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16 TROUBLESHOOTING
16.5 Troubleshooting for Data Link
151
16
Driver WDT error
When the driver WDT error occurred, check the following items.
*1 A driver WDT error may occur when the system is overloaded temporarily due to the following factors.
Windows start processing at the personal computer startup.
Operation of a device driver such as a graphic board.
Operation of other software applications.
If the problem is not solved by the above corrective actions, refer to the following section and contact us.
Page 166 Information Required for Inquiries
Driver does not start
When the driver does not start normally, check the following items.
If the problem is not solved by the above corrective actions, refer to the following section and contact us.
Page 166 Information Required for Inquiries
Bus error
When a bus error occurs, check the following items.
If the problem is not solved by the above corrective actions, refer to the following section and contact us.
Page 166 Information Required for Inquiries
16.5
Troubleshooting for Data Link
The following shows the troubleshooting for error for the data link on the network.
Page 152 Communication error (ERR. LED is ON/Flashing)
Page 152 User program cannot access CPU modules other than QCPU (Q mode) and MELSEC iQ-R series CPU
Page 153 Communication cannot be performed occasionally when executing user program
Page 153 Station is disconnected
Page 153 Communication is unstable
Item
Corrective action
Has the error occurred due to a temporary system overload ?
• Reset the board. (
• Restart the personal computer.
Has the same error occurred repeatedly? (Is the system
overloaded constantly?)
• Remove the factor of system overload.
• Disable the driver WDT function or increase the driver WDT monitoring time. (
Item
Corrective action
Is the board installed properly?
Check the board installation status. (
Page 157 Check the board installation)
Is the channel number set properly?
Check the channel number. (
Page 160 Checking channel numbers)
Is the software package installed?
Reinstall the software package. (
Item
Corrective action
Is the board installed properly?
Check the board installation status. (
Page 157 Check the board installation)
Is the board operating normally on another personal computer?
• After formatting the HD, install the operating system again.
• Repair or replace the personal computer.
Summary of Contents for MELSEC Q80BD-J71GF11-T2
Page 2: ......
Page 6: ...4 Disposal Precautions CAUTION When disposing of this product treat it as industrial waste ...
Page 118: ...116 12 MONITORING MEMO ...
Page 140: ...138 14 MELSEC DATA LINK LIBRARY MEMO ...
Page 142: ...140 15 PROGRAMMING 15 1 Precautions on Programming MEMO ...
Page 243: ...241 I U Utility 83 ...
Page 247: ......