Mitsubishi Electric MELSEC iQ-R-R00CPU, User Manual

Page: 232 / 1028

230
12 DEBUG FUNCTION
12.1 Memory Dump Function
The following table shows the cases where the file operation related to the memory dump function is executed while the
memory dump function is in execution.
*4
*4 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".
Behavior at parameter change when functions consuming the internal buffer are active
If the internal buffer capacity setting is changed during the execution of functions that consume the internal buffer, attempting
to start memory dump results in an error, where the memory dump fails to start.
Operation on each individual file
Write, read, and delete are possible on each file. In addition, folder/file all delete and folder delete are possible on the memory
or folder in which files are stored. The following table shows whether each operation is possible or not depending on the
execution status of memory dump.

: Operation possible,

: Operation not possible
*1 The state where the memory dump function is in execution includes the memory dump status of "Collecting after trigger".
Where to carry out memory dump
Concurrent execution from multiple sources is not allowed. In the CPU module, execution at a time from only one source is
possible.
Trigger condition during the registration of memory dump
If a trigger condition is established during the registration of memory dump, the memory dump settings can be registered. A
second establishment of the trigger condition is recognized as a trigger condition there.
When file register is specified as specification device in the condition specification
After registering memory dump, do not change the file name of the file registers and the block number of the file registers.
Doing so may result in a failure to successfully collect the memory dump results.
Target file File operation Behavior
Memory dump setting file Write Settings that are subsequently written during the execution of the memory dump function
are reflected after the completion of save, not reflected immediately.
Delete If the memory dump setting file is subsequently deleted during the execution of the
memory dump function, the memory dump settings are cleared after the completion of
save.
Initialize Initialization fails on the memory dump setting file during the execution of the memory
dump function.
Folder delete Folder delete fails on the folder in which the memory dump setting file is stored.
Memory dump file Write, read, delete, initialize,
and folder delete Write, read, delete, initialize, and folder delete fails on the memory dump file during the
execution of the memory dump function.
File type Operation to be performed
Read Write/delete Folder/file all deletion Folder delete
Not during
execution
*1
During
execution
*1
Not during
execution
*1
During
execution
*1
Not during
execution
*1
During
execution
*1
Not during
execution
*1
During
execution
*1
Memory dump setting
file        
Memory dump file        
Function that consumes
the internal buffer other
than memory dump
Memory dump
Function in execution
Function in execution
An error occurs.
Memory dump is not allowed to start.
Internal buffer capacity setting changed
(by changing the parameters of internal
buffer capacity setting)
Memory dump setting file
deleted Memory dump setting file
written