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Problem Statement: What does Compinfo.[ans, bio, din] file contain. | Solution: All Tables:
Component: The component type.
Subcomponent: The component sub-type. If there is no 'subcomponent' the component is followed by data.
Tables 1-6:
First Column: Nominal Diameter (mm)
Second Column: Valve Stem Diameter (mm)
Third Column: Valve Stem Length (mm)
Fourth Column: Valve Run Length (mm)
Fi... |
Problem Statement: What does OptiPlant Compclr.dat file contain? | Solution: First Row, UPSTREAM: Specifies the upstream component type and subtype.
Other Rows, DOWNSTREAM: Specifies the adjacent downstream component for the previously specified upstream component.
Column 2, X Nom Dia of Pipe: Will use a multiple of nominal diameter to determine the distance between components.
Column... |
Problem Statement: What Does Equipmentspacing_Units.csv contain? | Solution: Plot-Plan Layout Rules or Equipment Layout Rules enable you to check for the spacing between any objects modeled in the program for the confirmation against their project’s safety and maintenance standards. OptiPlant checks for the spacing between the equipment and structures placed in the plot plan as per th... |
Problem Statement: What does Flange.[ans, bio, jis, din] file contain? | Solution: First Row: Lists Flange Ratings.
First Column: Lists Nominal Diameter (mm).
Keywords: Flange.[ans, bio, jis, din]
References: None |
Problem Statement: What does the Branch_<spec>.dat file contain? | Solution: Column 1, Nom Dia of Header: This lists the nominal diameter of the header line in inches.
Column 2, Nom Dia of Branch: This lists the nominal diameter of the branch line in inches.
Column 3, Preferred Branch Code: This lists the branch code to be used by PDS to determine the type of connection for the sizes ... |
Problem Statement: What does FoundationData.csv file contain in Aspen OptiPlant 3D layout? | Solution: This file contains the below information:
Table 1: This table gives the information about different soil bearing capacities based on class of soil.
First column shows the Class of Soil
Second column shows the Soil bearing capacities in ksf.
Table 2: This table gives the information about foundation extension... |
Problem Statement: What does Mat_weig.ans file contain in Aspen OptiPlant 3D layout? | Solution: This file contains the material weight information for bare pipe, pipe filled with water, pipe with insulation and pipe filling water and insulation, as per ANSI standard.
The material weight from this file is read for calculation the pipe weights during modularization.
The material weight from this file is r... |
Problem Statement: In the cold properties utility, why is the Flash Point value different when changing from the Aspen Pennsky-Martens to Aspen Tag method? | Solution: Both the Aspen Pennsky-Martens and Aspen Tag methods calculate the flash point temperature using modified rigorous K-values and a closed flash algorithm. TheSolution algorithm for each is summarized below:
1. Aspen Pennsky-Martens and Aspen Tag methods calculate Flash Point via a Bubble Point flash.
2. To... |
Problem Statement: How to solve HTTP Error 500.19 - Internal Server Error in AUP? | Solution: Following error accessing Unified
Add two new logins in SSMS with “sysadmin” privileges.”
Navigate to the path below as administrator:
C:\Windows\System32\inetsrv\config
Make sure the highlighted section below has the “allow” and “deny” permissions set respectively.
Restart Aspen Unified Service (stop & st... |
Problem Statement: How to troubleshoot an MBO model that doesn't converge? | Solution: Check that all input properties required for derived property calculations have initial values in the Beginning Inventories table/dialog.
If the optimizer is not finding aSolution and reporting infeasibilities in property balances (PBAL) try to re-run the optimization using a different BML correlation (e.g. t... |
Problem Statement: How to compare settings of 2 PIMS models? | Solution: If you right-click Model Settings, then select Non-Default Settings on any PIMS model
You can compare this table between the models to check any model setting differences,
Keywords: Model settings, compare models, non-default settings
References: None |
Problem Statement: How to set up 'Buy it or pay it' logic in PIMS? For example:
I must buy at least 10 000 BPD of ANS
If I don’t I need to pay 25% more for each unit I don’t buy
Then,
If I buy 10 000 BPD, I’ll pay 10 000 * 1
If I buy 10 001 BPD, I’ll pay 10 001 * 1
If I buy 9 999 BPD, I’ll pay (9 999 * 1) + (1 * 1.25) | Solution: First, we want to save the value missing to reach the 1000 m3. So, me want to make the difference between the section that doesn’t pay a penalty and the one that does, hence we will create an ALTTAG. For reference I will add a penalty to the crude ANS of the Volume Sample if we buy less than 10.
