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RS-232C Interface Connection
Solderless I/O Terminal
3-6
RS-232C Interface Connection
Assembly and Connection of Communications Connector
ID Controller side
Plug
XM2A-0901*
(supplied as an
accessory)
(OMRON)
20
The I/O terminals employ M3.5 screws. When using solderless terminals, use
the following:
7.0 max.
(M3.5)
7.0 max.
Keep the tightening torque to within 8 kg-cm.
Signal name
Ground
Signal ground
Send data
Receive data
Request to send
Clear to send
ID Controller
GR
SG
SD
RD
RS
CS
(Shielded cable)
Note
1. Ground the shielded cable at either the ID Controller side or host computer
side to prevent malfunctioning. The above left figure shows an example of
shielded cable grounding at the ID Controller side.
2. Internally short-circuit pins 4 (RS) and 5 (CS).
Cable
Recommended cable
5PX28AWG, 7 dia.
Hood
XM2S-0911*
(supplied as an
accessory)
(OMRON)
*Use the accessory connector as the communications connector. Separately
prepare the connecting cable and the connector of the host computer. The con-
nector of the ID Controller is made by OMRON and takes countermeasures
against EMI.
Abbr.
I/O
Pin no.
GR
–––
1
SG
–––
9
SD
Output
2
RD
Input
3
RS
Output
4
CS
Input
5
Host computer
FG
SG
SD
RD
RS
CS
Section
3-6
5
1
9
6
Host computer side
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