Hitachi EH-150 Series, Applications Manual

Page: 18 / 194

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 )