PSC PowerScan Scanner User Manual


 
Programming Guide 143
Appendix A: Additional Information
RS-232 Host Commands
The RS-232 interface will accept commands from the host. Available
commands are:
Disable Scanner
Enable Scanner
Reset Scanner
Beep Good Read Tone
Force Good Read
Xon
Xoff
Disable Scanner (ASCII D) - places the scanner in an operational
mode in which the scanner does not accept bar code data input from
the scan optics. NOTE: The scanner will complete any message trans-
mission in progress to the host.
Enable Scanner (ASCII E) - places the scanner in an operational
mode in which the scanner will accept label data input from the scan
optics.
Reset Scanner (ASCII R) - performs a scanner reset operation. Any
bar code data the scanner may be holding in buffers is discarded.
NOTE: After reset is executed, additional host commands may be
ignored for 30 seconds.
Beep Good Read Tone (ASCII B) - causes the beeper to sound one
good read tone if the beeper is enabled (see the section in this manual
titled, General Features for more information about setting the scan-
ners beeper functions).
Force Good Read Tone (Hex 01) - causes the beeper to sound one
good read tone even if the beeper is configured as disabled.
Xoff (Hex 11) - suspends current data transmission from the scanner
to the host or prevents future data transmissions from occurring.
Xon (Hex 13) - permits resumption of data transmission from the
scanner to the host that was previously suspended via the Xoff
command.