Mitsubishi Electric AJ71C24-S6 User Manual page 268

10. COMMUNICATIONS IN THE BIDIRECTIONAL MODE
MELSEC-A
(2) Writing data to the send area (TO, TOP, DTO, DTOP)
Data written to the bidirectional send area (default: O H t o 7FH).
PC CPU AJ71 C24
1
Buffer memory (bidirectional send area)
Send data length area storage
---------------
- - - - - - - - - - - - - - -
- - - - - - - - - - - - - - -
Send data storage area
t
I
- - - - - - - - - - - - - - -
- - - - - - - - - - - - - - -
i
Y[n+r)O (Send request)
XnO (Send completed)
Send Send
Sets the send data and send data length when
the send command signal
@[I)
is turned ON.
(4)Send completed
I
Xno
I
Data size
(1)Wriiing data length setting
Writes the send data length and send data to the
(3)Send request
Turns ON the send request signal (Y(n+l)O) after
(5) Canceling send request
Turns OFF the send request signal when the data
(XnO) is turned ON.
Example: To transmit 5-word data after writing "ABCDEFG123" to the
buffer memory area from 1 H when the AJ71 C24 I10 numbers are
allocated to
60
to 7F.
Send
command