Toho-electronics TTM-00BT Manual de usuario descargar pdf (Pagina 28)

7.9.12 Examples of communications to be written

Example: Request message: Requests that the temperature alarm output setting of EIF in channel 1

(High-level computer) of unit number 3 be changed to deviation top/bottom alarm + holding.

In response to that,

Response message: This returns a notice that the request message has been received.

(This product) *Check that it has been correctly written by reading the data separately.

Write request message (transmitted from a high-level computer)

①

②

③

④

―⑤― ―――⑥――― ⑦

⑧

Response message (returned from this product)

①

②

③

⑨

⑦

⑧

Code Code, data ASCII code, note 2)

① Start code STX 02H

② Unit number 3 33H

③ Channel number 1 31H

④ Request contents W (Write) 57H

⑤ Identifier, note 1) E1F 41H 34H 46H

⑥ Numerical data 00011 30H 30H 30H 31H 31H

⑦ End code ETX 03H

⑧ BCC data request 56H

response 05H

⑨ Acknowledge code ACK 06H

Note 1): See "6. Table of identifiers (codes)."

Note 2): For the ASCII codes, see "7.9.13. Table of ASCII codes."

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Toho-electronics TTM-00BT Manual de usuario Pagina 28