Then we buy ... |
Problem Statement: Sometimes when trying to open the Control Objectives of any MV or CV in the ATcontrol page from an operator machine from the DCS, a similar pop-up message to the one below can appear:
“This operation has been cancelled due to restrictions in effect on this computer. Please contact your system adminis... | Solution: To gain access to the Control Objectives, there are two options:
1. Use the PCWS “Enforce single-window environment” option in the Preferences tab of PCWS.
This causes all popup windows for the PCWS web session to open within a floating frame within the browser window instead of opening popup windows.
2. Over... |
Problem Statement: What does DefaultEquipmentCategories.csv file contain? | Solution: Each equipment present in the library is assigned with some default category based on the type of equipment. You can change this category by selecting any of the categories present in the database. This default categories are read from the data file DefaultEquipmentCategories.csv present in the <Drive>:Progra... |
Problem Statement: Aspen Unified V14 post-installation configuration. | Solution: This video guide will walk you through the default configuration steps for the V14 Aspen Unified SQL databases using the Aspen Unified Configuration Manager and Microsoft SQL Server Management Studio.
For additional information or questions about the SQL server and Specific Account Requirements, please refer... |
Problem Statement: Which SQL Server do I need to install to run Aspen OnLine? | Solution: Aspen OnLine includes a service which performs some tasks. This includes accessing a database which is used to cache data retrieved from a historian. To use the Aspen Properties Enterprise Database with several Aspen Engineering products on a Windows Server operating system, an SQL server is required.
Versi... |
Problem Statement: Best practices to converge an adjust block. | Solution: The Adjust operation iteratively modifies the adjusted variable within the specified range until the calculated variable matches the target value within a specified tolerance. If you're having an issue with the range you've specified in an Adjust operation, it's usually either because the true value lies outs... |
Problem Statement: After using Retrieve Parameters from the Tools section of the Home ribbon or generating a Property report using the Property parameters' descriptions, equations and sources of data (PARAM) option on the Setup | Report Options | Property sheet, I do not see the expected parameter (for example, CPLDIP)... | Solution: The Property report shows only the current parameters used in the Property Methods selected in the simulation.
In this case, no property methods use a liquid reference state; therefore, CPLDIP, the liquid heat capacity model parameter, is not used in the enthalpy calculations and does not appear in the proper... |
Problem Statement: How is it possible to model liquid-liquid equilibrium for systems with electrolytes? Are there any tips for getting this to work? | Solution: Liquid-liquid (LLE) systems can be modelled with ElecNRTL and ENRTL-RK, but there are several important steps that must be taken.
In earlier versions only the Apparent approach was supported; however, now LLE works with both the True and Apparent component approach. It is also possible to model LLE with elect... |
Problem Statement: What is the Mass Density Distribution of Solids in the plot available for the Particle Size Distribution (PSD)? | Solution: The Mass Density Distribution Plot shows the mass fraction of one size interval relative to the width of the size interval. For each interval, the Mass Density Distribution is plotted on the Y axis; thus, the units for the Y axis on this plot are the inverse the X axis units. Mass density plots show the most... |
Problem Statement: In Column Analysis, how is the Interfacial area factor handled?
For example, when using the mass transfer correlation Brf-85 that uses the packing surface area as interfacial area, the ratio of interfacial surface area or specific interfacial surface area to packing surface area should be the same a... | Solution: In RadFrac blocks with Column Analysis, there is an additional parameter Interfacial bottom stage area factor on the Rate-based Setup | Sections sheet. The Interfacial area factor now applies to the top stage and the value of the factor is linearly interpolated between these values for stages between the top ... |
Problem Statement: A connection between IP.21 and OPC UA server involves trusting each others' certificates (read, write and unsol). The vendor usually provides the location of their certificates.
