Opticon UNIVERSAL MENU BOOK, Command Manual

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OPTICON Universal menu book
U10
2.1.2. Data, parity and stop bits
The data characters may be transferred in one
of the following formats:
A parity bit may be added to every character so
that the total number of 1's in the data bits,
together with the parity bit, is odd for odd parity
or even for even parity. See figure 2.03.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
START
START
START
START
START
START
START
START
7 Bit Data
7 Bit Data
7 Bit Data
7 Bit Data
8 Bit Data
8 Bit Data
8 Bit Data
8 Bit Data
2 STOP
STOP
PARITY STOP
PARITY
2 STOP
STOP
2 STOP
PARITY STOP
PARITY
2 STOP
Fig. 2.03. Data, parity, stop bits
SET
_ZZ_
7 data bits
L0
_L0_
8 data bits
L1
_L1_
No parity
L2
_L2_
Even parity
L3
_L3_
Odd parity
L4
_L4_
1 stop bit
L5
_L5_
2 stop bits
L6
_L6_
END
_ZZ_