User manual

6 DetaileddescriptionsofI/Omodules| Digital output module UR20-4RO-SSR-255
218 1432790000/08/12.2015Manual u-remote
4RO-SSR
Module status LED
Green: Communication over the system bus
Red: Collective error diagnostic
1.1 Yellow: Output0 active
2.1 Yellow: Output1 active
3.1 Yellow: Output2 active
4.1 Yellow: Output3 active
LEDindicatorsUR20-4RO-SSR-255,errormessagesseeChapter13
COM 0
COM 0
NO 0
NO 0
COM 1
COM 1
NO 1
NO 1
COM 2
COM 2
NO 2
NO 2
COM 3
COM 3
NO 3
NO 3
COM 0
COM 0
NO 0
NO 0
COM 1
COM 1
NO 1
NO 1
COM 2
COM 2
NO 2
NO 2
COM 3
COM 3
NO 3
NO 3
System
bus
U
SYS
U
IN
U
OUT
1
2
3
4
µC
UR20 4RO-SSR-255
BlockdiagramUR20-4RO-SSR-255