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SYSTEM CONFIGURATIONS2
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2
MELSEC-F
2.2 Devices Required for Network Configuration
This section explains the devices that are required to configure a network.
Network installation work requires sufficient safeguard; ask a network specialist for
installation.
When connecting FX3U-ENET-L to a network, either a 10BASE-T or 100BASE-
TX can be used.
The Ethernet module detects whether it is 10BASE-T or 100BASE-TX, and the
full-duplex or half-duplex transmission mode according to the hub.
For connection to the hub without the auto detection function, set the half-duplex
mode on the hub side.
(1) Connection using the 100BASE-TX
Use devices that satisfy the standards of IEEE802.3 and 100BASE-TX.
• Shielded twisted pair cable (STP cable), category 5
* Straight cables can be used.
(Correct operation is not guaranteed if a crossed cable is used to connect to
an external device via the 100BASE-TX of the Ethernet module. However, it
is possible to use crossed cables to connect two Ethernet modules for data
communication or to connect an Ethernet module.)
•RJ45 plug
• 100Mbps hub
External device
Twisted pair cable
Hub
* Up to 2 levels are allowed
for cascade connection
Ethernet module
