RE: [EnergyPlus_Support] Re: Dynamic change of a schedule:compact with EMS

["Edward G. Lyon" <eglyon@xxxxxxx>]

I would guess that if your first value was 1 and after adjustment it is .5 then the next value input for your calculation is the assigned value of .5 and not your original value of 1.� This would result in a degenerating output.� Try either defining the original value you want as a constant in EMS, or if you prefer, put it in a separate schedule that you do not over write with your calculation value.



Ned Lyon, P.E. (MA, WV)
Staff Consultant

SIMPSON GUMPERTZ & HEGER
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From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of m.aldegheri@xxxxxxxxx
Sent: Monday, March 24, 2014 2:22 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Re: Dynamic change of a schedule:compact with EMS [1 Attachment]





Good evening,

unfortunately my problem is not jet solved. I wrote this code to read the original value of a schedule by a sensor and to change it using an actuator. The actuator should change the original value in the schedule multiplying it for a random calculated factor. Than I wish to report the value of the changed schedule.
In this example I tried to change the CLO and MET schedule but things continue to go wrong.
The schedules have always the value of 0 (or almost 0). I read also the .edd file to see what it's going on and it seems that the annichilation of the schedule values happens during Warmup & Sizing period.
Could anyone confirm this point?
How could I exclude the code working during this period?
Or if this is not the point, where is the mistake, and how can i fix it?

Thanks a lot,
Marco




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