Mitsubishi MELSEC L Series User Manual page 221

Data when a receive
frame is received at
each Q series C24
9 - 14
9 CONTENTS AND REGISTRATION OF THE USER FRAMES FOR DATA COMMUNICATION
REMARKS
With a multidrop link, if the receive user frame inherent to each Q series C24 is
connected to the link in advance, the Q series C24 of a given station will store only
the arbitrary data area of the message transmitted by the external device to the
receive data storage area.
External
device
CPU C24
S
(First frame) T 0 A ;
X
C
(Last frame) ;
R
Data used by the external device
to indicate the transmission destination
S
Arbitrary
C
T 5 A ; ;
data area
R
X
CPU C24
(0) (1)
S
T 1 A ;
X
L C L
;
F R F
L
F Received by the station No.5 Q series C24.
CPU C24
(5)
S
T 5 A ;
X
C L
;
R F
C24:Q series C24, QC24(N)
( ): Station No.
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