24
Rockwell Automation Publication 1734-UM013J-EN-P - July 2014
Chapter 2
Safety Inputs, Safety Outputs, and Safety Data
POINT Guard I/O Analog Input Module
These are the safe states of the POINT Guard I/O analog input module:
•
Safety input data to network in single-channel configuration: 0 (OFF)
•
Safety input data to network in dual-channel equivalent configuration:
–
If a diagnostic fault occurs, the signal for the faulted channel is set to 0
(OFF).
–
If a dual-channel discrepancy fault occurs, the dual-channel inputs
continue to report actual input signals.
Safety Inputs (1734-IB8S)
Safety inputs are used to monitor safety input devices.
Using a Test Output with a Safety Input
A test output can be used in combination with a safety input for short circuit,
cross-channel, and open-circuit fault detection. Configure the test output as a
pulse test source and associate it to a specific safety input.
Figure 4 - Example Use of a POINT Guard I/O Input Module
TIP
The test output can also be configured as a power supply to source 24V DC
to an external device, for example, a light curtain.
I0
I1
I4
I5
I2
I3
I6
I7
COM
COM
COM
COM
TO
T1M
T2
T3M
0
2
4
6
1
3
5
7
0
2
4
6
1
3
5
7
Where:
T0 = Test Output 0
T1M = Test Output 1 with Muting
T2 = Test Output 2
T3M = Test Output 3 with Muting
I0…I7 = Safety Inputs
Safety Input
Terminal
External
Contact
Содержание Allen-Bradley 1734-IB8S
Страница 1: ...POINT Guard I O Safety Modules Catalog Numbers 1734 IB8S 1734 OB8S 1734 IE4S User Manual ...
Страница 4: ...4 Rockwell Automation Publication 1734 UM013J EN P July 2014 Summary of Changes Notes ...
Страница 10: ...10 Rockwell Automation Publication 1734 UM013J EN P July 2014 Table of Contents ...
Страница 14: ...14 Rockwell Automation Publication 1734 UM013J EN P July 2014 Preface Notes ...
Страница 22: ...22 Rockwell Automation Publication 1734 UM013J EN P July 2014 Chapter 1 POINT Guard I O Overview Notes ...
Страница 150: ...150 Rockwell Automation Publication 1734 UM013J EN P July 2014 Chapter 8 Replacing POINTGuard I O Modules Notes ...
Страница 180: ...180 Rockwell Automation Publication 1734 UM013J EN P July 2014 Appendix C Specifications Notes ...
Страница 186: ...186 Rockwell Automation Publication 1734 UM013J EN P July 2014 Appendix D Safety Data Notes ...
Страница 190: ...190 Rockwell Automation Publication 1734 UM013J EN P July 2014 Appendix E Configuration Parameters Notes ...
Страница 204: ...204 Rockwell Automation Publication 1734 UM013J EN P July 2014 Appendix G History of Changes Notes ...
Страница 211: ......