Mitsubishi Electric MELIPC MI5000 Series User Manual page 209

Communication with a device connected to the Ethernet port
(CH1) is not possible
Check the following items.
Check item
Does the IP addresses of devices connected to the Ethernet port (CH1)
overlap with a segment of the IP addresses of the virtual Ethernet of this
product?
Virtual Ethernet communications are not possible
Check the following items.
Check of Windows part
Check item
Is the IP address segment set for the Ethernet port (CH2) overlapped?
Have the IP address settings of the virtual Ethernet port been changed?
Is connection being prevented by the Windows firewall?
Is connection being prevented by installed antivirus software?
Check of the VxWorks part
Check item
Does the IP address set for the Ethernet port (CH1) overlap with the virtual
Ethernet IP address segments of this product?
In the following settings, are the virtual Ethernet IP address settings set to
being blocked?
• [Basic Parameter]  [External Device Cooperate Applicable Settings] 
[Security Settings]  [IP Filter Settings]
An error occurs during user program execution
Check the following items.
Check item
An error occurs in executable file (*.out) loading.
Is an error registered to the error information field of the MELIPC diagnosis
screen?
Does an error occur in a C Controller module dedicated function or MELSEC
data link function?
An error occurs in VxWorks standard API functions.
Stack size of the task that runs the user program is insufficient.
The pointer used in the user program refers to an invalid address.
memory area specified to the size is not reserved.
The VX_FP_TASK option is not specified for the task that performs floating-
point operations.
A VxWorks message is displayed when an error occurs.
Corrective action
Change the IP addresses of devices connected to Ethernet port (CH1) so that
these do not overlap with virtual Ethernet IP address segments.
Corrective action
Change the IP addresses of devices connected to Ethernet port (CH2) so that
these do not overlap with virtual Ethernet IP address segments.
Change the IP address settings of Windows to the following settings.
• IP address: 172.16.0.2, subnet mask: 255.240.0.0, Default gateway: (blank)
Change Windows firewall settings.
Change the antivirus software settings.
Corrective action
Initialize this product, and then change the IP address of the Ethernet port
(CH1) to the default settings.
Unblock the IP address of the virtual Ethernet in the IP settings.
Corrective action
• Check "Build Spec" during compiling, and then change to the correct "Build
Spec".
• Load first the files with the symbols required for the execution files to be
loaded.
Take appropriate actions in accordance with the content of the registered
error.
Take appropriate actions in accordance with the error code at the time of
function execution.
Refer to the manual of VxWorks. If the problem is not resolved, consult Wind
River Systems, Inc.
Increase the task stack size.
Make correction to make the pointer refer to a valid address.
Secure the memory area.
Specify the VX_FP_TASK option for the task that performs floating-point
operations.
Consult the Wind River Systems, Inc.
Appendix 1 Troubleshooting by Symptom
A
APPX
207