Serial port state

[Break_da_funk]

Hello!

How can I check a com port state: opened/closed by using Visa Serial components?

I found property: "Serial settings: Is port connected?" but when I'm trying to use it LabView says:

I'll be grateful for help.

BR,

Artur

[asbo]

There may be an easier/cleaner way, but you could attempt to open the port; if it fails, it's in use. Make sure you close it again, though.

[Break_da_funk]

There may be an easier/cleaner way, but you could attempt to open the port; if it fails, it's in use. Make sure you close it again, though.

Thank You for reply.

So...open port and check error string and if error string = null then port status is "opened"?

[asbo]

Thank You for reply.

So...open port and check error string and if error string = null then port status is "opened"?

Just wire the error output into a case structure. In the "Error" case, put a "Clear Error" and pass False to your "In Use?" output. In the "No Error" case, close the port and pass out True.

[Break_da_funk]

Just wire the error output into a case structure. In the "Error" case, put a "Clear Error" and pass False to your "In Use?" output. In the "No Error" case, close the port and pass out True.

Thank You for the suggestion.