
1.16/18/21-B, 16/18-C, LCD-MOUNTED TYPE 16i/18i/21i-A/B OPERATION B-62714EN/04
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DI/DO data allocation of the master function
DO data allocation (when DI/DO MAP MODE = 1)
A DO area is allocated for each slave.
[DO ADDRESS]
DO data from the master station to
slave station #1
↑
[DI/DO DATA SIZE]
↓
+[DI/DO DATA SIZE] ×1
DO data from the master station to
slave station #2
+[DI/DO DATA SIZE] ×2
DO data from the master station to
slave station #3
+[DI/DO DATA SIZE] ×3
DO data from the master station to
slave station #4
::
::
::
+[DI/DO DATA SIZE]×
([MAX SLAVE NO]-1)
DO data from the master station to
slave station #[MAX SLAVE NO]
Example:
When [MAX SLAVE NO] = 2, [DI/DO MAP MODE] = 1, [DO
ADDRESS] = R0100, and [DI/DO ADDRESS SIZE] = 10, DO
data is allocated as follows:
R0100
DO data from the master station to
slave station #1
R0110
DO data from the master station to
slave station #2
DO data allocation (when DI/DO MAP MODE = 2)
Common DO data is allocated for all slaves.
[DO ADDRESS] DO data from the master station to
slave stations #1 to slave station
#[MAX SLAVE NO]
↑
[DI/DO DATA SIZE]
↓