Mitsubishi Electric MELSEC-A User Manual page 125

14. AJ71 UC24 MASTER STATION
MELSEC-A
(c) Writing ONIOFF data to the relevant AJ71 UC24 buffer transmission
data bits switches the corresponding AOJ2C25 outputs (Y) on or off.
e.g. if "1" is written to bit 0 of address AH in the condition (a),
or if
"1"
is written to bit 8 of address AH in the condition (b),
Y20 at the AOJ2C25 is switched on.
1
The number of I/O points of I10 modules (AOJ2-E56[
I[ 1,
E28[
]I 1,
E32[
1,
E24[
I)
connected to the AOJ2C25 is fixed to 32 input points and 24
output points per module regardless of the module type.
If a 28-point module is connected to the AOJ2C25, the transmission data
of the AJ71 UC24 which corresponds to 14 output points of the second
half is ignored. If an input module is connected to the AOJ2C25, the
transmission data of the AJ71UC24 which corresponds to 24 output
points is ignored because there is no corresponding output points.
Example: When the number of transmission data points is set at 40
points in the system shown below.
(110 module No. 01
1
Correspond to transmission data
points 1 to 12.
'
Transmission data of points 13 to
24 is ignored because there is no
(I10 module No. 1)
corresponding output points.
. ~.
Correspond to transmission data
X4F Y6F
points 25 to 40.