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15-17
Chapter 15: Appendix
15
(2) FL-net header format
The FL-net header is 64 to 96 bytes long.
FL-net header
An FL-net header is added to every frame, to comply with the FL-net protocol.
[9] FL-net transaction code
The FL-net provides the following services with the message transmission service.
Message transmission service
64 to 96 byes
Less than 1500 byes
FA link data
Lower layer
header
Cyclic/message dataFL-net header
Less than 1024 bytes
No. Message transmission service of the FL-net
1 Read byte-block data
2 Write byte-block data
3 Read word-block data
4 Write word-block data
5 Read network parameters
6 Write network parameters
7 Stop commands
8 Run commands
9 Read profile
10 Read log data
11 Clear log data
13 Return message
14 Transfer transmission message