Omron NB3Q-TW00B Startup Manual Manual page 30

1 NB Overview
Precaution for Cable Fabrication
The COM 2 ports included in this manual and marked by cable manufacturers are intended for the PT
of NB5Q/NB7W/NB10W-TW
with the COM 1 port of NB3Q-TW
connection.
Serial Port COM2
• NB5Q/NB7W/NB10W-TW
Serial port COM2 is a 9-pin D-type socket port. This port supports RS-232C/RS-485/RS-422A
communication function.
The pins are defined as follows:
USB HOST
NB -TW01B is equipped with USB HOST port, which is USB A-type port. Through this port, USB
memory can be connected to perform uploading, downloading, project operation and storage of related
data. And its pins are defined as follows:
1 2 3 4
Precautions for Safe Use
When connecting the equipment with the USB HOST connector, make sure the supply
equipment's current capacity is below 150mA before using it. The DC+5V voltage output of the
NB Unit is +5V±5%, and the maximum current is 150mA.
1-8
B models, therefore when communication connection is carried out
B, please refer to the pin definitions in this section prior to
B
Pins Signals I/O
1 SDB+ I/O
2 SD O
3 RD I
4 Terminal R1 -
5 Terminal R2 -
6 RDB+ I/O
7 SDA- I/O
8 RDA- I/O
9 SG -
Pins Signals
1 Vbus
2 D-
3 D+
4 GND
NB-series Programmable Terminals Startup Guide Manual(V109)
Functions
RS-232C RS-485
- -
Sending data -
Receiving data -
- Terminal resistor
- Terminal resistor
- Send/Receive
data(+)
- -
- Send/Receive
data(-)
Signal ground
Functions
USB +5V power supply output
(Max. current: 150mA)
Data -
Data +
USB power supply ground
RS-422A
Sending data(+)
-
-
Receiving
data(+)
Sending data(-)
Receiving
data(-)