DHES

I ordered a new cash drawer with a serial interface. I hooked it up and on the first try it opened with the following code in an Excel VB program initiated by a command button. The drawer is an MMF .... Open "COM1:9600,n,8,1" For Output as #10 Print #10, "A" Close #10 You mentioned issues with seria...

Oh well...I thought the actual 'signal' sent via a receipt printer may be the same 'electrically' as one sent from a modem. I guess not ... Now my choices are either to exchange the cash drawer - or buy a receipt printer. A classic example of a software person trying to make hardware choices.

I am trying to open a cash drawer attached directly to my computer via a modem. The drawer uses Epson codes and I am testing sending the codes to COM1 via an Excel command button and VB script. The code is basically three lines: 1. Open comm port 2. Use Print command to send codes with CHR 3. Close ...