Toho-electronics TTM200 Manuel d'utilisateur télécharger pdf (Page 25)

6.9 Composition of ASCII response messages (transmitted from this product

to a high-level computer)

 For the codes a) through g), see "6.10 Description of ASCII codes."

6.9.1 Response message for a read request message

Start code

“:”

Slave address

“1” , “1”

Function code

“0” , “3”

Number of byte items

“0” , “4”

First register data

(a low-level word)

High level

“0” , “0”

③

Data composition is ①, ②, ③,

and ④H. (① represents 1

byte.)

Low level

“0” , “0”

④

First register data

(a high-level word)

High level

“0” , “0”

①

Low level

“0” , “0”

②

LRC

“5” , “3”

End code

CR, LF

6.9.2 Response message for a write/store request message

Start code

“:”

Slave address

“0” , “1”

Function code

“1” , “0”

High level

“0” , “1”

First register address

Low level

“0” , “0”

Number of registers

High level

“0” , “0”

Fixed at 2

Low level

“0” , “2”

LRC

“E” , “C”

End code

CR, LF

6.9.3 Response message in the case of an error

Start code

“:”

Slave address

“0” , “1”

Function code

“8” , “3”

 In the case of an error, the function

code for the request message +

80H is entered.

Error code

“0” , “3”

LRC

“7” , “9”

End code

CR, LF

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 50 51

Commentaires sur ces manuels

Pas de commentaire

Toho-electronics TTM200 Manuel d'utilisateur Page 25

Commentaires sur ces manuels

Produits connexes et manuels pour Capteurs Toho-electronics TTM200