UR23/42/48 USB-Serial Adapter
Hardware Manual
1. Hardware Introduction
2. DIP Switch Introduction
3. Connecting System
4. Pin Assignments
Hardware Introduction:
The UR-series adapter is a tool to help users link via PC USB port. Either the
USB-to-PLC (RS232/422/485) or USB-to-Serial port system can use the UR-
adapter to link with.
The following description is the UR- adapter hardware introduction:
All-in-One Type: UR23-PCM9A
DIP Switches Introduction:
The following table is the DIP switches definition of the UR- adapter:
Connecting System:
If you want to use the UR- adapter to link with other devices, there are several
samples of connecting system showing below for your reference:
<1> All-in-One Type:
a. PC(USB) to COM2 (RS232/422/485): As a PLC programming cable.
b. PC(USB) to standard serial port COM1(RS232C):
(1) Reserve as an USB-to-Serial Adapter.
(2) Reserve as an HMI download cable (For GD17 & PWS using)
c. PC(COM1) to COM2 (RS232/422/485) PLC: As a PLC monitoring
cable.
d. PC(USB) to PLC(COM2) and PC(COM1) as a command catching cable
--- For R.D. engineer debug using.
Pin Assignments: (For All-in-one Type)
Serial Communication Port1 (COM1 9pin Male)
COM 1 is a serial port that supports RS-232 operation.
The pin assignments of the port are listed in the following table:
Pin Function
1
2 RS-232 RXD/ RS-232 TXD; jumper selectable
3 RS-232 TXD/ RS-232 RXD; jumper selectable
4
5 Signal Ground
6
7 RS-232 RTS/ RS-232 CTS; jumper selectable
8 RS-232 CTS/ RS-232 RTS; jumper selectable
9
Serial Communication Port2 (COM2 25pin Male)
COM2 is a serial port that supports RS232C, RS-422, and RS-485 operation.
The pin assignments of the port are listed in the following table:
Pin Function Pin Function
1 Chassis ground 14 RS-422 TXD+ and RS-485 TXD/RXD+
2 RS-232 TXD 15 RS-422 TXD- and RS-485 TXD/RXD-
3 RS-232 RXD 16 RS-422 RXD+
4 RS-232 RTS 17 RS-422 RXD-
5 RS-232 CTS 18 (no function)
6 Function as DSR 19 (no function)
7 Signal ground 20 Function as DTR
8 Function as CD 21 (no function)
9 (no function) 22 Function as RI
10 (no function) 23 RS-422 RTS+
11 (no function) 24 RS-422 RTS-
12 RS-422 CTS+ 25 5V input jumper selectable
13 RS-422 CTS-