sending instructions through to the serial port, without using I/O assistant

[basil69]

Hi there
I was wondering if anybody could help me with the Labview program for a project that I am currently doing. Basically I would like to communicate to a motor controller through the serial port. I have purchased a simple controller which makes use of a pic microprocesssor. Basically various command strings are sent to the controller. Now I would like to send these same strings using Labview. Basically the controller controls two 12 V DC motors in forward and reverse with 10 speed settings. Can someone help.

Thanks

[Dennis_Knutson]

Instead of using I/O Assistant, you would use VISA Write and Read for communication. The I/O Assistant uses the same calls and if you create something with the assistant, you can always convert it to a regular VI. For serial comm in general, Ni has a tutorial here that should help you get started.