Allen-Bradley 1756-L61S ControlLogix 5561S, Справочное руководство

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Rockwell Automation Publication 1756-RM093J-EN-P - April 2018 83
Reaction Times Appendix C
Logic Chain Using Produced/Consumed Safety Tags
Figure 21 - Logix System Reaction Time for Input to Controller A Logic to Controller B Logic to
Output Chain
The Logix System Reaction Time for any input to controller A logic to controller
B logic to output chain consists of these seven components:
1. Safety input module reaction time plus input delay time
2. Safety Input Connection Reaction Time Limit
3. Safety Task Period plus Safety Task Watchdog time for Controller A
4. Produced/Consumed Safety Connection Reaction Time Limit
5. Safety Task Period plus Safety Task Watchdog time for Controller B
6. Safety Output Connection Reaction Time Limit
7. Safety output module reaction time
To aid you in determining the reaction time of your particular control loop, a
Microsoft Excel spreadsheet is available in the Tools folder of the RSLogix 5000
software CD.
1. Safety Input
Module Delay 7. Safety Output
Module Delay
2. Safety Input Connection
Reaction Time Limit
6. Safety Output Connection
Reaction Time Limit
CIP Safety Network
4. P/C Safety Connection Reaction Time Limit
Ethernet
Network
Ethernet
Switch
Ethernet
Network
CIP Safety Network
Gu
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r A
De
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N
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M
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Ethernet Modul
e
Dev
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t Mo
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Etherne
t Module
Gu
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Co
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r B
3. Safety Task
Safety Task Watchdog
5. Safety Task
Safety Task Watchdog