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5 HANDLING CC-LINK EMBEDDED I/O ADAPTER
5.2 Cascading Method
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The CC-Link embedded I/O adapters can be cascaded. Up to two adapters can be
installed side by side in the same board.
Cascade the adapters as shown below.
The following diagram gives an example of 16-point CC-Link embedded I/O adapters.
Review the pin numbers when 32-point CC-Link embedded I/O adapters are used.
OE-IN
A20
CC-Link enbedded
I/O adapter (2)
SD-IN
A19
RD
B18
A18
RDGON
(OPEN)
POINT
Since the cascade communication pattern is easily affected by noise, it must be
separated as far away as possible from the other noise-laden patterns (power
supply, I/O signals).
OE-IN
A20
B20
OE-OUT
B22
DA
CC-Link enbedded
A22
DB
I/O adapter (1)
SD-IN
B21
DG
A19
A21
FG
RD
B18
B19
A17
SD-OUT
GND
MELSEC-A
B20
OE-OUT
DA
B22
DB
A22
DG
B21
FG
A21
B19
SD-OUT
A18
A17
RDGON
GND
DA
DB
DG
SLD
FG
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