Usb Device Cannot Be Recognized; File Read-Out (Download) From C Controller Module Fails; An Error Occurs During User Program Execution - Mitsubishi Electric MELSEC Q Series User Manual

23.4.6

USB device cannot be recognized

Check the following items.
C Controller module has not been connected with the USB
device correctly.
An error occurred on C Controller module.
USB device (other than the one compliant with the USB
Mass Storage Class standard) was connected with the
power supply for C Controller module turned ON.
23.4.7

File read-out (download) from C Controller module fails

Check the following items.
Check the transfer mode of FTP.
23.4.8

An error occurs during user program execution

Check the following items.
An error occurs in executable file (*.out) loading.
(Page 407, (1) in this section)
Event(s) is registered with the event history.
An error occurs in C Controller module dedicated
function, bus interface functions or MELSEC data link
functions.
An error occurs in VxWorks standard API functions.
Stack size of the task that runs the user program is
insufficient.
The pointer used by the user program refers to an
invalid address.
The memory area specified in Size is not allocated.
The VX_FP_TASK option is not specified for the task
that performs floating-point operations.
A VxWorks message appears when an error occurs.
406
Check item
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Corrective action
Check if C Controller module is connected with the USB
device correctly.
Page 106, Section 7.6.3
Remove the error factors according to the corrective actions
for each error.
Connect a USB device (other than the one compliant with the
USB Mass Storage Class standard) before turning ON the
power supply for C Controller module.
Corrective action
Change the transfer mode of FTP to a proper mode.
Corrective action
• Set the "Build Spec" in compiling to "PENTIUM4gnu".
(CW Workbench Operating Manual)
• Cordon a free space in the work RAM.
• Download the files with all symbols required for files to load
first.
Take appropriate actions according to details of the
registered event(s).
(Page 434, Appendix 2)
• Take appropriate actions according to the error code
shown at the time of function execution.
(Page 409, Appendix 1)
• Check the mode which has been executed the initialization
setting.
(Page 62, Section 6.1)
Refer to the manual for VxWorks.
If the error persists, consult Wind River Systems, Inc.
Increase the task stack size.
Make correction to make the pointer refer to a valid address.
Allocate the memory area.
Specify the VX_FP_TASK option for the task that performs
floating-point operations.
Consult the Wind River Systems, Inc.