Mitsubishi Electric MELSEC iQ-R Series User Manual page 112

■Deleting logs
Click the [Clear Log] button to delete logs in a master/local module
If the [Clear Log] button is clicked with "RAM + Flash ROM" selected, the logs stored in the flash ROM will also be deleted.
While the logs on the flash ROM are being deleted, do not power off the master/local module.
■Precautions
• Logging will not start in the following cases.
Item
Logs stored on the flash ROM have not yet been fully deleted.
"RAM + Flash ROM" has been selected and 45 logs have already been stored in the flash ROM.
The cumulative number of times that logs are stored in the flash ROM has exceeded 100000 times.
• The log storage areas listed below are available. To store 96 or more items (maximum 5000 items), keep the engineering
tool connected even after logging is started. If the number of logs stored in the RAM area has exceeded 95 without
connecting the engineering tool, the stored log will be overwritten, starting with the oldest one.
Log storage area
RAM area (equipped in a module)
Flash ROM area (equipped in a module)
Hard disk of the engineering tool (personal computer)
Creating a check sheet
A check sheet, which is useful for performing troubleshooting, is created through a wizard and with reference to the Open
Field Network CC-Link Troubleshooting Guide.
■Procedure
1.
Open the "CC-Link Diagnostics" window.
[Diagnostics]  [CC-Link Diagnostics]
2.
Double-click "Create Check Sheet" in "Related Functions".
3.
Configure settings with answering a series of questions displayed on the windows.
The created check sheet is saved in Excel format.
Do not check the transmission speed setting using a program or other peripherals at the same time. If
executed at the same time, checking of transmission speed setting may fail.
Stopping and restarting data link
Data link of a master/local module is stopped and restarted.
During a debugging, the master/local module does not receive data from other stations and does not send data of the own
station.
■Procedure
1.
Open the "CC-Link Diagnostics" window.
[Diagnostics]  [CC-Link Diagnostics]
2.
Select the icon for a master/local module where data link is to be stopped and restarted.
3.
Double-click "Stop Data Link" in "Related Functions".
4.
When step 3 is performed while the data link of the selected module has been stopped, the data link will restart.
When stopping or restarting data link, do not write data to the buffer memory area (buffer memory address:
5E0H).
4 TROUBLESHOOTING
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4.3 Checking the System Status
Number of logs stored
95 logs maximum
45 logs maximum
5000 logs maximum