logic - vb.net powerscan m8300 write to display -

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i trying write data(prompts) m8300 barcode scanner, having few issues. device serial , getting data it, using backgroundworker pull data me. however, can't seem able find way write data device. know device capable of doing says in manual. however, have following code:

private sub button5_click(sender system.object, e system.eventargs) _ handles button5.click      serialport1.write(chr(18) & chr(27) & "[2jsay name" & vbcr)  end sub

however, not work consistently.

has had experience writing similar device?

i must admit, totally forgot one. turns out chr 18 , 27 command params device; 2 needed commands, wasn't needed.

the issue having communication protocol on device, though directions required 2-way communication enabled on it, turns out needed 1-way communication. found out when reset device factory settings , sent out data , worked without issues.

goes show you, not believe in manuals.


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