Mitsubishi Electric AJ71C24-S6 User Manual page 184

8. COMMUNICATIONS USING DEDICATED PROTOCOLS
MELSEC-A
(3) Monitoring the extension file register (ACPU common command)
Iesignation Method
I
St. No. :Station number
Designation in protocol 1 is shown below.
Monitor
(extension file register)
command
The number of charactersfor the number of points designated by
monitor data registration (EM).
1 point of device uses 4 characters.
Therefore,
a
1-word data is expressed in 4 digits (hexadecimal)
computer
jesignation Example]
Monitoring after registering the monitor data (word units) as mentioned in item (2),
(Message wait time is 0 msec)
St.
NO.
HIL
(1) the content of R1234 of extension file register block number 05 is 3501 H (13569 in decimal),
(2) the content of R2345 of extension file register block number
06
is4F58H (20315 in decimal),
(3) the content of R3055 of extension file register block number 15 is 0150H (336 in decimal),
(4)
the content of R W of extension file register block number 17 is 1C2DH (7213 in decimal),
AJ71 C24
Check sum is calculated
within this range
.
PC
N ~ .
H I L
Computer
t
St.
NO.
M E
I
I
PC
NO.
AJ71 C24
Message
Waiting time
Check sum is calculated within this range.
AJ71C24 automatically adds the sum check code.
4
r;\.
E
Q
6"
\ l l , , l I l
I
I I
I
Monitor Monitor
1
I
1
Monitor
results
I
results
I
>
results
----
(I) (2) (3) (4)
A
Y18, 4 1x
M H , ~
s
X
Sum
; z ;
I
A
K
, .
4&,4L
r / , , , , , , ,
I I I
T O A F F 3 5 0 1 1 4 F 5 8 1 0 1 5 0 1 l C 2 O T 6 A
~ . n ~ , ~ ~ ~ ~ ~ , ~ s ~ ~ . , ~ , n ~ , ~ ~ ~ ~ n ~ , ~ s ~ , ~ ~ , ~ ~
Character area B
I
t", " :, "
&4P,4b
C O A F F
M~Ja,ll~
4 6 d &
E
X
;
SK,+IH
St.
NO.
H l L
P C
NO.
H I L