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DELAYP(input,delay time:pipeline) 3rd order exponential DELAY with Pipeline |
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Returns a 3rd order exponential delay of the input and computes the in progress pipeline, conserving the input if the delay time changes. Equivalent to the equations:
DELAYP=LV3/DL
pipeline=LV3+LV2+LV1
LV3=INTEG(RT2-DELAYP,DL*IN)
RT2=LV2/DL
LV2=INTEG(RT1-RT2,LV3)
RT1=LV1/DL
LV1=INTEG(input-RT1,LV3)
DL=delay time/3
See also: SMOOTH, SMOOTH3, DELAY3
| Units: | DELAYP(units,time,units) --> units |
Input units match output and pipeline units. The units of delay time must match those of TIME STEP.
Example
| product completions = DELAYP(product starts, |
| production time:work in progress) |
(note there is no equation for work in progress in the model)
NOTE DELAYP is supported as a convenient shorthand, but is not recommended for widespread use. The following equations have the same effect, and are easier to understand:
product completions = DELAY3(product starts,production time)
| work in progress = INTEG(product starts - product completions, |
| product starts * production time) |
Sample model: DELAY 1 3 N P.mdl in FunctionExamples
