Mitsubishi Electric AJ71C24-S6 User Manual page 181

8.
COMMUNICATIONS USING DEDICATED PROTOCOLS
MELSEC-A
8.8.8 Testing (random write) the extension file register (ACPU common command)
lesignation Method
1
St. No. : Station numbel
Designation in protocol 1 is shown below.
Extension file register test
(random write) command
I
To designate the device range, the following condition must be met:
Character area C
I
1
5
number of device points
5
10
computer
TO write data to 3 points : R1050 in extension file register block number 5, R2121 in
block number
7,
and R3210 in block number 10 in station number "3".
(Message wait time is 0 msec)
Check sum is calculated within this range
.
iJ71C24
I
; ; ,
HIL
Indicates that:
The content to b e written to R1050 of block number 05 is 1234H
(4660 in decimal)
The content to b e written t o R2121 of block number 07 is 1A18H
(6683 in decimal)
The content to b e written to R3210 of block number 10 is 0506H
(1286 in decimal)
AJ71 C24
1 device point
uses
4 characters.
Therefore, a 1-word data is expressed
H I L
H I L
in 4 digits (hexadecimal).
A
;
Merrsge
waittime
I
Number
Of
device points
(2 characters
(hexadecimal))
H
1
L
I
L',
HlL
I
st.
NO.
I
I
PC
N O .
i I I I I I I I , /
Device number
I
Data(4
(7 characters) #characten)
I I I I I I I I I I
I
I I I I I ,
Device number
17 characters)
I I I I I I
I l l
oafs
(a
characters)
$ 1 1
I
Sum
",",' , ","
HIL