Hitachi PH, Инструкция по эксплуатации

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6-4 ● Setting Communication Environment
6.2.2 Transmission Specifications
(1) Communication method: Half duplex
(2) Startup method: Started up by host
(3) Synchronization method: Asynchronous
(4) Transmission method: Bit serial transmission
(5) Baud rate: 150, 300, 600, 1,200, 2,400, 4,800, 9,600, 19,200, 38,400(bps)
(6) Codes transmitted: Alphanumerical characters, symbols, dedicated
characters, user pattern characters, and punctuation characters
(7) Data format: Formats A through J are selectable (see the table below).
No other formats can be chosen.
Data format table
Item Start bit Data length Parity bit Stop bits
Format (bits) (bits) (bits) (bits)
A 1 7 1 (even) 2
B 1 7 1 (odd) 2
C 1 7 1 (even) 1
D 1 7 1 (odd) 1
E 1 8 None 2
F (default) 1 8 None 1
G 1 8 1 (even) 1
H 1 8 1 (odd) 1
I 1 8 1 (even) 2
J 1 8 1 (odd) 2
Selecting a data length of 7 bits allows you to transmit alphanumerical characters and
symbols but inhibits you from transmitting punctuation characters and using 2-byte
codes to send dedicated characters and user pattern characters.
(8) Bit configuration
Formats A and B
Start b
0
b
1
b
2
b
3
b
4
b
5
b
6
Parity Stop Stop
Formats C and D
Start b
0
b
1
b
2
b
3
b
4
b
5
b
6
Parity Stop
Format E
Start b
0
b
1
b
2
b
3
b
4
b
5
b
6
b
7
Stop Stop
Format F
Start b
0
b
1
b
2
b
3
b
4
b
5
b
6
b
7
Stop
Formats G and H
Start b
0
b
1
b
2
b
3
b
4
b
5
b
6
b
7
Parity Stop
Formats I and J
Start b
0
b
1
b
2
b
3
b
4
b
5
b
6
b
7
Parity Stop Stop
Order of code transmission: Transmission occurs beginning with the least significant
bit (b0).
(9) Error control
● Vertical parity error (detection on an individual character basis)
● Overrun error
● Framing error