Mitsubishi-electric QJ71C24N Manuel d'utilisateur télécharger pdf (Page 169)

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MELSEC-Q

7 DATA COMMUNICATIONS USING BIDIRECTIONAL PROTOCOL

(2) Transmission data arrangement

The following example shows an arrangement of the transmission data to be sent

to the external device when storing it in the transmission area.

(Example) When "ABCDEFG123" is sent:

02H 47H 33H 32H 31H 47H 46H 45H 44H 43H 42H 41H 00H

05H

32 1 GFEDCBA

ENQ

Sum

check

code

(00

)(05

)

(42

)

(44

)

(46

)

(31

)

(33

)

(41

)

(43

)

(45

)

(47

)

(32

)

Transmission

data count

designation area

Transmission

data designation

area

Transmission area

(buffer memory)

Q series C24

External device

Receive data (response message)

ACK

(Normal completion)

(0005H)

Data

length

Transmission data (response message)

1 2 ... 164 165 166 167 168 169 170 171 172 173 174 ... 357 358

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Mitsubishi-electric QJ71C24N Manuel d'utilisateur Page 169

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