
10
3.4 Composition of a response message
(transmitted from this product to a high-level computer)
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."
3.4.1 Response message in response to a read request message
Start code
Address
Acknowledge code
Identifier
End code
BCC data
Numerical data
3.4.2 Response message in response to a write/store request message
Start code
Address
End code
BCC data
Acknowledge code
3.4.3 Response message in the case of an error
Start code
Address
End code
BCC data
Negative
Error code
acknowledge code
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