If the vendor doesn’t know where are these certificates located, please follow the next steps. | Solution: 1. On the IP.21 side, Run Notepad as administrator and open cimio_opcua_read.log4net.Config.xml that is located in C:\Program Files (x86)\AspenTech\CIM-IO\io\cio_opc_uai
2. Enable “Debugging logs”
3. Open CIMIO INTERFACE MANAGER and start the interface that is pointing to the target OPC UA Server.
4. You... |
Problem Statement: What is the equation Aspen is using for calculating the PSV rated capacity? | Solution: Rated flow is not expected to depend on mass flow. Mass flow will typically be the required flow for the particular scenario (and it's a user-specified value), whereas rated flow is the maximum that can flow through the valve based on the fluid, orifice area, and valve characteristics (it can be calculated o... |
Problem Statement: Why do I get “License checkout” error while launching eLearning from Aspen Plus? | Solution: You might be facing “License checkout” error while launching eLearning from Aspen Plus due to tokens unavailability. Please note that eLearning requires additional 5 tokens apart from the tokens consumed for launching Aspen Plus, therefore you need to open SLM à Load Server Details à Check if enough tokens ar... |
Problem Statement: How to resolve the error – “Output Error in CSetDoubleValue for field ShadowPrice in table PrUtilitySale” in Aspen PIMS V14? | Solution: The error – “Output Error in CSetDoubleValue for field ShadowPrice in table PrUtilitySale” is occurring in Aspen PIMS V14 due to the change in the columns in PrUtilitySale since previous versions of PIMS.
This change was performed to include the shadow price to be used in reporting.
Therefore, in order to el... |
Problem Statement: How to resolve the error: “-2146824584 – Unknown error 0x800A0E78” in PIMS DR? | Solution: The unexpected error “-2146824584 – Unknown error 0x800A0E78” is occurring while using PIMS DR due to an incorrect Model setting.
This can be resolved by going to Model Settings à General Model Settings à Output Database à Options à unchecking the “Use Classic Output Database Format” option:
Keywords: None
Re... |
Problem Statement: Why does the Adiabatic Gas and Isothermal Gas correlations are not available in steady state Pipe segment unit operation in Aspen HYSYS? | Solution: The methods above have all been developed for predicting two-phase pressure drops. Some methods were developed exclusively for flow in horizontal pipes, others were developed exclusively for flow in vertical pipes, and some can be used for either. Some of the methods define a flow regime map and can apply spe... |
Problem Statement: How to differentiate between EO and SM mode in Aspen HYSYS? | Solution: In Aspen HYSYS, there are two different ways of solving simulations: Sequential Modular (SM) which solves blocks in sequence and Equation-Oriented (EO), which solves the entire flowsheet simultaneously.
The EO solver can be applied in Upstream, Midstream and Downstream processes. The EO solver has the capabi... |
Problem Statement: What are the steps involved in Aspen Unified upgradation to V14? | Solution: The following are the steps involved in Aspen Unified upgradation to V14:
1. Check if the HW and SW pre-requisites for Aspen Unified V14 are available in the machine in which it is going to be upgraded:
Hardware Requirements – Aspen Unified V14
Server Type - Minimum Recommended Computer & processor: Intel... |
Problem Statement: To make modifications in the Aspen Properties Database Manager utility you must enter the database login name and password. What are the correct entries for the different versions of the database manager? | Solution: The default login name and password is set during the installation of Aspen Properties Enterprise Database (APED). The correct values are shown below for the various versions.
Version
Login Name
Password
2006
aped
aped
2006.5
aped065
Aprop100
V7.0, V7.1, V7.2, V7.3
apeduser
Aprop100
V7.3.2 and higher
apedus... |
Problem Statement: After performing upgrades, migrations, or new installations of the GDOT Web Server, users may encounter an error when attempting to save changes made to a diagram within the Web Viewer:
This error can occur if the GDOT Online Web Viewer lacks the necessary permissions to modify the Database associat... | Solution: To grant the necessary permissions to the GDOT Online Web Viewer, follow these steps:
Navigate to the following directory: C:\ProgramData\AspenTech\GDOT Online\Vxx.x\WebFrontEnd\DataFiles.
Right-click on the database file for which you want to configure permissions and select Properties.
In the Properties win... |
Problem Statement: AspenTech strongly recommends stopping Aspen InfoPlus.21 before rebooting the Aspen InfoPlus.21 server. This ensures that a current snapshot and history data are saved to disk, and that all applications are shutdown cleanly.
However, users sometimes reboot the Aspen InfoPlus.21 server without first s... | Solution: Microsoft allows you to create a local computer policy that activates a batch procedure that is activated before the server shuts down. For more information, please refer to Microsoft TechNet Article https://technet.microsoft.com/en-us/magazine/dd630947.
