User manual

6 Detailed descriptions of I/O modules | Serial communication module UR20-1COM-232-485-422
388 1432790000/08/12.2015Manual u-remote
1COM-RS
Module status LED
Green: Communication on system bus
Red: Collective error diagnostic
1.1
Yellow: RS232 parameterised
Yellow ashing: Data are being recieved
1.2
Yellow: RS232 parameterised
Yellow ashing: Data are being transmitted
3.1
3.1 ... 3.4 Yellow: RS422 parameterised
3.1 + 3.2 Off, 3.3 + 3.4 Yellow: RS485 parameterised
3.3 Yellow ashing: Data are being recieved
3.4 Yellow ashing: Data are being transmitted
3.2
3.3
3.4
4.1 Green: Supply voltage +5VDC
4.3 Green: Supply voltage +24VDC
LEDindicatorsUR20-1COM-232-485-422,errormessagesseeChapter13
J
RS232
RS485
RS422
5 V
GND
24 V
GND COM
RS232 RXD
RS232 TXD
RS232 RTS
RS232 CTS
RS422 RXD+
RS422 RXD–
485/422 TXD+
485/422 TXD–
System
bus
U
SYS
U
IN
U
OUT
µC µC
+5 V DC
+24 V DC
GND
GND COM
DC
DC
1
2
3
4
Block diagram UR20-1COM-232-485-422