5 I/O Refreshing
5 - 14
NX-series Digital I/O Unit User’s Manual (W521)
Offset between Sync0 and timing to refresh outputs
This time is automatically calculated by the Sysmac Studio.
(c) Interval of I/O refreshing
is not constant.
I/O refreshing synchronization
The longest DA conversion time
is within one cycle.
(d) Interval of Sync0 is constant.
(b) The Communication Coupler Unit refreshes
the output values at I/O refreshing.
Timing to refresh
outputs
Sync0
Sync0
1 2 3 4
Sync0
Constant
Constant
1 2 3 4
Output 1 Output 2
ON/OFF
response
time
DA conversion
time
1 2 3 4
1 2 3 4
Output 2
1 2 3 4
1 2 3 4
Output 1 Output 2
Digital Output Unit A
Digital Output Unit B
Analog Output Unit A
Analog Output Unit B
Not constant.
(d) Constant
Constant
Constant
Output 1
Wait time
Wait time
I/O refreshing
of the NX bus
(a) All output-synchronized
Units refresh their outputs
simultaneously.
Set outputs
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...