PSC LazerData Series 9000E, Installation And Operation Manual

Page: 45 / 104

LOCAL FORMATTING
5-9
specified as a character or string of characters. Any two character string
can be specified but normally ASCII control characters are used.
The default character string, SI (Shift In) has been programmed. It may
be changed by the user if desired. When these characters are used they
must be bracketed by < >.
HOST STOP SCAN CHARACTER - The host computer character to end
the gate period can also be specified as a character or string of
characters. The default string, <ETX> has been programmed. It may
be changed to any two character ASCII string if desired.
ACK/NAK TIMEOUT VALUE - If ACK/NAK software protocol is selected,
each time a label is read it is sent to the Host for confirmation. If the
host answers ACK (CTRL-F), the scanner can then immediately read the
next label. If the host answers NAK (CTRL-U) or gives no response in
the allotted time then the scanner will resend the label. The scanner will
resend the label to the host up to 5 times.
DATA CHANGE TIMEOUT VALUE - The data change mode can be
modified to recognize the same code again after a set period of time. In
Data Change timeout, once the label leaves the field, a timer is started.
If at the end of the set time the same bar code is presented to the
scanner again, it will be considered a new code. Values specified can
range from 0 to 30000 msec.
GATE INPUT DEBOUNCE TIME - If a switch or relay contact is used for
a gate signal, a debounce time may be necessary. Times will have to
be determined experimentally. Once a gate signal is detected, it must
be present for the set time before it is considered valid. Debounce time
may be specified from 1 to 999 msec.
GATE TIMEOUT VALUE - The Gate Timeout Value is used to simulate
a close gate signal. When the time set has expired the gate will close
and either transmit the bar code data or a No Read. The timer will
ignore all activity on the Gate line until it has timed out. When a new
open gate signal happens the timer starts counting down again.
COMPARE MODE - Activates the Compare String mode. (See Page 8 -
Compare Strings) for information on compare string options.