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The Timed Loop includes the nodes shown in the following illustration. By default, nodes of the Timed Loop do not display all of the available input and output terminals. You can resize nodes or right-click a node and use the shortcut menu to display node terminals.

(1) Input Node

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(2) Left Data Node

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(3) Right Data Node

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(4) Output Node

Input Node

Deadline	Specifies the time when the Timed Loop must complete the iteration. Deadline equals Period if you do not specify a value. The deadline value is relative to the start of the Timed Loop and is specified in units of the timing source.
Error	Propagates errors through the structure. The Timed Loop does not execute if Error receives an error condition.
Mode	Specifies how the Timed Loop handles late executions. There are five available modes—No change, Process missed periods maintaining original phase, Process missed periods ignoring original phase, Discard missed periods maintaining original phase, and Discard missed periods ignoring original phase.
Name	Specifies a name for the Timed Loop.
Offset	Specifies the length of time a Timed Loop waits to begin execution. The offset value is relative to the start of the Timed Loop and is specified in absolute units of the timing source.
Period	Specifies a period for the Timed Loop in the relative units of the timing source.
Priority	Specifies the priority for the execution of the Timed Loop. The priority of a timed structure specifies when the structure executes on the block diagram relative to other objects on the block diagram. The value for the Priority input must be a positive integer between 1 and 65,535.
Processor	Specifies the processor you want to handle execution. The default is -2, which means LabVIEW automatically assigns a processor. To manually assign a processor, enter a number between 0 and 255, where 0 represents the first available processor. If you enter a number that exceeds the number of available processors, you generate a run-time error and the timed structure does not execute.
Source Name	Specifies the name of the timing source to use for controlling the structure. The timing source must be created on the block diagram using the Create Timing Source VI or selected from the Configure Timed Loop dialog box.
Timeout	Specifies the maximum amount of time a Timed Loop can wait to begin execution. The timeout value is relative to the start of the Timed Loop or the end of the previous iteration and is specified in units of the frame timing source.

Left Data Node

Actual End [i-1]	Returns the actual end time for the previous iteration (i-1). The actual end value is relative to the start time of the Timed Loop and is specified in units of the timing source.
Actual Start [i]	Returns the actual start time of the current iteration (i). The actual start value is relative to the start time of the Timed Loop and is specified in units of the timing source.
Deadline	Returns the deadline value for the current iteration.
Error	Propagates errors through the structure.
Expected End [i-1]	Returns the expected end time for the previous iteration (i-1). The expected end value is relative to the start time of the Timed Loop and is specified in units of the timing source.
Expected Start [i]	Returns the expected start time of the current iteration (i). The expected start value is relative to the start time of the Timed Loop and is specified in units of the timing source.
Finished Late? [i-1]	Returns TRUE if the Timed Loop does not complete the previous iteration before the specified deadline.
Global End Time	Returns a time stamp for the end of the previous iteration in nanoseconds.
Global Start Time	Returns a time stamp for the start of the current frame in nanoseconds.
Iteration Duration	Returns a time stamp of the duration of the previous iteration. The iteration duration is relative to the start of the iteration and is specified in units of the timing source.
Mode	Returns the mode value for the current iteration.
Offset	Returns the offset value for the start of the current iteration.
Period	Returns the period value for the current iteration.
Priority	Returns the priority value for the current iteration.
Timeout	Returns the timeout value for the current iteration.
Wakeup Reason	Returns an enumerated type with the reason for the execution start of the current iteration. The possible values are 0 for Normal, 1 for Sequence Aborted, 3 for a timing source error, 4 for a structure error, and 5 for timeout.

Right Data Node

Deadline	Specifies the time when the Timed Loop must complete the next iteration. The deadline value is relative to the start of the next iteration and is specified in units of the timing source. The default is -1, which means unchanged.
Error	Propagates errors from the subdiagram out of the Timed Loop. If Error receives an error condition, the Timed Loop finishes executing the current iteration untimed, exits the loop, and returns the error condition on the Output node.
Mode	Specifies the Mode for the next iteration of the Timed Loop. There are five available modes—No change, Process missed periods maintaining original phase, Process missed periods ignoring original phase, Discard missed periods maintaining original phase, and Discard missed periods ignoring original phase.
Offset	Specifies the length of time the next iteration waits to begin execution. The offset value is relative to the start of the next iteration and in units of the timing source. The default is -1, which means unchanged. If you set an offset for the next iteration, you must set a new Mode value.
Period	Specifies a period for the next iteration of a Timed Loop in units as the timing source. The default is -1, which means unchanged.
Priority	Specifies the priority for the execution of the next iteration. The priority specifies when the next iteration executes on the block diagram relative to other objects on the block diagram. The value for the Priority input must be a positive integer between 1 and 65,535.
Processor	Specifies the processor you want to handle execution. The default is -2, which means LabVIEW automatically assigns a processor. To manually assign a processor, enter a number between 0 and 255, where 0 represents the first available processor. If you enter a number that exceeds the number of available processors, you generate a run-time error and the timed structure does not execute.
Timeout	Specifies the maximum amount of time the next iteration can wait to begin execution. The timeout value is relative to the end of the previous iteration and is specified in units of the frame timing source.

Output Node

Actual End [i-1]	Returns the actual end time for the previous iteration (i-1). The actual end value is relative to the start time of the Timed Loop and is specified in units of the timing source.
Error	Propagates errors received by the Timed Loop and returns errors from the subdiagram.
Expected End [i-1]	Returns the expected end time for the previous iteration (i-1). The expected end value is relative to the start time of the Timed Loop and is specified in units of the timing source.
Finished Late? [i-1]	Returns TRUE if the Timed Loop does not complete the previous iteration before the specified deadline.
Global End Time	Returns a time stamp for the end of the previous iteration in nanoseconds.
Iteration Duration	Returns a time stamp of the execution length of the previous iteration. The iteration duration is relative to the start of the iteration and is specified in units of the timing source.