The device is made by DIP (dipinc.com)and the part# is PFB366. I am using a PC with a Synergetics CIF30 Profibus master card and Sycon configuration software. I currently have no control software. All I want to do is be able to send the barcode reader a single character to either start a trigger or stop a trigger. Any ideas? I can use the I/O monitor to view the reads succesfully but I cant get what I write to the device to transmit to the reader.