Omron NB7W-TW**B series User Manual

5-9
5 Modbus Connection
NB-series Programmable Terminals Host Connection Manual (V108)
5-5 Cable Fabrication
5
5-5 Cable Fabrication
 RS232 Communication Cable
 RS422 Communication Cable
 RS485 Communication Cable (PLC)
 RS485 Communication Cable (E5CC/E5EC)
 RS485 Communication Cable (3G3MX2)
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).
PT (COM1/COM2)
Pin No.
2
3
9
Signal
SD
RD
SG
D-Sub
9Pin
(Female)
PLC
Pin No.
3
2
9
Signal
RXD
TXD
GND
D-Sub
9Pin
PT (COM2)
Pin No.
1
6
7
Signa l
SDB+
RDB+
SDA-
D-Sub
9Pin
(Female)
Communication expansion board
or special communication adaptor
Signal
RDB+
SDB+
RDA-
RS-422
connector
8
9
RDA-
SG
SDA-
SG
PT (COM2)
Pin No.
6
8
9
Signa l
RDB+
RDA-
SG
D-Sub
9Pin
(Female)
PLC
Signal
SDB+/RDB+
SDA-/RDA-
SG
RS-485
connector
PT (COM2)
Pin No.
6
8
Signal
RDB+
RDA-
D-Sub
9Pin
(Female)
E5CC/E5EC
Signal
B(+)
A(-)
RS-485
connector
PT (COM2)
Pin No.
6
8
Signal
RDB+
RDA-
D-Sub
9Pin
(Female)
3G3MX2
Signal
RS+
RS-
RS-485
connector

Omron NB7W-TW**B series Specifications

General

Brand	Omron
Model	NB7W-TW**B series
Category	Touch terminals
Language	English