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Hi General guide: Set the PID integral time equal to
simulation time step (10-20 minutes is a good step) Set gain very small Set derivation equal 0 Then have a look on the result, you have
to play with gain (increase gradually) first to get good response then change
derivation to stabilise the response. That is not a rule but mostly does the
job. Regards Mehdi From:
trnsys-users-bounces@cae.wisc.edu [mailto:trnsys-users-bounces@cae.wisc.edu] On Behalf Of Devin Rohan I have a PID controller (type 23) controlling the operative temperature
of a room modeled in Type 56 through the an active layer floor heating system,
where I control the water supply temperature and have a constant mass flow
rate. I tried to base it of the floor heating example TRNSYS provides in
the feedback control example folder. When I run the simulation, I get an
error saying that the number of warnings allowed for a simulation has been
exceeded. How can I fix this? Here is how I have my controller
connected to the multizone building model: Equation Editor
PID
Type 56
Control Signal
---------> T_supply
Controlled Variable
<-------- TOPLW (long wave operative temperature) Thanks for any help -- |