosed=false*) of if signal is *false* if occupied (*NormallyClosed=true*)
  [Header("Interface Connection")] public PLCInputBool Occupied; //! Boolean PLC input for the Sensor signal.

private Sensor Sensor;
private bool _isOccupiedNotNull;

// Use this for initialization
void Start()
{
_isOccupiedNotNull = Occupied != null;
Sensor = GetComponent<Sensor>();
}

// Update is called once per frame
  void Update()
{
bool occupied = false;

// Set Behavior Outputs
if (NormallyClosed)
{
occupied = !Sensor.Occupied;
}
else
{
occupied = Sensor.Occupied;
}

// Set external PLC Outputs
if (_isOccupiedNotNull)
Occupied.Value = occupied;

}
}
}