3820 UG.book - Finn-ID

The commands to which the scanner responds are listed on page 2-13. The is a 1B in hex. A typical command string is y x, where “y” is theapplication work group number, “ x” is the escape command, and thecomma is the terminator.Commands may be strung together to create custom response sequences. Anexample of a command string is listed below.0456,The above example will make a scanner in application work group zero beep low,medium, high.Once Host ACK is enabled, the system works as follows:• The scanner reads a code and sends data to the base/host system. Noaudible or visual indication is emitted until you receive an escape command.The scanner read illumination goes out upon a successful read.• Scanner is suspended until 1) a valid escape string is received from the hostsystem (via the base) or 2) the scanner “times out.”• Once condition 1 or 2 above has been met, the scanner is ready to scanagain, and the process repeats.Time out is indicated by three rapid beeps at the same pitch. A time out occursif the source scanner does not receive a valid escape command in 10 seconds.If a time out occurs, the operator should check the host system to understandwhy a response to the scanner was not received.Host ACK EnableHost ACK On* Host ACK Off2 - 12 2020/3820 User’s Guide