Attached to this knowledge base article is a file named... |
Problem Statement: How to to use external fortran subroutines on a PC without a fortran compiler? | Solution: You can use the ASPLINK command to create your own shared libraries (.DLL files) containing the object files needed for user models. By creating your own shared libraries, you can avoid the need for Aspen Plus to link a run-specific user model shared library for each run.
To create the shared library (.DLL f... |
Problem Statement: Aspen Plus has CO2 Capture examples for Piperazine (PZ) and 2-amino-2-methyl-1-propanol (AMP) individually.
Is there an example that includes both of these amine solvents? | Solution: A process model is developed for CO2 capture by using a second generation of amine solvent, the aqueous blend of 2-amino-2-methyl-1-propanol (AMP) and piperazine (PZ). This blend is being actively investigated and considered as a good candidate to support commercial deployment and drive down costs of post-com... |
Problem Statement: Which method is uses to calculate flash point temperature in Aspen HYSYS? | Solution: The standard method that Aspen HYSYS uses to calculate flash point in the Cold Properties Utility is API procedure 2B7.1. You could get more information by that literature.
The same method is used in stream properties (from correlation manager in Refsys) to estimate the flash point. However, the results of th... |
Problem Statement: How to adjust the enthalpy reference in Aspen HYSYS? | Solution: The enthalpy reference state used in HYSYS is the heat of formation of an ideal gas at 25 C.The absolute enthalpy values generated by HYSYS can be converted to a different enthalpy basis.
For example, to convert HYSYS enthalpy values to an enthalpy basis of saturated liquid at 0 C, the following three steps ... |
Problem Statement: How to find the “Ideal” equation of state in Aspen HYSYS? | Solution: Ideal equation of state is not a fluid package available in the Aspen HYSYS library.
You can find Ideal property package by selecting Aspen Properties as component list and selecting Aspen Properties property package, filter as COMMON.
Note that you will need to select your component list from Aspen Properti... |
Problem Statement: Which thermodynamic package is best suited here to predict any NOx formation or ammonia combustion in Aspen HYSYS? | Solution: For the given conditions of pressure range (100 kPa ~ 20000 kPa) and components (H2, N2, NH3), I would recommend using the Peng-Robinson (PR) fluid package in HYSYS. The Peng-Robinson equation of state is a widely used model that can accurately represent the behavior of a wide range of hydrocarbon and non-hyd... |
Problem Statement: How to resolve crashing issue on making any changes to file simulation case if property package is selected as acid gas” in Aspen HYSYS? | Solution: In order to get rid of the crashing issue and its related error message Failure Generating Aspen Properties Problem Definition:
You need to install Aspen Plus in order to use Acid Gas fluid package in HYSYS. The error is coming from issues in the installation. Acid Gas fluid package uses Aspen Properties dat... |
Problem Statement: How to get rid of the following error message Error while executing Calculator block. Error starting or running excel in Aspen Plus? | Solution: In order to get rid of the following error message:
You will need to perform a quick repair on Office. Go to (Control Panel | Repair | Apps | Microsoft Apps for Enterprise | Modify | Quick Repair).
Keywords: Aspen Plus, Calculator Block, Excel
References: None |
Problem Statement: This article described where are stored the DMC3 Applications Automatic snapshot, that the server store. | Solution: The RTE service has the capability to take and store automatically snapshots of the deployed DMC3 applications. Typically, the snapshot intervals and History retention can be managed from the Configure Online Application.
Nevertheless, due to the usage of the RTE service is recommended not to change the defa... |
Problem Statement: This article described the different configuration and connection option that can be used in the interaction between DMC3 Builder and APC Online Server. | Solution: Typically, on the installation of an APC Online Server will consist of the Online Components which is basically all the services and files that allow the DMC3/DMC plus controllers to run and perform all controller calculations (typically this will be the ACO components and the RTE components) and the bundle o... |
Problem Statement: It is possible to change the History Plot option on the Production Control Web Server going to Preferences and checking the Web.21 HPT box.
However, this only applies for the user that is currently using the PCWS, the procedure below will make the Web.21 HPT the default option for all users without ... | Solution: NOTE THE FOLLOWING:
This procedure is only for V12.1 and later versions.
In V14 or higher the default browser is set to Web.21
To solve this problem, first open a file explorer and navigate to folder
C:\inetpub\wwwroot\AspenTech\ACOView.
