26 REDUNDANT FUNCTION
26.3 Tracking Transfer
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Auto tracking data
The following tables list the data that is automatically transferred by the system regardless of parameter settings of tracking
transfer.
■Special relay
The following table lists the special relay areas that are automatically transferred by the system.
For details on the special relay, refer to the following.
Page 645 List of Special Relay Areas
SM number Name
SM315 Service processing constant wait setting flag
SM321 Start/stop SFC program
SM322 SFC program start status
SM323 Presence/absence of continuous transition for entire block
SM325 Output mode at block stop
SM326 SFC device/label clear mode
SM327 Output mode at execution of the end step
SM328 Clear processing mode when the sequence reaches the end step
SM752 Dedicated instruction End bit control flag
SM754 BIN/DBIN instruction error control flag
SM755 Scaling data check settings
SM756 Module access completion wait control flag
SM775 Selection of link refresh processing during the COM instruction execution
SM776 Local device setting at CALL
SM777 Local device setting in interrupt programs
SM792 PID bumpless processing (for the complete differentiation PIDCONT instruction)
SM794 PID bumpless processing (for the inexact differential S.PIDCONT instruction)
SM816 Hold mode (S.IN instruction)
SM817 Hold mode (S.OUT instruction)
SM960 Upper limit setting flag for the number of CPU module backup data
SM1646 System switching by a user
SM1762 Operation setting for access from the standby system to the extension base unit
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