Module Data Initialization Function - Mitsubishi Electric MELSEC iQ-F Series FX5 User Manual

13.2

Module Data Initialization Function

This function sets module parameters and module extension parameters (positioning data and block start data) in the buffer
memory of the positioning module and setting values in the module extension parameter file to their factory default settings.
Module data initialization means
This function is executed with a program.
Control details
The following table lists the parameters that are initialized with the module data initialization function.
*1
Parameter
Module parameter
Module extension parameter
*1 For the parameter file, refer to the following.
Page 475 Parameter Reflection
*2 The storage destination of module extension parameters is specified by the extension parameter storage setting. For details, refer to the
following.
Page 474 Extended parameter storage setting
*3 The module data initialization can be performed only while the CPU module status is STOP.
Control precautions
• Execute the module data initialization function only when the positioning control is not performed (when [Cd.190] PLC
READY signal is off). If the initialization is executed while [Cd.190] PLC READY signal is on, PLC READY ON write
(Warning code: 0905H) will occur.
• Writing to the flash ROM can be executed up to 100000 times. If the number of writing to the flash ROM exceeds 100000
times, writing data to the flash ROM may become impossible and Flash ROM write error (Error code: 1931H) will occur.
• After the parameter initialization is performed, powering off and on the system again or resetting the CPU module is
required.
• If an error occurs in the set parameters of the positioning module while the [Cd.190] PLC READY signal is turned on, the
READY signal ([Md.140] Module status: b0) will not turn on and control cannot be executed.
• The number of module data initializations using a program after the power is turned on once or the CPU module is reset is
limited to up to 25 times (including the number of executions of the module data backup function). If the writing operation is
executed 26th times, Flash ROM write number error (Error code: 1080H) will occur. If this error occurs, reset the error,
power off and on the module again, or reset the CPU module.
Extension parameter storage setting
CPU module
The module parameters in the buffer memory are initialized.
The module extension parameters in the buffer memory are initialized.
The module extension parameter file in the CPU module
*3
is initialized.
*2
Positioning module
The module extension parameter file in the positioning
module is initialized.
13 COMMON FUNCTIONS
13.2 Module Data Initialization Function
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