I set up a basic stamp to run the LCD and it works fine. With the stamp I can tell it to output ascii, dec etc.. and it works fine.

I duplicated the same problem by always outputing ascii from the stamp so this proves that the controller that I WAS tring to use allways outputs in ascii no matter ...

yes it is, sending text messages works perfect. Just not sure how to send the commands to clear screen etc..

If I send a \00\fe I get a solid square block. In the ascii table i have, a square block is the extended char for 254. I don't know how to make the
display see it as a pre fix to a command ...

a 254 sends a solid square, sorry but the other pixals was rememts.

9600

It is using RS232

I have a LCD 4041 and I am having a few problems interfacing with a Allen Bradley micro logic PLC.

First I need the whole command set to make sure I am using the right commands.

I can send text to the screen with no problems at all but I can not get the display commands to work. The first one I ...