Allen-Bradley LOGIX 5000 Reference Manual page 501

Function Block Attributes
RTSTime DINT
RTSTimeStamp DINT
Output Parameters
Output Parameter Data Type
DeltaT REAL
Status DINT
TimingModeInv (Status.27) BOOL
RTSMissed (Status.28) BOOL
RTSTimeInv (Status.29) BOOL
RTSTimeStampInv (Status.30) BOOL
DeltaTInv (Status.31) BOOL
Rockwell Automation Publication 1756-RM006K-EN-P - November 2018
Module update period for real time sampling timing. The
expected DeltaT update period is in milliseconds. The update
period is normally the value that was used to configure the
module's update time. If invalid, the instruction sets the
appropriate bit in Status and disables RTSMissed checking.
Valid = 1...32,767ms
Default = 1
Module time stamp value for real time sampling timing. The
time stamp value that corresponds to the last update of the input
signal. This value is used to calculate DeltaT. If invalid, the
instruction sets the appropriate bit in Status, disables execution
of the control algorithm, and disables RTSMissed checking.
Valid =0...32,767ms (wraps from 32767 to 0)
1 count = 1 millisecond
Default = 0
Description
Elapsed time between updates. This is the elapsed time in
seconds used by the control algorithm to calculate the process
output.
Periodic: DeltaT = task scan rate if task is Periodic task, DeltaT =
elapsed time since previous instruction execution if task is Event
or Continuous task
Oversample: DeltaT = OversampleDT
Real Time Sampling: DeltaT = (RTSTimeStampn -
RTSTimeStampn-1)
Status of the function block.
Invalid TimingMode value.
Only used in real time sampling mode. Set when ABS | DeltaT -
RTSTime | > 1 (.001 second).
Invalid RTSTime value.
Invalid RTSTimeStamp value.
Invalid DeltaT value.
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