39
Connections
The connections between the CQM1 and a personal computer are illustrated
below as an example.
1
2
3
4
5
6
FG
SD
RD
RS
CS
–
–
–
SG
7
8
9
1
2
3
4
5
6
7
8
9
SD
RD
RS
CS
DSR
SG
–
9
DTR
CQM1
Personal Computer
Signal
Pin
No.
Signal
Pin
No.
Shielded cable
–
Applicable Connectors
The following connectors are applicable. One plug and one hood are included
with the CPU Unit.
Plug:
XM2A-0901 (OMRON) or equivalent
Hood:
XM2S-0901 (OMRON) or equivalent
Port Specifications
Item
Specification
Communications method
Half duplex
Sync
Start-stop
Baud rate
1,200, 2,400, 4,800, 9,600, or 19,200 bps
Transmission method
Point to point
Transmission distance
15 m max.
Interface
EIA RS-232C
One-to-one Link Connections The RS-232C port on the CQM1-CPU21-E and CQM1-CPU4
j
-EV1 can be
connected to the same port on another CQM1 PC to create a data link. Wire the
cable as shown in the diagram below.
1
2
3
4
5
6
FG
SD
RD
RS
CS
–
–
–
SG
7
8
9
1
2
3
4
5
6
7
8
9
FG
SD
RD
RS
CS
–
–
SG
9
CQM1
CQM1
Signal
Abb.
Pin
No.
Signal
Abb.
Pin
No.
–
Ground the FG terminals of CQM1 Units at a resistance of less than 100
Ω
.
Wiring and Connections
Section 2-5