How to synchronize the Acquization part and control part?

[John Rich]

I'm still on LV 6.1 so I can't read your vi. I would be happy to take a look at it if you would repost it in 6.1 format.

[Lorand]

The Sub-VIs:
- Steper_SUB.vi
- Setup_6025E.vi
are not included
=> LLB

[chenchen]

Lorand, those two subvis are not very important
for the purpose, and they include some other files.
So I did not upload them.

[chenchen]

John, can you get a labview 7 evaluation version? I am not a full time worker, so the resource is very limited(not easy to find a Labview 6.1). Or you can post
several samples which can demonstrate all the ways to sychronize the DAQ. This is a missing part for many of us.

[John Rich]

You should be able to use the "Save to previous" feature to save your LV 7 vi to LV 6.1. Look under "Save with Options" to find this feature.

[chenchen]

This is a test program. Only check one analog
input.

[chenchen]

All the files here.

[Lorand]

Look at the "red" commentfields in the attached VIs

comment: 2 comments
solution: 4 comments

Is this what you wanted?

[chenchen]

Thanks a lot Lorand. There is one thing not clear
to me. There are 3 states in this machine. In each
state, the program will stay there about 5 seconds.
In the new solution, how to add this feature?

[John Rich]

I see that Lorand has applied comments and a solution below. I expect that he pointed out that your vi is very hard to read because of the sequence structures and the fact that these are spread out over a wide area. Also, you used a lot of local variables which could be avoided in a true state machine structure.

It appears to me that you have a specific point in your program where you want to retrieve data and at another point you want to write data to port. This is easily accomplished with queues and notifiers. I can't read Lorand's solution (LV 6.1), but I expect that the solution deals with these issues appropriately.