40
Using the Support Software Port Section 2-3
• A 1:1 or 1:N connection is used. When a 1:N connection is used, a maxi-
mum of 32 nodes including the host computer can be connected.
• Use AWG24 (cross-sectional area: 0.205 mm
2
) to AWG14 (cross-sec-
tional area: 2.081 mm
2
) shielded twisted-pair cable.
2-3 Using the Support Software Port
Use the communications port for Support Software to connect the personal
computer to the Digital Controller when using EST2-2C-MV4 CX-Thermo or a
version of CX-Thermo higher than 4.00, or other Support Software. The E58-
CIFQ1 USB-Serial Conversion Cable is required to make the connection.
For information concerning the models that can be used with CX-Thermo,
contact your OMRON sales representative.
Procedure Use the following procedure to connect the Digital Controller to the personal
computer using the USB-Serial Conversion Cable. The USB-Serial Conver-
sion Cable is used to communicate with the COM port of the personal com-
puter. To perform communications using USB-Serial Conversion Cable, set
the communications port (COM port) number to be used for the software to
the COM port assigned to the Cable.
1,2,3... 1. Turn ON the power to the Digital Controller.
Note If the Cable is connected when the power to the Digital Controller
is OFF, power will be supplied from the personal computer and im-
pose a load on the internal circuits of the Digital Controller.
2. Connect the Cable.
Connect the personal computer’s USB port with the Support Software port
on the Digital Controller using the Cable.
22
21
12
SDA
SDB
RDA
11 RDB
13 SG
RS-422
Shielded cable
RDA
RDB
SDA
SDB
SG
FG
RS-422
Host computer
22
21
12
SDA
SDB
RDA
11 RDB
13 SG
RS-422
Two Terminators
(240 Ω, 1/2 W)
E5AN/EN-H (No.1)
E5AN/EN-H (No.31)
No.
No.
Cross-sectional area of
conductor
AWG24: 0.205 mm
2
AWG14: 2.081 mm
2
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