Mitsubishi Electric MELSEC iQ-F Series FX5 User Manual page 478

Each parameter is reflected to the buffer memory of the positioning module at the following reflection timings.
Parameter Operation
storage timing
Power-on Power-on
CPU module status: STOP →
CPU module status:
STOP → RUN
RUN
Module data • Dedicated instruction
initialization (GP.PINIT)
• [Cd.2] Module data initialization
request
*2 Some module parameters are reflected to the positioning module from the buffer memory by turning off and on [Cd.190] PLC READY
signal. For details, refer to the following.
Page 341 Valid timing of setting data
*3 When the parameter to be reflected does not exist at the reflection timing, refer to the following.
Page 477 Parameter reflection
*4 If the parameter is not set with GX Works3, the initial value is stored.
■Precautions
• To write module extension parameters to a file, specify the same write destination as the one set in the extension parameter
storage setting. When a different write destination is specified, written module extension parameters are not valid. When
the module extension parameter file does not exist in the storage destination set in the extension parameter storage
setting, Extension parameter acquisition error (Warning code: 0B00H) occurs at the reflection timing.
• To change a module extension parameter from a program when the extension parameter storage setting is "CPU", change
the parameter while Module access flag ([Md.140] Module status: b1) is on (module access permitted). While Module
access flag is off (module access disabled), the module extension parameter is changed by the internal processing of the
positioning module.
• To use the module extension parameters stored in the SD memory card of the CPU module, set the storage location to
"CPU" in the extension parameter storage setting. Set "Memory Card Parameters" of the CPU module so that module
extension parameters can be used.
■Restrictions
• Extension parameter storage settings can only be changed in GX Works3. These settings cannot be changed with
programs.
• When the extension parameter storage setting has been set to "CPU", the module data backup and the module data
initialization can be performed only while the CPU module status is STOP. Use "[Cd.1] Module data backup request" for the
module data backup and "[Cd.2] Module data initialization request" for the module data initialization.
• Changes to module parameters and module extensions parameters stored in the CPU module take effect when the CPU
module is turned off and on again, or a reset is performed. The CPU module cannot transition to the RUN state until the
power to the CPU module is turned off and on again or a reset is performed.
17 DATA USED FOR POSITIONING CONTROL
476
17.11 Parameter Reflection
Parameter setting value reflected to the buffer memory
*2
Module parameter Module extension parameter
(Extension parameter storage setting)
CPU module
Setting value of the Setting value of the module
module parameter file in extension parameter file in the
*4
the CPU module CPU module
Initial value (factory default setting value)
*3
Positioning module
Setting value of the module
extension parameter file in the
positioning module
The parameter just before the
status change of STOP to RUN is
held.