Transmission Specifications - Hitachi IJ RX2 Technical Manual

5.2.2 Transmission Specifications

(1) Communication method
(2) Startup method
(3) Synchronization method
(4) Transmission method
(5) Baud rate
(6) Codes transmitted
(7) Data format
Format
F (default)
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 b
0 1
Formats C and D
Start b b
0 1
Formats E
Start b b
0 1
Formats F
Start b b
0 1
Formats G and H
Start b b
0 1
Formats I and J
Start b b
0 1
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
: Half duplex
: Started up by host
: Asynchronous
: Bit serial transmission
: 150, 300, 600, 1,200, 2,400, 4,800, 9,600, 19,200, 38,400,
57,600, 115,200(bps)
: Alphanumerical characters, symbols, dedicated characters,
user pattern characters, and punctuation characters
: Formats A through J are selectable (see the table below).
No other formats can be chosen.
Data format table
Item Start bit
(bits)
A 1
B 1
C 1
D 1
E 1
1
G 1
H 1
I 1
J 1
b b b
2 3
b b b
2 3
b b b
2 3
b b b
2 3
b b b
2 3
b b b
2 3
Data length Parity bit
(bits) (bits)
7 1 (even)
7 1 (odd)
7 1 (even)
7 1 (odd)
8 None
8 None
8 1 (even)
8 1 (odd)
8 1 (even)
8 1 (odd)
b b Parity
4 5 6
b b Parity
4 5 6
b b b
4 5 6
b b b
4 5 6
b b b
4 5 6
b b b
4 5 6
●Setting Communication Environment 5-5
Stop bits
(bits)
2
2
1
1
2
1
1
1
2
2
Stop Stop
Stop
Stop Stop
7
Stop
7
Parity Stop
7
Parity Stop Stop
7