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4
1. Ethernet 4-3
Network Communications
Notes on Ethernet Communications
For V7i:
• To use Ethernet communications on V7i, use the 10BASE-T connector (LAN) provided
on the unit. It is not possible to use Ethernet or FL-net (OPCN-2) communications by
attaching the communication I/F unit CU-03 to V7i at the same time. When CU-03 is
mounted, the 10BASE-T connector (LAN) provided on the unit cannot be used.
• When using Ethernet communications with CU-03 mounted, the Web server or e-mail
function cannot be used.
For V7:
• To use Ethernet communications on V7, the communication interface unit “CU-03” must
be mounted. When V7 is equipped with the communication interface unit CU-03, it
becomes Ethernet-ready. In this case, however, the Web server or e-mail function is
not available.
IP Address for the V7 Series
To enable Ethernet communications on the V7 series, it is necessary to set the IP address
for identification of the V7 series on the network. The IP address should be set on the Main
Menu screen of the V7 series. For more information, refer to “Chapter 2 MONITOUCH
Operations.”
Communication Interface Unit CU-03
Specifications of Communication Interface Unit CU-03
Specifications
Item AUI
10BASE-T
10BASE5 10BASE2
Baud rate 10 Mbps
Transmission method Base band
Maximum network
distance or maximum
node interval
2500 m (5 segments) 925 m (5 segments) 500 m (4 HUBs)
Maximum segment
length
500 m 185 m
100 m
Between the node and the
HUB
Maximum number of
nodes
100/segment 30/segment 2/segment
Minimum node interval 2.5 m 0.5 m None
Connecting cable
Ethernet coaxial cable
(50 Ω)
RG58A/U, RG58C/U
coaxial cable (50 Ω)
UTP
(unshielded twisted pair)
22-26AWG