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4.2 CPU Module Specifications
4.2.3 Communications Specifications
4-8
4.2.3
Communications Specifications
This section provides the communications specifications of the CPU Module.
Item
Specification
Remarks
Abbreviation
218IFD
−
Common
Items
Communications Interface
10Base-T or
100Base-TX
−
Number of Communications Ports
(Connectors)
1
−
Communications Protocols
TCP, UDP, IP, ARP, or
ICMP
−
Ethernet
Commu-
nications
Maximum Number of Communications
Connections
20 + 2 (I/O message
communications)
−
Maximum Number of Communications
Channels
10 + 2 (I/O message
communications)
−
Automatic Reception
Supported.
Not supported for no-pro-
tocol communications.
Maximum Number of Automatic Reception
Connections
10
−
Maximum
Size of
Message
Communi-
cations
MEMOBUS
Write: 100 words
Read: 125 words
−
Extended MEMOBUS
Write: 2,043 words
Read: 2,044 words
−
MELSEC (A-compatible 1E)
Write: 256 words
Read: 256 words
−
MELSEC (QnA-compatible 3E)
Write: 960 words
Read: 960 words
−
MODBUS/TCP
Write: 100 words
Read: 125 words
−
OMRON
Write: 996 words
Read: 999 words
−
TOYOPUC
Write: 1,022 words
−
No-protocol
Write: 2,046 words
−
Maximum
Size of I/O
Message
Communi-
cations
MEMOBUS
Write: 100 words
Read: 125 words
−
Extended MEMOBUS
Write: 1,024 words
Read: 1,024 words
−
MELSEC (A-compatible 1E)
Write: 256 words
Read: 256 words
−
MELSEC (QnA-compatible 3E)
Write: 256 words
Read: 256 words
−
MODBUS/TCP
Write: 100 words
Read: 125 words
−
OMRON
Write: 996 words
Read: 999 words
−
Receive Buffer Mode Selection for
No-protocol Communications
Supported.
−
Engineer-
ing Tool
Communications Platform
Ethernet
−
Controller Searches
Supported.
−