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5 I/O Refreshing
5 - 10
NX-series Digital I/O Unit User’s Manual (W521)
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
1 2 3 4
Input 1
Input 2
AD conversion
time for all Units.
Sync0
Constant
Constant
Constant
Constant
(b) The Communications Coupler Unit
reads the latched data at I/O refreshing.
(c) Interval of I/O refreshing
is not constant.
1 2 3 4
Input 1
Input 2
Digital Input
Unit A
Digital Input
Unit B
Analog Input
Unit A
Analog Input
Unit B
Not constant.
1 2 3 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
Summary of Contents for NX-IA3117
Page 34: ...Sections in this Manual 32 NX series Digital I O Unit User s Manual W521...
Page 52: ...1 Features and System Configuration 1 18 NX series Digital I O Unit User s Manual W521...
Page 56: ...2 Specifications 2 4 NX series Digital I O Unit User s Manual W521...
Page 152: ...5 I O Refreshing 5 36 NX series Digital I O Unit User s Manual W521...
Page 204: ...8 Digital Mixed I O Units 8 8 NX series Digital I O Unit User s Manual W521...
Page 224: ...9 Troubleshooting 9 20 NX series Digital I O Unit User s Manual W521...
Page 230: ...10 Inspection and Maintenance 10 6 NX series Digital I O Unit User s Manual W521...
Page 337: ...I 1 I NX series Digital I O Unit User s Manual W521 Index...
Page 340: ...I 4 NX series Digital I O Unit User s Manual W521 Index...