Equipment Cycle Time Data Points

Sepasoft MES Module Suite

Equipment Cycle Time Data Points

The Cycle Time data points provide a number of metrics that can be used to measure the amount of time required to produce one piece. It is often used to gain an understanding of variations in production. The Cycle Time calculations are based on the Cycle Count value provided to the system. Analysis provides Target, Normal, Overall, and Precise Cycle Time metrics. The Analysis Engine assumes valid data for this calculation. Invalid data, such as Unknown States, disrupt the calculation. Details of the calculations are described below.

Data Point

Data Type

Description

Units

Equipment/Cycle Time

Relative Cycle Count

String

Relative Cycle Count is the change in cycle count that occurred during an analysis row.

The scope of this is comparing the difference between the current and previous row.

N/A

Target Cycle Time

Float8

Also known as Takt time, it is how often a piece must be produced to meet customer demand. It is often used to pace a production line, and it is a calculated number in minutes. This is defined a 1/Standard Rate.

minutes

Total Cycle Count

String

Total Cycle Count is cumulative and represents the total change in cycle count since the beginning of the analysis period.

This value persists across rows. For example, you have had 10 cycles so far. You have another 5 cycles in the next period. The analysis row will read 15 cycles and continue to be a summation.

N/A

Equipment/Cycle Time/Normal

Normal Cycle Time calculations include Running and Unplanned Downtime states and ignore all other states like Starved, Blocked, Planned Downtime etc.

normalCycleTime = analysisRowTime - (disabledTime + blockedTime + starvedTime)

Average Normal Cycle Time

Float8

Average Normal cycle time in minutes.

averageNormalCycleTime = normalCycleTime / numberOfCompletedCycles

minutes

Max Normal Cycle Time

Float8

Max Normal cycle time in minutes.

Look at each of the cycles time periods, subtract any time the equipment was in a disabled, idle, planned downtime, blocked, or starved state, then select the largest value.

minutes

Min Normal Cycle Time

Float8

Min Normal cycle time in minutes.

Look at each of the cycles time periods, subtract any time the equipment was in a disabled, idle, planned downtime, blocked, or starved state, then select the smallest value.

minutes

Normal Cycle Time

Float8

Time spent cycling that includes Running and Unplanned Downtime states and ignores all other equipment states.

normalCycleTime = analysisRowTime - (disabledTime + blockedTime + starvedTime)

minutes

Equipment/Cycle Time/Overall

Overall Cycle Time calculations include all equipment states except Disabled.

Average Overall Cycle Time

Float8

Average Overall cycle time in minutes.

averageOverallCycleTime = overallCycleTime / numberOfCompletedCycles

minutes

Max Overall Cycle Time

Float8

Max Overall cycle time in minutes.

Look at each of the cycles time periods, subtract any time the equipment was in a disabled state, then select the largest value

minutes

Min Overall Cycle Time

Float8

Min Overall cycle time in minutes.

Look at each of the cycles time periods, subtract any time the equipment was in a disabled state, then select the smallest value

minutes

Overall Cycle Time

Float8

Time spent cycling that includes all equipment states except Disabled.

overallCycleTime = analysisRowTime - disabledTime

Important Things to Note:

Each Time Tick represents 1 minute.
The scope of each Analysis Row (delimited by Analysis Endpoints) is 10 minutes.
Each part takes 2 minutes of Production Time to make.
Minimum, Maximum, and Average Cycle Time calculations only look at the completed (whole) cycles within the analysis rows. Cycle times can span previous rows. Example: If an Analysis result set spans from 3:00PM to 5:00PM, but the first increment to the Cycle Count occurs at 3:05PM, then that initial 5 minutes is not included when calculating the Min, Max or Average data points for Cycles. Likewise, any incomplete cycles at the end of the date range will also not be included in the calculations.

Calculation Complexity Definitions
Complexity	Description
Low	Very simple to calculate all different cycle times. (Overall, Normal, and Precise the same)
Medium	A little more difficult to calculate different cycle times. (At least 2 types have different results.) May have cycles extending past the analysis scope.
High	The most difficult to calculate different cycle times. (All types have different results.) Has cycles extending past the analysis scope.

