Re: Simulation Timestep

[Michaël Kummert <kummert@xxxxxxxxxxxxx>]

Dear Jade,

> Is there a way for a component to 'know' what the
> simulation time step is during the first call to it in
> a time step? 
The simulation time step is stored in the "DELT" variable in the "SIM" 
common block. You can access that common block from any TRNSYS Type. To 
do this, you have to add the following lines in the declaration section:

      INTEGER IWARN
      REAL S,TIME0,TFINAL,DELT
      COMMON /SIM/ TIME0,TFINAL,DELT,IWARN

You can then use the "DELT" variable in your equations. You could also 
use TIME0 (the simulation start time) and TFINAL (the simulation stop 
time). The common block is always accessible (i.e. also during the first 
call of a time step).

Kind regards,

Michaël Kummert

--
_________________________________________________________

Michaël Kummert

Solar Energy Laboratory - University of Wisconsin-Madison
1303 Engr Res Bldg, 1500 Engineering Drive
Madison, WI 53706

Tel: +1 (608) 263-1589
Fax: +1 (608) 262-8464
E-mail: kummert@engr.wisc.edu

SEL Web Site: http://sel.me.wisc.edu
TRNSYS Web Site: http://sel.me.wisc.edu/trnsys