APM - Model File

The model information is contained in the APM file. This is a text file with variables, equations, objects, connections, and default values. There is one model file that can be used in all simulation modes.

Model Structure

The model is stored in a text file with an extension .apm. Comments characters include exclamation mark (!), percent sign (%), and pound sign (#). Comments can be placed at any location in the file and will be ignored during run time. Model indentation is encouraged to improve readability of the file, but is not required. In this case the model name example is chosen. In the following documentation, anything that begins with a capital letter is a system keyword while lower case words can be modified by the user.

  Compounds ! list of compounds by name, CAS number, or formula End Compounds Objects object.child As object.parent End Objects Connections variable1 = variable2 object1 = object2 End Connections Model example Parameters parameter = {default value}, > {lower}, < {upper} End Parameters Variables variable = {default value}, > {lower}, < {upper} End Variables Connections variable1 = variable2 object1 = object2 End Connections Intermediates ! intermediate variable declarations in explicit equation form End Intermediates Equations ! equation expressions in open-equation form End Equations End Model