Reported by michelpons, 12 years ago.

I am using Aspen Hysys 7.3 CP2 and a specially developed PPM based on the thermo examples distributed by CO-LaN. The PPM is returning an empty list of constant properties (return on GetConstPropList call) and then Aspen Hysys calls GetCompoundConstant. This apparently raises an error.

COLTT 2.1 build June 5, 2012 says the followinh: PropertyPackage <Anonymous> : Call to GetCompoundConstant

GetCompoundConstant takes Input Arguments:

Error - compIds argument should be of type VT_ARRAY|VT_BOOL not VT_ARRAY|VT_BSTR

GetCompoundConstant returns:

Property Compounds ValueReturned

Warning - propvals argument is empty

PropertyPackage <Anonymous> : Return from GetCompoundConstant - Succeeded

I think the compIds argument should not be a boolean. So may be the message has to be reversed (I don't know what Aspen Hysys is using though). Installer for the PPM as well as instructions to install and use will be delivered through other communication means.

COLTT version 2.0 did not mention an error, i.e. no test was apparently made.

Reported by michelpons, 12 years ago.

I am investigating an issue that appeared initially when using an Aspen Properties Property Package out of version 7.3.2 from Aspen Plus in HTRI Xchanger Suite 6.0. I have transformed the scenario so that I am using COFE instead of XChanger. COFE crashes (with or without COLTT enabled on Aspen Properties Thermo System) when accessing the info on a compound. The document expliciting the scenario will be emailed separately. I am puzzled by the lack of info showing from the GetComponentConstant calls. For example:

PropertyPackage <Anonymous> : Call to GetComponentConstant requesting these constants :

iupacName

MaterialObject <Anonymous> : Call to get_ComponentIds

get_ComponentIds returns : ETHANOL WATER

MaterialObject <Anonymous> : Return from get_ComponentIds - Succeeded PropertyPackage <Anonymous> : GetComponentConstant returns

It looks like there is no return but I can't tell what is actually returned. At some point, when the property \"acentric factor\" is requested, COFE crashes. Can't tell why. I would appreciate if COLTT would show more. Don't know if it is possible.

Reported by michelpons, 12 years ago.

Using COLTT 2.1 Build June 5, 2012 I noticed in the attached log that many warning messages are written to the log file, within SetProp and GetProp method calls: Warning - compIds argument is empty

I wonder if this is relevant since the compIds argument may be UNDEFINED. Does it mean that the way UNDEFINED is set is wrong wrt the argument type? Is this warning significant with respect to the PMC or is it related to COLTT?