Omron CJ1W-FLN22, Operation Manual, Page: 47 / 277

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Message Transmission Section 2-3
Volume of Transmission
Data An area of 0.5 8 Kwords = 8.5 Kwords is provided for the whole net-
work.
The maximum quantity of data that can be transmitted by a single node is
8.5 Kwords. One word is equal to two bytes.
2-3 Message Transmission
Message transmission is used to transmit non-cyclic data.
Normally, when a send request is generated, data is transmitted to a specific
node.
Note 1. Message transmission allows OMRON PLCs to communicate with other
manufacturer’s PLCs.
2. Message transmission is performed between OMRON PLCs by executing
the SEND(090), RECV(098), and CMND(490) instructions.
3. Message transmission is performed between OMRON PLCs and other
manufacturer’s PLCs by executing the CMND(490) instruction.
Message Transmissions The maximum size of one message frame is 1,024 bytes (not including the
header).
2
15
2
0
Common Memory Area
0.5 Kw
8 Kwords
Area 1
Area 2
0.5 Kwords
1 2
3 4 5 6
Message transmission from node 1 to node 3
FL-net
Message transmission from node 6 to node 4
Message frame
1,024 bytes