In that folder, modify the following two files, using a text editor (N... |
Problem Statement: In V14.0.2, Aspen Process Pulse introduced a new feature that would allow for the disabling of configuration start when a Kaiser Raman Analyser was in an error or warning state. Given the number of reasons that can cause these states, this may have a negative impact on any customer using a Kaiser ins... | Solution: , please contact AspenTech support at esupport@aspentech.com
Fixed in Version
Fixed in V14.2
Keywords: Process Pulse
Kaiser Raman Analyser
Instrument Status
Error State
References: None |
Problem Statement: An event.dat file is usually created when the history archiver process, h21archive.exe, is either stopped or it dies due to history system problems. However, when the Aspen InfoPlus.21 (IP.21) database is restarted and the h21archive.exe process resumes its activity, the event.dat file should unbuffe... | Solution: 000079281 (formerly 103995) to find out how to conclusively determine if the event.dat file is unbuffering.)
Based on the above scenario, the following question might arise: Is it possible to restore the event.dat file if it has been renamed or deleted?
Solution
NOTE: ThisSolution is based on the assumption... |
Problem Statement: Is there another way to see the Control Objectives of a variable apart from checking them on the PCWS Operations tab? | Solution: We can use an SQL query to call back the “AWTagMessage” data, which contains the Control Objective information from a collecting controller in Aspen Watch.
Here’s a sample query you can modify according to your own controller and variable names:
WRITE '';
WRITE 'Time: '||CURRENT_TIMESTAMP;
WRITE '';
select ... |
Problem Statement: This video demonstrates how to enable debug logging in Aspen Process Data Administrator. | Solution:
Keywords: None
References: None |
Problem Statement: On Jun 8, 2021, Microsoft released KB004442 in response to a vulnerability found in DCOM communications (CVE-2021-26414). In the KB, Microsoft announced a plan to harden DCOM communications with several Windows security updates. When these Microsoft security patches are applied, DCOM settings will ... | Solution: If you are using any of the products listed above here that are affected by the Microsoft change, then you should do the following:
Do not manually enable the hardening changes until the corresponding AspenTech patch(es) are applied.
If the hardening changes have been manually enabled on your system, then di... |
Problem Statement: Is it possible to access column hydraulic results in Aspen Online (AOL)? | Solution: Most numerical fields visible in the Aspen Plus or Aspen Hysys User Interface can be accessed in AOL. Aspen Simulation Workbook (ASW) should be used to test the connections.
If you can link fields to ASW you can link them in AOL.
Flooding factor and other net metrics are exposed; but, the vapor/liquid bound... |
Problem Statement: The AeBRSClientConfigure.exe tool is used on Client machines that will be connecting to the Aspen Production Execution Manager server us the MOC (Manufacturing Operations & Control) application. | Solution: The AeBRSClientConfigure.exe tool will update the AeBRS.CMD file which is needed to run the MOC application. This tool will connect to the server hosting the Aspen Production Execution manager and use the configuration settings of the server to set the client machine.
Note: This Tool will update the AeBRS... |
Problem Statement: What could cause Error 1053: The service did not respond to the start or control request in a timely fashion when restarting Apache Tomcat service? | Solution: This error could be caused by that the Tomcat service shutdown port 8005 being used by other applications.
We could check the catalina.log on C:\Program Files\Common Files\AspenTech Shared\Tomcat9.0.27\logs. If we saw an entry SEVERE [main] org.apache.catalina.core.StanardServer.await Failed to create server... |
Problem Statement: How can I model the equilibrium reaction C (solid) + CO2 <==> 2 CO (Boudouart reaction)? | Solution: It is possible to use a RGIBBS block to model this reaction; however, you need to specify the component types carefully.
