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Rockwell Automation Publication 1734-UM013J-EN-P - July 2014
Chapter 2
Safety Inputs, Safety Outputs, and Safety Data
Single-channel Mode
If an error is detected, safety input data and safety input status turn off.
Figure 7 - Normal Operation and Fault Detection (not to scale)
24V
0V
Test Output 0
Input Terminal 0
External Device
Fault Detected
ON
OFF
ON
OFF
ON
OFF
ON
OFF
24V
0V
ON
OFF
Safety Input 0
Status
Fault Detection
ON
OFF
ON
OFF
ON
OFF
Safety Input 0
Status
Safety Input 0
Data
Safety Input 0
Data
Input Terminal 0
Normal Operation
External Device
Test Output 0
Safety
I/O
Network
Data Sent
to the
Controller
Safety
I/O
Network
Data Sent
to the
Controller
Summary of Contents for Allen-Bradley 1734-IB8S
Page 1: ...POINT Guard I O Safety Modules Catalog Numbers 1734 IB8S 1734 OB8S 1734 IE4S User Manual ...
Page 4: ...4 Rockwell Automation Publication 1734 UM013J EN P July 2014 Summary of Changes Notes ...
Page 10: ...10 Rockwell Automation Publication 1734 UM013J EN P July 2014 Table of Contents ...
Page 14: ...14 Rockwell Automation Publication 1734 UM013J EN P July 2014 Preface Notes ...
Page 186: ...186 Rockwell Automation Publication 1734 UM013J EN P July 2014 Appendix D Safety Data Notes ...
Page 211: ......