Chief Delphi - 24V FESTO Solenoid Code

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24V FESTO Solenoid Code

I am trying to finish up some last minute code for our robot and am at a loss for the 24V solenoid provided in the KOP (At least last year). Its double acting and I grasp how it works, but I cant find any documentation on how to program that partiucular solenoid.

I grasp the concept of saying

Solenoid s1 = new Solenoid(8,1);
Solenoid s2 = new Solenoid(8,2);

to initialize the two halves of the double solenoid (with 4 pins plugged into the I/O board)

But how to set which one turns on in code is bewildering to me...as it doesnt appear to be as easy as

if (buttonPressed == true)
{
s1.Set(0);
s2.Set(1);
}

else
{
s1.Set(1);
s2.Set(0);
}

Any pointers on what I'm doing wrong?

Re: 24V FESTO Solenoid Code

Hi John,
You have the right idea with the programming.

We had a method like this for activating pneumatics

Quote:

void ActivatePneumatics(Joystick *currStick, int buttonNum, int SolenoidNumberTurnOn, int SolenoidNumberTurnOff){
if(currStick->GetRawButton(buttonNum)){
m_solenoids[SolenoidNumberTurnOff]->Set(false);
m_solenoids[SolenoidNumberTurnOn]->Set(true);

When one action happens, turn on set of solenoids on and another off.
When we wanted to activate something using this method we structured it like this

Quote:

ActivatePneumatics(m_rightStick, BUTTON_MINIBOT_OUT, SOLENOID_MINIBOT_OUT, SOLENOID_MINIBOT_IN);

Also, we established variables that represented the various buttons we would press in order to do turn on the various solenoids. You should design something like this that fits your needs

Quote:

static const int SOLENOID_MINIBOT_OUT = 1;
static const int SOLENOID_MINIBOT_IN = 2;
static const int SOLENOID_CLAW_OPEN = 7;
static const int SOLENOID_CLAW_CLOSE = 8;

static const int BUTTON_MINIBOT_OUT = 6;
static const int BUTTON_MINIBOT_IN = 7;
static const int BUTTON_CLAW_OPEN = 1;
static const int BUTTON_CLAW_CLOSE = 2;

static const int NUM_SOLENOIDS = 8;
Solenoid *m_solenoids[(NUM_SOLENOIDS+1)];

I hope that helps. Do you have any more questions?

Re: 24V FESTO Solenoid Code

So on the 24V double solenoid valve it's as easy as "true false"? I thought that there were Stations for it like "set_forward" or something similar.