User manual

6 Detailed descriptions of I/O modules | Serial communication module UR20-1COM-232-485-422
386 1432790000/08/12.2015Manual u-remote
4
2
4
3
1
2
4
3
1
4
2
4
3
1
2
4
3
1
4
2
4
3
1
2
4
3
1
GND COM
24VDC
GND
+V
GND COM
5VDC
5V
GND
GND COM
GND
24V
GND COM
GND
+V
GND COM
GND
Data
Data Data
Serial
device
Serial
device
Serial
device
Plug
1 or 3
Plug
1 or 3
Plug
1 or 3
1
2 3
Voltage supply
Connection variants for the voltage supply
8 Device with independent voltage supply
9 Supply with +24VDC
10 Supply with +5VDC
Pin assignment of the Sub-D plug (RS232 only)
1 12
13 25
1 5
6 9
UR20 Name Signal UR20
direction
Cable
colour
1)
RS232
Pin
Assignment of the 9-pole plug (male)
1.1 RXD Receive data in brown 2
1.2 TXD Transmit data out green 3
1.3 RTS Request to send out blue 7
1.4 CTS Clear to send in red 8
4.2 GND Signal Ground grey 5
Assignment of the 25-pole plug (male)
1.1 RXD Receive data in green 3
1.2 TXD Transmit data out brown 2
1.3 RTS Request to send out yellow 4
1.4 CTS Clear to send in grey 5
4.2 GND Signal Ground blue 7
1) Colour coding for Weidmüller cables