Mitsubishi Electric Q80BD-J61BT11N, Руководство пользователя

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MELSEC
13 COMMUNICATION BETWEEN THE MASTER STATION AND
INTELLIGENT DEVICE STATION (AJ65BT-R2)
13.4.3 Data reception
The following illustrates the relation between the intelligent device station’s I/O
operations and the user program on the PC in data reception.
(The shaded areas indicate the devices that are actually used.)
mdReceive
Buffer memory
RX2
RX3
:
CC-Link Ver.2 board
RX2 (reception normal read request)
Intelligent device station (station No. 1)
Master station (station No. 0)
Personal computer
User program
mdReceive
RX3 (reception error read request)
:
RY2
Remote inputs (RX)
Remote outputs (RY)
: :
RY2 (reception read complete) mdSend
400H
401H
to
5FFH
3)
4)
5)
1)
2)
2)
1)
7)
6)
: :
: :
7)
6)
(reception data size designation area)
(reception data designation area)
1: When the remote net Ver.2 mode is selected, refer to the figure in Section 4.4.7(1).
When the remote net additional mode is selected, refer to the figure in Section 4.4.7(2).
User Program CC-Link Ver.2 Board
2) Reads out the reception normal read request
signal (RX2) and the reception error read request
signal (RX3).
3) With the reception normal read request signal
(RX2) ON, reads out the received data.
4) Turns ON the reception read complete signal
(RY2).
1) When the AJ65BT-R2 receives data from external
equipment, the reception normal read request signal
(RX2) or reception error read request signal (RX3) is
turned ON.
5) Turns ON the reception read complete signal (RY2)
of the AJ65BT-R2.
6) The AJ65BT-R2 turns OFF the reception normal
read complete signal (RX2) or reception error read
complete signal (RX3). 7) Reads out the reception normal read request
signal (RX2).
8) Turns OFF the reception read complete signal
(RY2).