Specifications
8.1 Specifications of CPU Unit LAN Port Communication
Function
LAN port
Items Description
Interface 100BASE-TX / 10BASE-T
Baud rate 100 Mbps, 10 Mbps auto-negotiation (Note 1)
Transmission system Baseband
Max. segment length 100 m (Note 2)
Communication cable UTP (Category 5)
Max. distance between
nodes
100BASE-TX: 2 segments
10BASE-T: 5 segments
No. of nodes 254 units
Number of simultaneous
connections
User connections: 16
System connections: 4 (Note 3)
Communication protocol TCP/IP, UDP/IP
DNS Supports name server
DHCP Automatic getting of IP address
FTP server File transmission, server function, No. of users: 3
SNTP Time synch function
Communication function
MEWTOCOL-DAT (master/slave), MEWTOCOL-COM (master/slave)
MEWTOCOL7-COM (slave), MODBUS TCP (master/slave)
general-purpose communication
(Note 1) Switching between different speeds is done automatically by auto negotiation function.
(Note 2) The standards cite 100 m as the maximum, but noise resistance measures such as attaching a ferrite core
may be necessary in some cases, depending on the usage environment. Also, it is recommended to position a
hub near the control board, and limit the length within 10 m
(Note 3) Used when connecting tool software via LAN.
8-2
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