ASCII Driver S5-95U, Second Serial Interface
Parity (PRTY)
You can choose from five types of parity.
Table 4-5 Meaning of the Parity
Default in
DB1:
Parity Meaning
EVEN Even parity
The parity bit is set in such a way that the sum of the data bits
(inclusive of parity bit) is even at signal state ”1”.
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X
ODD Odd parity
The parity bit is set in such a way that the sum of the data bits with
signal state ”1” (inclusive of parity bit) is odd.
MARK The parity bit always has signal state ”1”.
NONE No parity check
The signal state of the parity bit is meaningless. The parity is not
checked when received; however, it is always set to ”1” during
transmission.
SPACE The parity bit always has signal state ”0”.
Data format and character frame (DF)
The characters are transmitted between the S5-95U and the communication partner in a 10-bit
and/or 11-bit character frame. Within these character frames, you can select either 7 or 8 data bits.
Table 4-6 Character Frames and Order of the Bits on the Line for the ASCII Driver
(Depending on the Data Format)
* cf. Table 4-2
Arguments of the
DB1 Parameter
”DF” (Data
Format)
Charac-
ter
Frame
Parity
E/O/M/S/N *1 11 bits
E/O/M/S/N *
Setting
irrelevant
2 11 bits Setting
irrelevant
3 10 bits
4 10 bits
0 11 bits E/O/M/S/N *
8
as data format 1
E/O/M/S/N *11 bits
5 Setting
irrelevant
10 bits
7
as data format 0
E/O/M/S/N *11 bits
Default
in DB1:
X
Sequence and Number of Bits on
the Line
Parity
Bit
Stop
Bit
Start
Bit
Data
Bits
1 7 21
1 8 11
1 8 2-
1 7 2-
1 7 11
1 8 1-
1 7 21
1 8 11
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4-14
EWA 4NEB 812 6095-02
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