High Complexity

Cycle Time Length
Sample 1 (High Complexity)
Type	Time Calculation	Value
Overall Cycle Time	t_analysis	10 minutes
Normal Cycle Time	t_analysis - t₂	9 minutes
Precise Cycle Time	t_analysis - (t₂ + t₆)	7 minutes
Min Cycle Time
Type	Cycle Time Calculation	Min Cycle Time (mins)
Min Overall Cycle Time	C1_overall: t₀ = 2 mins C2_overall: t₁+t₂+t₃ = 3 mins C3_overall: t₄ = 2 mins	2 minutes
Min Normal Cycle Time	C1_normal: t₀ = 2 mins C2_normal: t₁+t₃ = 2 mins C3_normal: t₄ = 2 mins	2 minutes
Min Precise Cycle Time	C1_precise: t₀ = 2 mins C2_precise: t₁+t₃ = 2 mins C3_precise: t₄ = 2 mins	2 minutes
Max Cycle Time
Type	Cycle Time Calculation	Max Cycle Time (mins)
Max Overall Cycle Time	Same as Min Cycle Time	3 minutes
Max Normal Cycle Time	Same as Min Cycle Time	2 minutes
Max Precise Cycle Time	Same as Min Cycle Time	2 minutes
Average Cycle Time
Type	Avg Time Calculation	Avg Value
Average Overall Cycle Time	(C1_overall + C2_overall + C3_overall) / 3 cycles (2 mins + 3 mins +2 mins) / 3 cycles	2.33 minutes
Average Normal Cycle Time	(C1_normal + C2_normal + C3_normal) / 3 cycles (2 mins + 2 mins + 2 mins) / 3 cycles	2.00 minutes
Average Precise Cycle Time	(C1_precise + C2_precise + C3_precise) / 3 cycles (2 mins + 2 mins + 2 mins) / 3 cycles	2.00 minutes

Medium Complexity

Min Cycle Time
Sample 2 (Medium Complexity)
Type	Time Calculation	Value
Overall Cycle Time	t_analysis	10 minutes
Normal Cycle Time	t_analysis	10 minutes
Precise Cycle Time	t_analysis - t₉	6 minutes
Type	Cycle Time Calculation	Min Cycle Time (mins)
Min Overall Cycle Time	C4_overall: t₇+t₈+t₉+t₁₀ = 8 mins C5_overall: t₁₁ = 2 mins C6_overall: t₁₂ = 2 mins	2 minutes
Min Normal Cycle Time	C4_normal: t₇+t₈+t₉+t₁₀ = 8 mins C5_normal: t₁₁ = 2 mins C6_normal: t₁₂ = 2 mins	2 minutes
Min Precise Cycle Time	C4_precise: t₇+t₁₀ = 2 mins C5_precise: t₁₁ = 2 mins C6_precise: t₁₂ = 2 mins	2 minutes
Max Cycle Time
Type	Cycle Time Calculation	Max Cycle Time (mins)
Max Overall Cycle Time	Same as Min Cycle Time	8 minutes
Max Normal Cycle Time	Same as Min Cycle Time	8 minutes
Max Precise Cycle Time	Same as Min Cycle Time	2 minutes
Average Cycle Time
Type	Avg Time Calculation	Avg Value
Average Overall Cycle Time	(C4_overall + C5_overall + C6_overall) / 3 cycles (8 mins + 2 mins +2 mins) / 3 cycles	4.00 minutes
Average Normal Cycle Time	(C4_normal + C5_normal + C6_normal) / 3 cycles (8 mins + 2 mins + 2 mins) / 3 cycles	4.00 minutes
Average Precise Cycle Time	(C4_precise + C5_precise + C6_precise) / 3 cycles (2 mins + 2 mins + 2 mins) / 3 cycles	2.00 minutes

Sample 3 (Medium Complexity)

Sample 3 (Medium Complexity

Cycle Time Length
Type	Time Calculation	Value
Overall Cycle Time	t_analysis	10 minutes
Normal Cycle Time	t_analysis - t₂₀	9 minutes
Precise Cycle Time	t_analysis - t₂₀	9 minutes
Min Cycle Time
Type	Cycle Time Calculation	Min Cycle Time (mins)
Min Overall Cycle Time	C7_overall: t₁₄+t₁₅ = 2 mins C8_overall: t₁₆ = 2 mins C9_overall: t₁₇ = 2 mins C10_overall: t₁₈ = 2 mins C11_overall: t₁₉ = 2 mins	2 minutes
Min Normal Cycle Time	C7_normal: t₁₄+t₁₅ = 2 mins C8_normal: t₁₆ = 2 mins C9_normal: t₁₇ = 2 mins C10_normal: t₁₈ = 2 mins C11_normal: t₁₉ = 2 mins	2 minutes
Min Precise Cycle Time	C7_precise: t₁₄+t₁₅ = 2 mins C8_precise: t₁₆ = 2 mins C9_precise: t₁₇ = 2 mins C10_precise: t₁₈ = 2 mins C11_precise: t₁₉ = 2 mins	2 minutes
Max Cycle Time
Type	Cycle Time Calculation	Max Cycle Time (mins)
Max Overall Cycle Time	Same as Min Cycle Time	2 minutes
Max Normal Cycle Time	Same as Min Cycle Time	2 minutes
Max Precise Cycle Time	Same as Min Cycle Time	2 minutes
Average Cycle Time
Type	Avg Time Calculation	Avg Value
Average Overall Cycle Time	(C7_overall + C8_overall + C9_overall + C10_overall + C11_overall)/ 5 cycles (2 mins + 2 mins + 2 mins + 2 mins +2 mins) / 5 cycles	2.00 minutes
Average Normal Cycle Time	(C7_normal + C8_normal + C9_normal + C10_normal + C11_normal)/ 5 cycles (2 mins + 2 mins + 2 mins + 2 mins +2 mins) / 5 cycles	2.00 minutes
Average Precise Cycle Time	(C7_precise + C8_precise + C9_precise + C10_precise + C11_precise)/ 5 cycles (2 mins + 2 mins + 2 mins + 2 mins +2 mins) / 5 cycles	2.00 minutes

