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FX
-16LNK-M MELSEC-I/O LINK REMOTE I/O SYSTEM MASTER BLOCK
2N
Grounding
•
When grounding the FG terminal, use a wire as thick as possible (2.0 mm
Perform grounding as shown below. Never perform common grounding with equipment with high fre-
quency.
I/O link
Dedicated grounding
•
When shielded twisted-pair cables are used, transmitted waveforms may be affected by the ground con-
dition and communication errors may occur in a long-distance system.
The effects given by shield grounding is determined by the number of connected remote I/O units and
the total extension distance. If the relationship shown in the table below is realized, do not perform
grounding. (For details, refer to the next page.)
Number of connected
remote I/O units
Minimum total exten-
sion distance
The number of connected remote I/O units above does not mean the number of stations.
When cabtyre cables are used, transmitted waveforms are not affected by the ground condition because
shield is not provided.
Other
I/O link
equipment
equipment
Common grounding
→ Best
→ Good
1
2
3
150 130 110 100 90
Other
Other
I/O link
equipment
Common grounding
→ Not allowed
4
5
6
7
8
85
75
Connection and Wiring 3
2
).
9
10
11~12 13~15
70
65
60
55
3-6
16
50
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