Mitsubishi Electric MELSEC iQ-R Series Manual page 27

Flexible high-speed I/O control module
■Restoration of hardware logic
Setting "Hardware logic control auto restoration executed/unexecuted" of the module parameter to "Enable" allows the
module-specific backup parameter (hardware logic) in the CPU module to be automatically restored upon module recognition.
Thus, a newly replaced flexible high-speed I/O control module operates with the same hardware logic as that of the old
flexible high-speed I/O control module, without the hardware logic being written from the configuration tool.
Setting "Hardware logic control auto restoration executed/unexecuted" to "Disable" does not allow the hardware logic to be
automatically restored upon module recognition. When replacing the module with a new flexible high-speed I/O control
module where the hardware logic is already registered, set "Hardware logic control auto restoration executed/unexecuted" to
"Disable" to perform online module change.
Replacing the module with a flexible high-speed I/O control module where the hardware logic is already
registered results in the mismatch between the module-specific backup parameter of the CPU module and the
hardware logic in the flash ROM of the new flexible high-speed I/O control module. After the replacement,
update the module-specific backup parameter of the CPU module. For the update method, refer to the User's
Manual (Application) for each module.
Positioning modules
■Q compatible mode
A module in operation in Q compatible mode also allows online module change. The newly replaced positioning module starts
up in Q compatible mode.
■Module-specific backup parameter
The module-specific backup parameter is not provided, and thus no data is backed up.
■Module parameter and module extension parameter
The module parameter and module extension parameter to be reflected to the new positioning module after online module
change differ depending on the setting of "Extended parameter storage setting".
Parameter
Module parameter
Module extension parameter
The recommendation for online module change is to set "Extended parameter storage setting" to "CPU".
With the setting "CPU", the module extension parameter of the CPU module or remote head module is
reflected, thus eliminating the need for writing the same settings as those of the old module into the new
module with the engineering tool.
■Precautions
Performing online module change while the positioning module is in operation causes an axis error, which stops the operation.
Before online module change, halt the operation and then make sure that the machines are not working.
Extension parameter storage setting
CPU
The module parameter of the CPU module or remote head
module is reflected.
The module extension parameter of the CPU module or
remote head module is reflected.
Positioning module
The module parameter of the CPU module or remote head
module is reflected.
The module extension parameter of the positioning module
is reflected.
3 REPLACEMENT PROCEDURE
3.1 Specifications
3
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