[TRNSYS-users] Problems with Type 980

[Toni Calabrese]

Dear Trnsys users,
I am having a problem with Type 980. We would like to implement an exit strategy "CtrlExitStrategy" in case a temperature in the thermal energy storage "Tsen3_Tes1" drops below the set temperature "myT_set_MixSh_Ref" for more than 24h. Below what I implemented.

Basically I give as input for Type 980 CtrlTTesSh and it should give me as output how many hours the control has been 1, right? Then with the last equation CtrlExitStrategy will be 1 if the output of the type has reached 24h. Is there something wrong?

Without this new block, the model works properly, but with this new block it tells me that there are errors in the number of parameters and outputs of this type 980 (see below). Can you help me?


EQUATIONS 1
CtrlTTesSh = LT(Tsen3_Tes1,myT_set_MixSh_Ref)


UNIT 2 TYPE 980               Type980
PARAMETERS 1
1                                    ! 1 Number of Signals to Watch
INPUTS 1
CtrlTTesSh                   ! [unconnected] Input Control Signal
*** INITIAL INPUT VALUES
0.
*------------------------------------------------------------------------------
EQUATIONS 2
CtrlTTesShDuration = [2,1]
CtrlExitStrategy = GT(CtrlTTesShDuration,24)



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________________________________
Toni Calabrese, MSc.
Wissenschaftlicher Projektleiter
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T +41 58 257 4827

SPF Institut für Solartechnik
OST - Ostschweizer Fachhochschule
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