Toho-electronics TTM000 Manuel d'utilisateur télécharger pdf (Page 10)

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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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