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2.4.4 END Processing
The CPU module performs refresh processing with network modules and communication with external devices.
END processing includes the following.
• Refresh with network modules
• Refresh with CC-Link IE Field Network Basic
• Auto refresh with intelligent function module
• Intelligent function module dedicated instruction processing
• Device data latch processing
• Service processing
• Watchdog timer reset
• Auto refresh between multiple CPU modules
• Device data collection using the sampling trace function (only when trace point is set to every scan (after
END instruction execution))
• Self-diagnostics processing
• Special relay/special register value setting (only for those that should be set during END processing)
When the constant scan function ( Page 119, Section 3.2) is used, the results of processing performed in END
processing are held for the period between after END processing is completed and until the next scan starts.
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