Rockwell Automation 1755-OF8 GuardPLC Controller Systems - Manual (Page 120)

120 Publication 1753-UM001C-EN-P - March 2010
Chapter 13 Controller Configuration and Modes of Operation
Routine Modes The controller runs only one routine. The following table and
flowchart summarize the routine modes.
Mode Description
Run_Run The controller is in the Run mode.
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The routine is executed cyclically by the controller.
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Input data are processed in the routine.
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Output data of the routine are operated.
Run_Freeze The controller is in the Run mode.
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The routine is not executed.
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No input data are processed.
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No output data of the routine are operated.
Stop The controller is in the Stop mode.
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The routine is no longer being executed.
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All outputs have been reset.
Failure_Stop The controller is in the Stop mode.
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The routine was stopped due an error.
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All outputs are reset.
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The hardware watchdog is not triggered.
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To recover from Failure_Stop, a restart of the controller is necessary. A restart can be
initiated only via RSLogix Guard PLUS! software. See
Recover From a Failure_Stop on
page 116 .
Test Mode (single step) The controller is in Run mode.
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The routine is triggered manually.
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I/O data are processed.
IMPORTANT: Test Mode is not permitted for safe operation.