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4.4 Link Direct Device
The link direct device is a device for direct access to the link device in a CC-Link IE Controller Network module,
CC-Link IE Field Network master/local module or MELSECNET/H module. This CPU module can directly write data to
or read data from the link device in each network module using sequence programs, regardless of the link refresh of
the CPU module.
(1) Specification method and application example
(a) Specification method
• For a CC-Link IE Controller Network module and MELSECNET/H module, specify the device with a
network number and a device number as shown below.
• For a CC-Link IE Field Network master/local module, specify the device with a network number and a
device number as shown below.
Specification method: J
\
Device No.
Input(X)
X0 to 1FFF
Output(Y)
Y0 to 1FFF
Link relay(B)
B0 to 7FFF
Link register(W)
W0 to 1FFFF
Link special relay(SB)
SB0 to 1FF
Link special register(SW)
SW0 to 1FF
Network number : 1 to 239
Specification method: J
\
Device No.
Input(X) X0 to 3FFF
Output(Y) Y0 to 3FFF
Link register(RWw) W0 to 1FFF
Link register(RWr) W2000 to 3FFF
Link special relay(SB) SB0 to 1FF
Link special register(SW) SW0 to 1FF
Network number : 1 to 239