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Programming the Scanner
3-25
Serial Interface Control
♦ Baud Rate & Data Frame Setting ♦
PROGRAM END(Exit)
Family Code Selection Parameter Selection Option Code
Handshaking Protocol
None (free running mode)
RTS/CTS (hardware handshaking)
ACK/NAK (software handshaking)
Xon/Xoff (software handshaking)
0
1
2
3
Baud Rate (BPS)
38.4K BPS
19.2K BPS
9600 BPS
4800 BPS
2400 BPS
1200 BPS
600 BPS
300 BPS
0
1
2
3
4
5
6
7
Data Frame
8, None, 1
8, Odd, 1
8, Even, 1
8, Space, 1
8, Mark, 1
8, None, 2
7, Odd, 1
7, Even, 1
7, Space, 1
7, Mark, 1
7, None, 2
7, Odd, 2
7, Even, 2
7, Space, 2
7, Mark, 2
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
Time Out Control
None
200 mseconds
500 mseconds
1 second
2 seconds
5 seconds
User defined value (seconds)
0
1
2
3
4
5
6, (2 digits)
FACTORY DEFAULT
When the
RTS/CTS Hardware Handshaking
option is selected, the
RTS
(request to send) and
CTS
(clear to send) signals will be issued before normal data
communication. This option is very helpful to ensure the reliability of data communication.
When the
ACK/NAK Software Handshaking
option is selected, the scanner waits for an
ACK
(acknowledge) or
NAK
(not acknowledge) from the host computer
after each data transmission. If the NAK is received, the scanner will re-send the data until receiving ACK.
The
Time Out Control
is a pre-defined delay time for the scanner to wait for handshaking, acknowledgment, or non-acknowledgment from the host computer.