Omron V640 User Manual page 32

SECTION 2
Installation and Connections/Wiring
■ SECS port
The method for wiring for communications with a host device via the SECS port is explained here.
CIDRW Controller
• Connector
The SECS port on the Controller is a D-SUB 9-pin connector. The pin arrangement is shown below.
Pin No. Signal name
1 —
2 Receive data
3 Send data
4 —
5 Signal ground
6 —
7 Request send
8 —
9 —
Recommended model
Cable
Connector
CIDRW System
28
User's Manual
To the SECS port
RS-232C
MAINTENANNCE
SECS ID
Symbol Signal direction
NC —
RD Input
SD Output
— Output
SG —
— Input
RS Input
NC —
NC —
Manufacturer
Hitachi Cable
Socket OMRON
Hood
Host
To the RS-232 port
1 2 3 4 5
The connector rim has electrical continuity with the
GR (frame ground) in the 24 VDC power supply ter-
6 7 8 9
minals.
Remarks
Not connected
Always OFF
Use in the open status.
Always ON during normal operation
Not connected
Not connected
Model
CO-MA-VV-SB 5PX28AWG
XM2D-0901
XM2S-0913