Sample 4 (Medium Complexity)

Cycle Time Length
Type	Time Calculation	Value
Overall Cycle Time	t_analysis	10 minutes
Normal Cycle Time	t_analysis - t₂₂	6 minutes
Precise Cycle Time	t_analysis - t₂₂	6 minutes
Min Cycle Time
Type	Cycle Time Calculation	Min Cycle Time (mins)
Min Overall Cycle Time	C12_overall: t₂₁+t₂₂+t₂₃ = 7 mins C13_overall: t₂₄ = 2 mins C14_overall: t₂₅ = 2 mins	2 minutes
Min Normal Cycle Time	C12_normal: t₂₃ = 2 mins C13_normal: t₂₄ = 2 mins C14_normal: t₂₅ = 2 mins	2 minutes
Min Precise Cycle Time	C12_precise: t₂₃ = 2 mins C13_precise: t₂₄ = 2 mins C14_precise: t₂₅ = 2 mins	2 minutes
Max Cycle Time
Type	Cycle Time Calculation	Min Cycle Time (mins)
Max Overall Cycle Time	Same as Min Cycle Time	7 minutes
Max Normal Cycle Time	Same as Min Cycle Time	2 minutes
Max Precise Cycle Time	Same as Min Cycle Time	2 minutes
Average Cycle Time
Type	Avg Time Calculation	Avg Value
Average Overall Cycle Time	(C12_overall + C13_overall + C14_overall)/ 3 cycles (7 mins + 2 mins + 2 mins) / 3 cycles	3.67 minutes
Average Normal Cycle Time	(C12_normal + C13_normal + C14_normal)/ 3 cycles (2 mins + 2 mins + 2 mins) / 3 cycles	2.00 minutes
Average Precise Cycle Time	(C12_precise + C13_precise + C14_precise)/ 3 cycles (2 mins + 2 mins + 2 mins) / 3 cycles	2.00 minutes

Sample 5 (Low Complexity)

Cycle Time Length
Type	Time Calculation	Value
Overall Cycle Time	t_analysis	10 minutes
Normal Cycle Time	t_analysis	10 minutes
Precise Cycle Time	t_analysis	10 minutes
Min Cycle Time
Type	Cycle Time Calculation	Min Cycle Time (mins)
Min Overall Cycle Time	C15_overall: t₂₆ = 2 mins C16_overall: t₂₇ = 2 mins C17_overall: t₂₈ = 2 mins C18_overall: t₂₉ = 2 mins C19_overall: t₃₀ = 2 mins	2 minutes
Min Normal Cycle Time	C15_normal: t₂₆ = 2 mins C16_normal: t₂₇ = 2 mins C17_normal: t₂₈ = 2 mins C18_normal: t₂₉ = 2 mins C19_normal: t₃₀ = 2 mins	2 minutes
Min Precise Cycle Time	C15_precise: t₂₆ = 2 mins C16_precise: t₂₇ = 2 mins C17_precise: t₂₈ = 2 mins C18_precise: t₂₉ = 2 mins C19_precise: t₃₀ = 2 mins	2 minutes
Max Cycle Time
Type	Cycle Time Calculation	Min Cycle Time (mins)
Max Overall Cycle Time	Same as Min Cycle Time	2 minutes
Max Normal Cycle Time	Same as Min Cycle Time	2 minutes
Max Precise Cycle Time	Same as Min Cycle Time	2 minutes
Average Cycle Time
Type	Avg Time Calculation	Avg Value
Average Overall Cycle Time	(C15_overall + C16_overall + C17_overall + C18_overall + C19_overall)/ 5 cycles (2 mins + 2 mins + 2 mins + 2 mins +2 mins) / 5 cycles	2.00 minutes
Average Normal Cycle Time	(C15_normal + C16_normal + C17_normal + C18_normal + C19_normal)/ 5 cycles (2 mins + 2 mins + 2 mins + 2 mins +2 mins) / 5 cycles	2.00 minutes
Average Precise Cycle Time	(C15_precise + C16_precise + C17_precise + C18_precise + C19_precise)/ 5 cycles (2 mins + 2 mins + 2 mins + 2 mins +2 mins) / 5 cycles

Sepasoft MES Module Suite

Equipment Cycle Time Data Points