Olympus AU2700 - Manual (Page 5)

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(2.1) Format of Transmission
Item Contents
Transmission
line RS-232C
Synchronization Synchronization
Data transmission
mode Half-Duplex
Bit/sec 4800bps, 9600bps
Configuration
start bit 1 bit
data bit 7 or 8 bit
parity bit none, odd or even
stop bit 1 or 2 bit
total 9-12 bit
These can be selected by [PARAMETER] [ONLINE] [PROTOCOL]
menu.
Form of Class A Transmission are conducted from the sender to
Transmission the receiver in a certain time of interval.
Class B Transmission are conducted by confirming with ACK
(receipt acknowledged)or NAK (not acknowledged)
between the sender and the receiver.
Use channel 1 channel
Retry Class A: None
Class B: 0-3 This can be selected by [PARAMETER] [ONLINE]
[PROTOCOL]menu.
(2.2) Transmission code
Item Contents Limit of value
Data code 7 bit code ASCII CODE 20H-7EH
These can be
selected by
[PARAMETER]
[ONLINE]
[PROTOCOL]
menu. 8 bit code
1 byte code 20H-7EH
A1H-DFH
Control code Start code/terminate code 01H-1FH
ACK 06H
NAK 15H
BCC 00H-FFH