got input to input error when using subvi to connect another subvi

[cguan]

I want to connect two subvi, one is a serial port setup and the other is serial control, I use a third subvi, connect.vi, to connect two visa reference name together, but I got error" You have connected an inout of subvi to an input of subvil".  

However, if I define a visa reference name in the connect.vi and connect to serial control, no complain.

What did I dio wrong? Please see the attached vi file.

Thanks

[Dennis_Knutson]

Well, of course you have no error when you connect the constant. That wire between the two VIs needs a source. If you ha a VISA Resource out from sbVI 1, then you could wire that to the resource input of subVI 2. That's basic dataflow - connect a data source to a data sink.

[cguan]

Here is my problem, I don't want to display any of the controls in connect.vi, all the controls are in setup.vi where my source should be in.

How am I able to serial_ctrl.vi without showing all of those controls in the main vi(connect.vi)?

[cguan]

In other word. how do I change all the controls in setup.vi to output?

[tbob]

---

cguan wrote:
In other word. how do I change all the controls in setup.vi to output?

---

You would have to change the control to an indicator, each one individually.  Right click on the control and select Change to Indicator.

[smercurio_fc]

I'm confused as to what you're actually trying to write. Did you actually write the "serail_ctrl" [SIC] VI? I doubt it, considering the question you're asking. That has a serial port setup in it, though it's poorly configured as fas as the connector pane.

[cguan]

I can add indicators for each of the controls and the hide them from the front panels, that work-around can solve the problem.

Actually, what I really want  to create a wizard to run setup.vi first, then click a next button to goto another dialog to run serial vi.

Any examples? 

Thanks

[cguan]

I did wirte the serial_ctrl.vi which is my first labview code, it is not quite prety