Digital signal

[aeastet]

What is going to need to be different between the two control loops for the big and small? Is it just the channels that you are going to be reading?

[aeastet]

Here is a cleaned up version of what you posted earlier.

Yo uneed to try and keep everything on one window. It is much easier to read. Clean your code often.

[T_Mike]

Dear,

I can't open the VI, because it's a LabVIEW 2010 version. I have LabVIEW 2009 and I'm unable to open the VI. Can you please save it as an older version and post it again?

Regards,

Michael

[T_Mike]

If it is possible to download LabVIEW 2010 via the NI website, then I'll have the 2010 version within 3,5 hours  

Regards,

Michael

[aeastet]

Here is 2009

[T_Mike]

Dear aeastet,

Thanks for cleaning up the VI. I see that you have placed an event structure in the upper for loop. What is the benefit of this? My problem with this VI is that I don't know how to duplicate the code in order to make the big cylinder work. I have tried to make a new for loop and state machine but I didn't manage to make the big cylinder work. Below are all the channels that are used to control the cylinders:

Analog output proportional pressure control big cylinder

o     AO0 (manual control 0-10 V)

•     Analog output proportional pressure control small cylinder

o     AO1 (manual control 0-10 V)

•     Digital output poppet

o     DO4 (manual control logic low of logic high)

•     Digital output valve pull big cylinder

o     DO3 (open; Logic Low = 0 V to +0.8 V/ close; Logic High/ hold; logic low)

•     Digital output valve push big cylinder

o     DO2 (open; Logic High = +2 V to +5 V/ close; logic low/ hold; logic low)

•     Digital output valve pull small cylinder

o     DO1 (open; Logic Low = 0 V to +0.8 V/ close; logic high/ hold; logic low)

•     Digital output valve push small cylinder

o     DO0 (open; Logic High = +2 V to +5 V/ close; logic low/ hold; logic low)

What is the best way to make the other cylinder work?

Regards,

Michael

[aeastet]

SO you need the same control loop with different channels. Do you need to run them at the same time?

[aeastet]

I am also going to need a little more information on what you are trying to do with this program.

I start the program then this does this and then I expect this to do this etc...

[aeastet]

First I think I would break up the loops as follows:

One loop for AO

One loop for AI

One loop for DI/O

One loop for processing

This will make it a little easier to start adding what you need. Once we get these broken appart then we can start figuring everythig else out.

[T_Mike]

I think the control loops can run at the same time, but I want to control both cylinders separately. I don't think it's a good idea to break up the loops as you suggested. I want to make two different loops (if this is necessary?), one for the big cylinder and one for the small cylinder. The lay-out of the VI is good, I only want to add an extra for loop and state machine. I can make a separate VI and make a sort of LabVIEW-project, but I want the two codes implemented in one VI and one front panel. I sort of want to split the signals like this:

Small cylinder: AI0, AO0, DO2:3

Big cylinder: AI1, AO1, DO0:1

General (poppet): DO4

Regards,

Michael