Offset between
Sync0 and timing to
read inputs
This time is automatically
calculated by the Sysmac
Studio.
(a) All input-synchronized
Units read their inputs
simultaneously.
I/O refreshing synchronization
The longest AD conversion time
is within one cycle.
Sync0 Sync0
1234
Input 1 Input 2
AD conversion
time for all Units.
Sync0
ConstantConstant
Constant Constant
(b) The Communications Coupler Unit
reads the latched data at I/O refreshing.
(c) Interval of I/O refreshing
is not constant.
1234
Input 1 Input 2
Digital Input
Unit A
Digital Input
Unit B
Analog Input
Unit A
Analog Input
Unit B
Not constant.
123
4
Input 1 Input 2
I/O refreshing
of the NX bus
(d) Interval of Sync0 is constant.
AD conversion starts
ON/OFF response
time
Input filter time
(d) Constant
(e) Set inputs
(e)(e)
ON/OFF response
time
Input filter time
AD conversion
time for all Units.
Input refreshing
Output refreshing