I bought these monitors to replace sharps that were already in service. These monitors have a different RS232 code structure than the ones in place. So the Sharp module I was using won't work.

At the root of what happened is they went to a four-digit parameter so instead of VOLM20\x0D, it's now VOLM? 20\x0D. With perhaps a second return VOLM? 20\x0D\x0A. doesn't seem to matter much either way.

The only guidance sharp has starts on page 51 of this.

First does anyone know of a module for these that will run on a 2 series. Didn't try every sharp module at marketplace, but the ones I did do not work.

I have written simple plus code that appears to create the proper command for raising and lowering volume (there are no build in volume up or volume down commands).

When I run the program the "Volume_Code" string gets what appears to be the correct code. And that singal (to_monitor$) is being sent directly to the TX input of the com port. But nothing happens. No feed back from monitor.?

If I then open the "to_monitor$" signal in debugger copy and paste the command into the stimulus and send it I get feedback, but it is an ERR. When I send it a second time it works.

I'm thinking it's some kind of process logic thing, but I have tried that.

Here is my code

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DIGITAL_INPUT vol_up,vol_down;

STRING_OUTPUT Volume_Code;

INTEGER vol;

PUSH vol_up{

}

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Thanks for any assistance.

Have a Great Day,