Mitsubishi Electric MELSEC-Q-MR-JE-C, Reference Manual

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2 FUNCTION DESCRIPTION
2.3 FB Operation
11
2
2.3
FB Operation
Data communication method
To control the devices connected with CC-Link IE Field Network Basic, the control information is transmitted to and received
from the connected devices though the RX/RY/RWr/RWw register. The FBs described in this manual execute reference and
updating of the device specified in the link refresh setting.
Defining the contents that the customer sets in the link refresh setting to the global label enables the FBs to access the device
specified in the link refresh setting. The data is exchanged between the QCPU and the MR-JE-C in the fixed cycle by using
the set device.
FB reads the data after the global labels
related to RX and RWr are set.
Write area
QCPU MR-JE-C
Read area
Write area
Device
Link
refresh
FB
MR-JE-C
Device
Write
FB
QCPU
Read area
Read area
Write area
Link
refresh
FB writes the data after the global labels
related to RY and RWw are set.
Read