
9
3.3 Composition of a request message
(transmitted from a high-level computer to this product)
For codes ① to ⑩, see "3.5 Description of codes."
For specific examples of request messages, see "4.1 Examples of communications to be read"
and "4.2 Examples of communications to be written."
3.3.1 Composition of a read request message
Start code
Address
Contents of the
Identifier
End code
BCC data
request: read/write
3.3.2 Composition of a write request message
Start code
Address
Contents of the
Identifier
End code
BCC data
Numerical data
request: read/write
3.3.3 Composition of a store request message
Start code
Address
Contents of the
Identifier
End code
BCC data
request: read/write
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