28 FUNCTIONS
28.3 Tracking Transfer
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28
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 803 List of Special Relay Areas
■Special register
The following table lists the special register areas that are automatically transferred by the system.
*1 The Process CPU with firmware version "14" or later supports this special register area. ( Page 132 Error detection invalidation
setting)
For details on the special register, refer to the following.
Page 833 List of Special Register Areas
■PID control instruction information
The PID control data that is specified with the PIDINIT or S.PIDINIT instruction is transferred. ( MELSEC iQ-R
Programming Manual (CPU Module Instructions, Standard Functions/Function Blocks))
■System data
The data related to the redundant system, such as system switching and operation mode change, is transferred.
SM number Name
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)
SM1646 System switching by a user
SD number Name
SD49
*1
Error detection invalidation setting
SD250 Loaded maximum I/O
SD414 2n second clock setting
SD415 2n ms clock setting
SD771 Specification of the number of write instruction executions to data memory
SD775 Selection of refresh processing during the COM instruction execution
SD792, SD793 PID limit setting (for complete derivative)
SD794, SD795 PID limit setting (for incomplete derivative)
SD816, SD817 Basic period
SD818 Bumpless function availability setting for the S.PIDP instruction
SD1662 Tracking transfer data receive completion wait time
SD1667 to SD1670 Tracking transfer trigger