Mitsubishi Electric Q80BD-J61BT11N, User Manual

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MELSEC
16 TROUBLESHOOTING
16.6 Measures for Slow Personal Computer Operation
This section explains the probable causes and corrective measures when the
operation of a personal computer becomes slow.
(1) Probable causes
The load due to the link refresh function may be the cause.
When the block data assurance per station setting is enabled, the CC-Link Ver.2
board driver executes the link refresh between CC-Link Ver.2 board driver buffer
and CC-Link Ver.2 board link device based on the cycle set in the parameter
setting ("Other settings" screen) of the CC-Link Ver.2 utility.
At this time, if the following causes are overlapped, the processing time of the link
refresh among the total processing capacity of the personal computer increases
and the operation of the personal computer becomes slow.
•
The link refresh cycle is short.
•
There are many remote station points of the whole network.
•
The processing capacity of a personal computer is low.
(2) Corrective measures
The following shows the measures when the operation of a personal computer
becomes slow.
•
Extend the link refresh cycle at <<Parameter settings>>(“Other settings” screen)
in the CC-Link Ver.2 utility.
•
Disable the block data assurance per station
•
Decrease the remote station points on the master station’s parameter settings
•
Decrease the number of boards to be installed on the personal computer
•
Increase the processing capacity of the personal computer
If any of the above corrective actions do not help, refer to Section 16.7.