Hi, I am currently working on a project that using VB.net to send string command to a hardware controller. I have the command strings manual. The problem is the command must enter in follow format:

In hyperterminal

#$#&@(#(Enter)
(start next line)

Then the hardware will run.

In VB, the command will be

port.write("#$#&@(#" & Chr(13) & Chr(10))

Chr(13) = Carriage return
Chr(10) = line feed

My new question is how can I enter two command line at the same time, suppose to move the hardware first and return to home next

I entered

port.Write("$&^**&(" & Chr(13) & Chr(10))
port.Write("#$#&@(#" & Chr(13) & Chr(10))

The program only runs the first line and then stopped.

Thank you very much

I think you have to wait for the hardware to complete command 1 before you send command 2.

If the hardware gives no feedback on its status then you can just put a sleep-line between this two lines to wait for some time before sending the second command.

But this depends on the hardware, maybe you have to read some hardware documentation when it is safe to send a new command.

I think you have to wait for the hardware to complete command 1 before you send command 2.

If the hardware gives no feedback on its status then you can just put a sleep-line between this two lines to wait for some time before sending the second command.

But this depends on the hardware, maybe you have to read some hardware documentation when it is safe to send a new command.