40 Xenon/Granit User Guide
RS232 Timeout
When using Flow Control with Timeout, you must program the length of the delay
you want to wait for CTS from the host. Set the length (in milliseconds) for a time-
out by scanning the bar code below, then setting the timeout (from 1-5100 milli-
seconds) by scanning digits from the Programming Chart, beginning on page 353,
then scanning Save.
XON/XOFF
Standard ASCII control characters can be used to tell the scanner to start sending
data (XON/XOFF On) or to stop sending data (XON/XOFF Off). When the host
sends the XOFF character (DC3, hex 13) to the scanner, data transmission stops.
To resume transmission, the host sends the XON character (DC1, hex 11). Data
transmission continues where it left off when XOFF was sent. Default = XON/XOFF
Off.
ACK/NAK
After transmitting data, the scanner waits for an ACK character (hex 06) or a NAK
character (hex 15) response from the host. If ACK is received, the communications
cycle is completed and the scanner looks for more bar codes. If NAK is received, the
Two-Direction Flow Control
Flow Control with Timeout
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