Special Relay And Special Register Used In The Memory Dump Function; Precautions For The Memory Dump Function - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

Special relay and special register used in the memory dump
function
For details, refer to the following.
• Special relay: Special relay relating to the memory dump function ( Page 825 Memory dump function)
• Special register: Special register relating to the memory dump function ( Page 869 Memory dump function)

Precautions for the memory dump function

This section describes precautions to take when using the memory dump function.
Mutual exclusion of the memory dump function
The mutual exclusion of the memory dump function is as follows.
The following table lists the cases when another function is executed during the execution of the memory dump function
Function that has been
already executed
Memory dump function
*1 The state where the memory dump function is in execution includes the memory dump status of "Collecting after trigger" or the save
status of "Saving in progress".
*2 The memory dump function is not included.
The following table lists the cases when the memory dump function is executed during the execution of another function.
Function that has been
already executed
CPU module data backup function
CPU module data restoration
function
iQ Sensor Solution data backup/
restoration function
Function specified in the internal
*3
buffer capacity setting
Function not specified in the
internal buffer capacity setting
*3 The memory dump function is not included.
Function to be Behavior
executed later
CPU module data backup The CPU module data backup function cannot be executed while memory dump is being
function registered/cleared.
CPU module data restoration The CPU module data restoration function cannot be executed while a memory dump file
function or memory dump setting file is being read or memory dump is being registered/cleared.
iQ Sensor Solution data The iQ Sensor Solution data backup/restoration function cannot be executed while
backup/restoration function memory dump is being registered/cleared.
Function specified in the If the internal buffer capacity setting is changed to execute the subsequent function,
internal buffer capacity attempting to start the subsequent function results in an error. The memory dump
*2
setting continues to function normally.
Function not specified in the If the condition "Total capacity that is set in the internal buffer capacity setting + Internal
internal buffer capacity buffer capacity that is set in other than the internal buffer capacity setting > 3072K bytes"
setting is satisfied, attempting to start the subsequent function results in an error. The memory
dump continues to function normally.
If the internal buffer capacity setting is changed to execute the subsequent function,
attempting to start the subsequent function results in an error. The memory dump
continues to function normally.
Function to be Behavior
executed later
Memory dump function While the CPU module data backup function is being executed, memory dump cannot be
registered/cleared.
While the CPU module data restoration function is being executed, a memory dump file or
memory dump setting file cannot be read or memory dump cannot be registered/cleared.
While the iQ Sensor Solution data backup/restoration function is being executed, memory
dump cannot be registered/cleared.
If the internal buffer capacity setting is changed to execute memory dump, attempting to
start memory dump results in an error. The function already in execution continues to
function normally.
If the internal buffer capacity setting is changed to execute memory dump, attempting to
start memory dump results in an error. The function already in execution continues to
function normally.
*1
12 DEBUG FUNCTION
12.1 Memory Dump Function
12
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