[TRNSYS-users] About storage of values between timesteps

[Carlos José Felbol Acuña via TRNSYS-users]

Hi everyone,

I'm creating a new Type for TRNSYS 18 in TypeStudio, basically a
concentrating solar collector based in Linear Fresnel Collectors. I
finished the code with my mathematical model for the Type and it compiles,
but when I use the new Type in TRNSYS I get the following "error":

TRNSYS Message 463: The SetNumberStoredVariables subroutine was not called
to set the number of storage locations required before the
SetStaticArrayValues routine was called. Please check formulation of the
specified TYPE.

I use as reference for my code the one of the Type1288 provided in TESS
library, but as this code was done for TRNSYS 16 I don't have a clear
reference for the TRNSYS's functions for the storage of variables. I tried
using the Dynamic and Static statements to store a value but I still don't
understand how to solve this error.

In my code I use the statements for the storage of variables in this way:

--------- After convergence manipulations
      If(getIsEndOfTimestep()) Then
...
        Do i=1,Number_in_Series
  Do j=1,Number_of_Nodes_per_Collector
    Call
setStaticArrayValue(((i-1)*Number_of_Nodes_per_Collector+j),getStaticArrayValue(Number_in_Series*Number_of_Nodes_per_Collector+(i-1)*Number_of_Nodes_per_Collector+j))
EndDo
EndDo
...
Return
      EndIf
---------
--------- Very First Call of the Simulation Manipulations
If(getIsFirstCallofSimulation()) Then
...
N_Items=2*Number_in_Series*Number_of_Nodes_per_Collector
Call SetNumberStoredVariables(N_Items,N_Items)
! Number_in_Series and Number_of_Nodes_per_Collector are parameters of the
 model
...
  Return
      EndIf
-----------
----------- First Timestep Manipulations
If (getIsStartTime()) Then
...
    N_Items=2*Number_in_Series*Number_of_Nodes_per_Collector
Do i=1,Number_in_Series
  Do j=1,Number_of_Nodes_per_Collector
     Call
setStaticArrayValue((i-1)*Number_of_Nodes_per_Collector+j,Initial_Collector_Temperature)
 Call
setStaticArrayValue(Number_in_Series*Number_of_Nodes_per_Collector+(i-1)*Number_of_Nodes_per_Collector+j,Initial_Collector_Temperature)

       EndDo
EndDo
...
Return
      EndIf
-----------

​In advance, thank you so much for your help.

Best Regards,

Carlos Felbol A.​





-- 
*Carlos José Felbol Acuña* Ingeniero de Proyectos
*Grupo de Energía Solar*
*Pontificia Universidad Católica de Chile*
Departamento de Ingeniería Mecánica y Metalúrgica
Av. Vicuña Mackenna 4860, Macul
Santiago
Chile
[image: mobile]
 +56 9 9158 6309 <+56+9+9158+6309>
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 +56 2 2504 7997 <+56+2+2504+7997>
[image: email] <https://si.gnatu.re/#cjfelbol@uc.cl> cjfelbol at uc.cl
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