Omron NX-ID User Manual page 159

PLC Function
Module of the
CPU Unit
IO
ST0
DC time
NX Bus Function
Module of the
CPU Unit
Time Stamp of
Synchronous Output
Device variables
SyncOutTime
I/O refreshing
of the NX bus
Input refreshing Output refreshing
Input Unit that supports
input refreshing with
input changed time
Input value
InputChangedTime0
Input changed time
Device variables
InputBit
InputTimeStamp
Output Unit that supports
output refreshing with
specified time stamp
Specified time
Output set value
Output set value
Output status
Device variables
OutputTimeStamp
OutputBit
OutputStatus
Tcycle: Task period
IO: I/O refreshing
UPG: User program execution
MC: Motion control
Additional Information
With the NX_DOutTimeStamp instruction, if you set a previous DC time unintentionally, a Previ-
ous Time Specified event will not occur and you can refresh the output immediately.
Refer to the NJ/NX-series Instructions Reference Manual (Cat. No. W502) for details on the
NX_DOutTimeStamp instruction.
NX-series Digital I/O Unit User's Manual (W521)
Tcycle Tcycle
UPG MC IO UPG MC
InputChangedTime0
ST1
ST0 ST1
ST0
The Input Unit records the DC time
when input was changed.
InputChangedTime1
InputChangedTime0
Sets the output set value and specified time
and acquires the output status.(a)
Sets the SpecifiedTime1 and the output set value
in the user program.
Tcycle Tcycle
IO UPG MC IO UPG MC
ST1+Tcycle×2 (c)
ST2 ST3
Tcycle×2
Tcycle×3
ST2 ST3
ST1 ST2
InputChangedTime1
SpecifiedTime1
Refreshes output with the output set
value at the specified time.(b)
SpecifiedTime1
5 I/O Refreshing
Tcycle Tcycle
IO UPG MC IO UPG
InputChangedTime1
+Tcycle×3 (d)
SpecifiedTime1
ST4 ST5
ST4
ST3 ST4
ON/OFF
response time
5
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