WOOSIM PORTI-W40, Operator'S Manual

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76
7
7
.
.
I
I
n
n
t
t
r
r
o
o
d
d
u
u
c
c
t
t
i
i
o
o
n
n
o
o
f
f
P
P
r
r
o
o
t
t
o
o
c
c
o
o
l
l
I
I
r
r
D
D
A
A
(
(
o
o
r
r
B
B
l
l
u
u
e
e
t
t
o
o
o
o
t
t
h
h
)
)
7
7
.
.
1
1
.
.
F
F
r
r
a
a
m
m
e
e
S
S
t
t
r
r
u
u
c
c
t
t
u
u
r
r
e
e
S S O O F F
(Start Of Frame)
T T O O F F
(Type Of Frame)
D D A A T T A A
E E O O F F
(End Of Frame)
1 Byte 1 Byte Variable 1 Byte
- Type of frame
T
T
y
y
p
p
e
e
o
o
f
f
f
f
r
r
a
a
m
m
e
e
V
V
a
a
l
l
u
u
e
e
D
D
A
A
T
T
A
A
F F i i e e l l d d
ACK 0x06 X
NACK
0x15 X
ENQ 0x05 X
PRINT Data ‘D’ (0x44) O
Response of Printer Status ‘S’ (0x53) O
Inquiry of Printer Status ‘Q’ (0x51) X
EOT 0x04 X
ETX 0x03 X
™
During transmission, if C0H, C1H, and/or 7DH are contained in data field, 7DH
should be inserted before the data and the data should be XORed with 20H and sent.
™
During reception, if 7DH is encountered, 7DH should be ignored and the next byte
should be XORed with 20H and stored.