Cable Fabrication - Omron NB3Q-TW**B series Connection Manual

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Cable Fabrication

 RS232 Communication Cable
D-Sub
9Pin
(Female)
 RS422 Communication Cable
D-Sub
9Pin
(Female)
 RS485 Communication Cable (PLC)
D-Sub
9Pin
(Female)
 RS485 Communication Cable (E5CC/E5EC)
D-Sub
9Pin
(Female)
 RS485 Communication Cable (3G3MX2)
D-Sub
9Pin
(Female)
Precautions for Correct Use Precautions for Correct Use
For RS422/485, a terminating resistance short circuit is required. A short-circuit may depend on
an NB model. Thus, please refer to 1-2 Part Specifications in the NB-series Programmable Ter-
minals Setup Manual (Cat. No. V107).
 Ethernet Communication Cable
Use Twisted Pair Cable to connect. Refer to Ethernet communication specifications in A-1-3 Com-
munication Specifications in the NB-series Programmable Terminals Setup Manual (Cat. No. V107).
NB-series Programmable Terminals Host Connection Manual (V108)
PT (COM1/COM2)
Signal Pin No.
SD 2
RD 3
SG 9
PT (COM2)
Signa l Pin No.
SDB+ 1
RDB+ 6
SDA- 7
RDA- 8
SG 9
PT (COM2)
Signa l Pin No.
RDB+ 6
RDA- 8
SG 9
PT (COM2)
Signal Pin No.
RDB+ 6
RDA- 8
PT (COM2)
Signal Pin No.
RDB+ 6
RDA- 8
5 Modbus Connection
PLC
Pin No. Signal
D-Sub
3 RXD
9Pin
2 TXD
9 GND
Communication expansion board
or special communication adaptor
Signal
RDB+
SDB+
RS-422
RDA- connector
SDA-
SG
PLC
Signal
SDB+/RDB+
RS-485
SDA-/RDA- connector
SG
E5CC/E5EC
Signal
RS-485
B(+)
connector
A(-)
3G3MX2
Signal
RS-485
RS+
connector
RS-
5
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