[TRNSYS-users] Equation : variable use / iteration
Ben Heymer
BHeymer at ecw.org
Wed Oct 23 09:01:56 PDT 2013
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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