7 SSI Input Units
7 - 54
NX-series Position Interface Units User’s Manual (W524)
The following timing charts show the timing for both Free-Run refreshing and synchronous I/O refresh-
ing.
Free-Run Refreshing
*1. Bit changes are not always detected depending on the I/O refresh cycle and timing when you use Free-Run
refreshing.
*2. You can compare the values of the Encoder Present Position Refresh Count parameter to check if the data
has been refreshed when you use Free-Run refreshing.
Synchronous I/O Refreshing
Timing Charts
Data communications
SSI data communications
Data refresh bit
(in SSI Unit)
Communications
completed.
Free-Run refreshing performed.
Free-Run refreshing performed.
Encoder present
position refresh
counter (in SSI Unit)
Time
Time
Data refresh bit
(host Controller)
Encoder present
position refresh
counter (host
Controller)
(*1)
(*2)
(*2)
Data communications
SSI data communications
Data refresh bit
(in SSI Unit)
Communications
completed.
Synchronous refresh timing
Synchronous refresh timing
Synchronous refresh timing
Encoder present
position refresh
counter (in SSI Unit)
Time
Time
Data refresh bit
(host Controller)
Encoder present
position refresh
counter (host
Controller)
Содержание NX-EC0112
Страница 13: ...11 Manual Structure NX series Position Interface Units User s Manual W524...
Страница 34: ...Revision History 32 NX series Position Interface Units User s Manual W524...
Страница 36: ...Sections in this Manual 34 NX series Position Interface Units User s Manual W524...
Страница 70: ...2 Specifications and Application Procedures 2 14 NX series Position Interface Units User s Manual W524...
Страница 78: ...3 Part Names and Functions 3 8 NX series Position Interface Units User s Manual W524...
Страница 108: ...4 Installation and Wiring 4 30 NX series Position Interface Units User s Manual W524 Unit...
Страница 114: ...4 Installation and Wiring 4 36 NX series Position Interface Units User s Manual W524...
Страница 126: ...5 I O Refreshing Methods 5 12 NX series Position Interface Units User s Manual W524...
Страница 340: ...8 Pulse Output Units 8 76 NX series Position Interface Units User s Manual W524...
Страница 462: ...Appendices A 74 NX series Position Interface Units User s Manual W524...
Страница 463: ...I 1 I NX series Position Interface Units User s Manual W524 Index...
Страница 466: ...I 4 NX series Position Interface Units User s Manual W524 Index...