Programming For Batch Refresh Type Remote 1/0 Units; Buffer Memory For Batch Refresh - Mitsubishi MELSEC-A AJ71PT3 User Manual

5. PROGRAMMING
5.3 Programming for Batch Refresh Type Remote 1/0 Units
/MELSEC;4
Write programs as explained below to transfer I/O data of batch
refresh type remote 110 units.
See Section 5.5 for a fail-safe circuit activated at occurrence of a
communication error.
5.3.1
Buffer memory for batch refresh
(1) Transmission data for batch refresh (addresses 10 to 41)
(a) Output to output remote 110 stations.
(b) Buffer memory assignment is as follows:
I
Master module
I
to
Station 2
Station 4
Station 6
b8 b7 to
Station 1
Station 3
tenon
5
Station 61
Station 63
bO
I
Remote I/O station
I
Y71 v61 Y5 Y41 Y3 Y2 Yll YOI Station 1
!Y7!VS!VSIV4IV3!V2!VlIVO!
Station
2
•
I
Master module
I
(c) The transmission data has 8 bit locations per remote 110
station as shown below.
1: ON
0: OFF
*.
n depends on the remote 110 station number.
bO to b7 for odd-numbered stations 1,3····· 63
b8 to b15 for even-numbered stations 2, 4············· 64
(2)
Receive data for batch refresh (addresses 110 to 141)
(a) Stores ONIOFF data input to the input remote 110 stations.
(b) Buffer memory assignment is as indicated below:
I
Remote 110 station
I
•
Station 2 .. Station 1
X7 XS
XSI X4
X3 X2! xi ]xo]
Station 4 Station 3
Station 6
tenon
5
xr
Xs
XSI X4
X3 X21 xli
xo]
Station 62 Station 61
eX7! XS! xsi x41 X31 X2! X, IXO!
Station 64 ... Station 63
•
I
I
rX7 X6 XSlX4
xa
t
xz
t
xi
xol
I
Address b15
110
111
112
'40
'4'
to b8 b7 to
bO
Station 1
Station 2
Station 63
Station 64
(c) Batch refresh receive data is made up of 8 bits per remote
110 station as shown below:
1: ON
0: OFF
*.
n depends on the remote 110 station number.
bO to b7 for odd-numbered stations 1, 3 ····· .. ·.... 63
b8 to b15 for even-numbered stations 2, 4 ·.. ·.. ·.. 64
5-3
18 (NAl66164-A