Pleeeese help me - MSCOMM and Serial Comms

[Moppsie]

Thanks for taking the time to consider my problem.

I am developing a POS system which uses a Posiflex customer poll display. With the manual, they provide a number of Hexidecimal codes which can be used to reset, clear, change the font etc, of this display, but I do not know how to send these hex codes to the screen for it to register them as commands. Using MSCOMM, I can output text to the display, but cannot access it's functions. The display uses com2 by the way!

Thank you again for your consideration of my problem.

[PaulLewis]

The manual would probably have also specified the comm port settings as well as tell you what the expected response codes for the command codes would be.

There is possibly a command sequence to send to the unit to set it into config mode or something like that. Much the same as some modems accept a sequence of characters sent within a specific time with a specific interval in order to go into command mode.

It would be awful to have to deal with a serial device that doesn't send any feedback. But I know they exist so hopefully your one is not one of these.

Cheers