Omron V640-HS61, Руководство пользователя, Страница: 50 / 174

48
SE
CTION 2
Con
n
ec
tions
a
nd Wiring
CIDRW System
User’s Manual
SECTION 2
Installation and Connections/Wiring
• Wiring for Connection to a PC/AT Computer
If the CS function is to be used at the PC/AT computer side, a return wire is required.
RS signal control method at the host device
In a 1:N system using Link Units, the RS signals generated from the host device by normal control must be input as CS
signals. Turn the RS signals OFF within 15 ms after the completion of data transmission. Correct communications will
not be possible without this control.
Link Unit
V700-L11
D-SUB, 9-pin
Socket type #4-40
Name Pin No.
NC 1
RD 2
SD 3
NC 4
SG 5
NC 6
RS 7
CS 8
NC 9
PC/AT Computer
D-SUB, 9-pin
Socket type #4-40
Pin No. Name
1 NC
2 RD
3 SD
4 NC
5 SG
6 NC
7 RS
8 CS
9 NC
Ground shielded wires either at the CIDRW Controller side or at the
PC/AT computer side.
SD at host device
RS at host device
ON only during data transmission from the host device
Within 15 ms