Coding Relay with Compressor

[billbo911]

Originally Posted by Alan Anderson

Why are you defining an explicit relay for the compressor instead of using the Open Compressor vi? It's a lot less of a hassle to let the library code deal with reading the pressure switch and running the compressor as needed.

Why??
Because there is always more than one way to skin a cat.

Besides, my students now know the logic and coding a bit better than if they let a library do the work for them. I agree it is simpler to have the library do the work, but thinking your way through this process makes the learning that much richer. Additionally, troubleshooting the problems we ran into also made them dig a lot deeper into the code than if it just worked and they didn't know why.

[Poke2201]

Alright, Looking around on here, there seems to be one thing I didn't notice. We cant get a RSL on. Both of our Sidecars do not have RSL leds on or doing anythign at all. Also 2 out of 3 power lights are on, the 6v and Bat are on, but 5v isnt.

[Joe Ross]

Originally Posted by Poke2201

Alright, Looking around on here, there seems to be one thing I didn't notice. We cant get a RSL on. Both of our Sidecars do not have RSL leds on or doing anythign at all. Also 2 out of 3 power lights are on, the 6v and Bat are on, but 5v isnt.

Disconnect everything from the digital sidecar (including the 37) pin cable, so that just the power cable is plugged in. If you still only have some of the power leds, there is a problem with the digital sidecar. If all power LEDs are on, add each cable one at a time and see which one causes the 5v power LED to go out.

[Poke2201]

I changed the wiring to the PD board, now everything is on, EXCEPT FOR THE RSL LED!!!!


Update: Got RSL led on, Now I gotta get the Relay to actually turn on. Should I upload pictures of my begin vi? And I deleted the Compressor being enabled by a joystick button. Do I need to use enable compressor for anything?

[Greg McKaskle]

By the way, if you are going to develop on the classmate and your hands aren't the right size, try connecting a USB keyboard. I like connecting a mouse as well.

Greg McKaskle

[Mark McLeod]

Originally Posted by Poke2201

I changed the wiring to the PD board, now everything is on, EXCEPT FOR THE RSL LED!!!!


Update: Got RSL led on, Now I gotta get the Relay to actually turn on. Should I upload pictures of my begin vi? And I deleted the Compressor being enabled by a joystick button. Do I need to use enable compressor for anything?

What did you do to get the RSL back?

Just post the Begin.vi itself instead of a picture. It's easier to check that way. Ther's always something off the edge of the photo that can't be seen and should be.

You only need to use Compressor Start.

Compressor Enabled is only there to let you check if the compressor is on or not. It doesn't take any action. It's like getting the value of a button off a joystick Get.

[umangv620]

(kinda off topic)According to my knowledge, FIRST does not support windows 7 with LabView. But if it works for you, great!

[Poke2201]

Alright Ill post our code on it, I followed your examples in the begin.vi though

[Poke2201]

Begin vi.

[Poke2201]

Solenoid and compressor vi. doesn't work, watch dog times out too fast