Mitsubishi Electric MELSEC iQ-F Series FX5 User Manual page 479

Parameter reflection
In the positioning module, the parameter is reflected to the buffer memory at power-on or when the CPU module status is
changed from STOP to RUN. The following table shows the parameters reflected to the buffer memory.
Parameter type Extended parameter
storage setting

Module parameter
Module extension CPU
*1
parameter
Positioning module
*1 When the parameter of the positioning module does not exist in the CPU module, the setting value of the buffer memory is the factory
default value at power-on and the value just before the status change is held when the CPU module status is changed from STOP to
RUN.
*2 When the data in the positioning module is damaged, Flash ROM sum check error (Error code: 1932H) occurs.
When a module extension parameter is changed with a program, the changed module extension parameter
can be reflected to the buffer memory when the power is turned on or the CPU module status is changed from
STOP to RUN.
■Precautions
• When the CPU is set in the extension parameter storage setting and the module extension parameter cannot be reflected
at power-on or the CPU module status is changed from STOP to RUN, Extension parameter acquisition error (Warning
code: 0B00H, 0B01H, 0B02H) occurs. At this time, the module extension parameter is the initial value set at the factory.
• The module parameter set with a program is overwritten with the parameter set in GX Works3 at power-on or when the
CPU module status is changed from STOP to RUN. When the module parameter is not written to the CPU module, the
setting value of the buffer memory is the factory default value at power-on and the value just before the status change is
held when the CPU module status is changed from STOP to RUN.
• To use the module extension parameter set with a program after the power is turned off or the CPU module status is
changed from STOP to RUN as well, backup the module extension parameter by using the module data backup function.
Parameter initialization
Initialize the parameter of the positioning module according to the methods as shown below.
: Initialized, : Not initialized
Initialization method
• Dedicated instruction GP.PINIT
• [Cd.2] Module data initialization request
*1 The extension parameter storage setting determines whether the module extension parameter file stored in the CPU module is
initialized or the module extension parameter file stored in the positioning module is initialized.
■Precautions
When the module parameter is written to the CPU module, the written module parameter is reflected at power-on or when the
CPU module status is changed from STOP to RUN. To cancel reflecting the parameter, delete the parameter from the CPU
module or initialize the parameter with GX Works3.
■Restrictions
When the extension parameter storage setting has been set to "CPU", the module data initialization can be performed only
while the CPU module status is STOP. Use "[Cd.2] Module data initialization request" for the module data initialization.
Power-on
Parameter stored in the CPU module
Module extension parameter stored in the CPU module or SD memory card
Module extension parameters stored in the
*2
positioning module
Data type
Buffer memory
*1
Parameter file
CPU module status: STOP → RUN
*1

Parameter to be initialized
Module parameter Module extension
parameter
 
 
17 DATA USED FOR POSITIONING CONTROL
17.11 Parameter Reflection
17
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