[TRNSYS-users] Equation : variable use / iteration

[Ben Heymer]

One solution to your problem might be to use Type93 for Input Value Recall from the standard component library, feeding a new input variable to your equation:
T_COOL_ON --> Type93 --> T_CTRL
T_COOL_ON = T_CTRL + PPD20 -PPDHI

Ben Heymer, PE
Senior Energy Engineer | Energy Center of Wisconsin | Madison.Chicago.Minneapolis
608.210.7168 | Mobile: 312.315.4783 | www.ecw.org<http://www.ecw.org/>

From: trnsys-users-bounces at cae.wisc.edu [mailto:trnsys-users-bounces at cae.wisc.edu] On Behalf Of Alex Rachid
Sent: Wednesday, October 23, 2013 10:17 AM
To: trnsys users
Subject: [TRNSYS-users] Equation : variable use / iteration

Dear All

I am writing an equation in TRNSYS:

1- For the next iteration I want to use the previous value of the same Variable

    example:
     T_COOL_ON = T_COOL_ON + PPD20 -PPDHI
      this is throwing an error.

2- How can I set the initial value of the variable (T_CCOL_ON in the previous example)?
     Should it be set in the "Simulation Cards"?

Regards & Thanks

Alex





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