Cory, That second error may go away once you fix the first. If it doesn't, look at the output file producing components in your simulation (Type52, Type456, Type65, etc.) and make sure that you have specified as many LABELS as there are inputs to the component. Labels are usually entered in the "special cards" tab of the proforma. Best, David On 1/16/2011 14:14, Cory Duggin wrote: I am having two issues when trying to get my simulation to run. First, it says there is a divide by zero in one of my equations. I have determined that a mass flow rate that is being used in the equation is not being set to a value. I checked the preceding blocks and they say the flow rate should be 100kg/hr. The previous block is a mixer piece and within the block it says the outlet mass flow rate is 100, but when I check the actual path connection value it says 0. Why would that mass flow rate value not be passed? -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley@tess-inc.com http://www.tess-inc.com http://www.trnsys.com |