4
FUNCTIONS
4.3 CC-Link Module Access Function
4.3.1 Block guarantee of cyclic data per station
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1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
SPECIFICATIONS
4
FUNCTIONS
5
SETTING AND
PROCEDURES
6
I/O NUMBER
ASSIGNMENT
7
MEMORIES AND
FILES
8
INSTALLING /
UNINSTALLING
POINT
When one of the following operations is performed to the CC-Link module, which
the Block guarantee of cyclic data per station is set to be enabled, the cyclic data
are automatically refreshed even without execution of the
QBF_RefreshLinkDevice function. Pay special attention to the following
operations.
• Monitoring on the Module monitor screen of the C Controller setting utility
• Monitoring on the Device monitor utility
• Reading data from the device using the QBF_FromBuf function (auto
refresh) or the MELSEC data link function from other user program (other
task)
Note that the write (transmission) area of link refresh devices (buffer memory) is
not refreshed.
The cyclic data are not refreshed when monitoring is performed specifying a CC-
Link module on other stations using the Device monitor utility.
Remark
Use the manual cyclic data refresh method if user program execution is desired
even during the waiting time of the user program, since the waiting time is
generated when using the automatic cyclic data refresh method.
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