Hitachi EH-150 Series - Communication Specification

Chapter 2 Specification
2 - 2
2.2 Communication specification
Table 2.2 Communication specification
ITEM
SPECIFICATION
Port 1
*1
Port 2
*2
Interface
Conforms to
RS-232C
Conforms to
RS-422 / 485
Conforms to
RS-232C
Conforms to
RS-422 / 485
Transmission speed
300, 600, 1,200, 2,400, 4,800, 9,600, 19,200, 38,400, 57,600 bps
Startup method
One-sided startup using the host side command
Transmission method
Serial transmission ( bit serial transmission )
Transmission code
ASCII, binary
Transmission format
configuration
Input buffer
1,024 byte/Port
Output buffer
1,024 byte/Port
Error control
Vertical parity check, framing check, overrun check,
Input buffer full check, Message error check, Timeout error check
Connection mode
1:1
1:N
(Max.32 units.)
1:1
1:N
(Max.32 units.)
Max cable length
15 m
500 m
15 m
500 m
Body side connector
TM5RSB-1616
8-pin modular connector
SL3.5/6/90F
Pitch 3.5, 6-poles
with screw
*1 Communication interface of Port 1 is selectable in hardware Rev. 10 or newer. The hardware before Rev. 10 supports
RS-232C only. Communication interface can be selected either a RS-232C port or RS-422/485 port by DIP Sw.
RS-422 and RS-485 are switched by wiring.
*2 Port 2 chooses either a RS-232C port or RS-422/485 port by DIP Sw. RS-422 and RS-485 are switched by wiring.
2
0
2
1
2
2
2
3
2
4
2
5
2
6
2
7
Transmission data 7 or 8 bits
a
b
c
a: Start bit
b: Parity bit (Even, Odd, None)
c: Stop bit ( 1 or 2 )