Rs232 Timeout; Xon/Xoff; Ack/Nak; Scanner To Bioptic Communication - Honeywell Xenon 1900 User Manual

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 timeout by scanning the bar code below, then setting the timeout (from 1-5100 millisec-
onds) by scanning digits from the inside back cover, 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 .
XON/XOFF On

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 last set of bar code data is retransmitted and the scanner waits for ACK/NAK again. Turn on the ACK/NAK
protocol by scanning the ACK/NAK On bar code below. To turn off the protocol, scan ACK/NAK Off. Default = ACK/NAK
Off .
ACK/NAK On

Scanner to Bioptic Communication

The following settings are used to set up communication between Honeywell scanners and bioptic scanners.
Note: The scanner's baud rate must be set to 38400 and the RS232 timeout must be set to 3000 in order to communicate with
a bioptic scanner. See "RS232 Modifiers" on page 2-17, and
RS232 Timeout
RS232 Timeout
* XON/XOFF Off
* ACK/NAK Off
on page 2-21 for further information.
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