Mitsubishi-electric QJ71C24N Manuel d'utilisateur télécharger pdf (Page 126)

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MELSEC-Q

6 DATA COMMUNICATION USING THE NON PROCEDURE PROTOCOL

6.1.2 The receive area and the received data list

The following shows the list of the receive area and the receive data for performing

data reception using the non procedure protocol.

(1) Receive area

The receive area is a memory area for storing the data received from the external

device and the receive data count in order to read the receive data for the PLC

CPU. By default, the receive area is assigned to addresses 600

to 7FF

(CH1

side) and A00

to BFF

(CH2 side).

Buffer memory

Receive data count storage area

Receive data storage area

CH1

address

600

601

7FF

(Default)

Writes the receive data storage count when the PLC CPU

is requested to read the receive data.

Stores the arbitrary data area of the receive data.

The receive data count units (word/byte) are up to the value

set to GX Configurator-SC word/byte units designation.

Receive area

•

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Mitsubishi-electric QJ71C24N Manuel d'utilisateur Page 126

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