First, on the Components | Specifications form, we need to select the component type Solid for C. This means that solid property models will be used to calculate carbon properties. In addit... |
Problem Statement: This Knowledge Base article answers the following question: How do I configure Aspen Manufacturing Master Data Manager to use Dynamic Data? | Solution: Aspen Manufacturing Master Data Manager (mMDM) is primarily designed to manage data that changes infrequently for an enterprise, which is often referred to as master data, or reference data. But another goal of mMDM is to provide a single source for all information that may be required by subordinate Aspen ap... |
Problem Statement: aspenONE Process Explorer (A1PE) has some advanced features that cause additional license consumption when they are used. What are these Analytics features that take advantage of the SLM_RN_PME_ASPENONEALYT license key? | Solution: The Analytics features of A1PE include the following:
--Analytics plots (SPC) including Frequency, OEE, Ad hoc Individuals, Ad hoc EWMA, XBAR, Range, Standard Deviation, and CUSUM
Note: If an Analytics plot is part of a layout/dashboard that will also be considered analytics usage
--Batch plots incl... |
Problem Statement: The archive information is not stored within a record in the InfoPlus.21 database but rather in shared memory. When the database is stopped, the archive parameters are persisted in the config.dat file. The config.dat file contains the general configuration information for the history system, such as ... | Solution: The InfoPlus.21 database can be started without a config.dat file, but if so the database is started with the default repository (TSK_DHIS) which will have three file sets. In this case, additional reposistories and files sets must be recreated. When the database is shutdown, a new config.dat file is created ... |
Problem Statement: Is it possible to call the library property procedures within my own procedures? How to call GPI subroutines in my procedures?
For example, I would like to call the subroutine that implements pDens_mol_liq within my own user procedure. How can this be done? | Solution: The physical property procedures (e.g. pDens_mol_liq) of Aspen Custom Modeler (ACM) Modeler library is implemented as a fortran subroutine. We call this and other subroutines of the same class the GPI (generalized properties interface). Those subroutines are documented in ACM on-line help. These routines are ... |
Problem Statement: This article described what are the file types that can be imported into IQ Model | Solution: IQModel can import different types of text-based files, including txt (tab delimitated and csv), clc files and vec files.
Nevertheless, in the case of the of the text files ideally, we have to make sure they are tab delimitated and make sure no special characters or punctuation signs exist, otherwise this ca... |
Problem Statement: When the chemical reaction rate is significantly faster than the mass transfer through a stationary liquid or vapor film, we have a mass transfer controlled system. In this case, because of the very fast chemical reaction rate, we should not consider a linear concentration profile between the bulk an... | Solution: The purpose of film discretization is to deal with very fast reactions in the film and therefore it is only turned on for rate-based stages with reaction.
You need to increase the diagnostic level to 5 or more before running the simulation in the RadFrac block, Specifications, Block Options, Diagnostics:
We... |
Problem Statement: Does AspenTech support sharing the License Manager with other 3rd party application licenses?
Scenario
When trying to install AspenTech License on the same server as another 3rd party application license. | Solution: AspenTech does not support sharing the License Manager with other 3rd party application licenses.
As AspenTech's best practice, when having an Aspen license and another 3rd party application license, you should have them installed on separate license servers.
We do not recommend having two different licens... |
Problem Statement: This article will describe some settings that need to be checked to enable the IQ history data collection on the AspenWatch Database | Solution: IMPORTANT NOTES:
IQ Watch is only available from V11. Previous version do not support this features
The IQ Watch Collection requires additional Tokens and License Key. During the deployment this is checked and if the License is not available IQ will failed to deploy.
This attached PDF File will show a Step by... |
Problem Statement: Can we use .vue file(form sp3d) or 'nwd'file Aspen OptiPlant 3D Layout? | Solution: No, Aspen OptiPlant does not read .vue file(form sp3d) or 'nwd'file files directly.
However, both files can be exported to DXF from SP3D or Navis work, and can be read in OptiPlant.
Keywords: SP3D, OptiPlant, files, format
References: None |
Problem Statement: How to get rid of the following error message Utility Hydrate Formation is not available with the property package being used in Aspen HYSYS? | Solution: In order to get rid of the following error message:
You will need to use Peng Robinson or SRK fluid packages from the HYSYS databank as the Hydrate utility only works with PR & SRK.
Keywords: Aspen HYSYS, Error, Hydrate Utility
References: None |
Problem Statement: How to get rid of the following error message STREAM INITIAL FLASH FAILED. SEE HISTORY FILE FOR MORE INFORMATION in Aspen Plus? | Solution: In order to get rid of the following error message STREAM INITIAL FLASH FAILED. SEE HISTORY FILE FOR MORE INFORMATION, you will need open the inlet stream, and change Flash Options to Liquid Only and make sure to add H2O as solvent, then re-run the simulation.
Keywords: Aspen Plus, Error, FLASH FAILED
Referen... |
Problem Statement: What is the AspenTech System Name and How to Find it | Solution: A System Name is a unique identifier for each license. This identifier helps both customers and AspenTech keep track of the licenses being issued. This knowledge base article describes how to locate the System Name in your license file which you might require when submitting the license request or media upgra... |
Problem Statement: Is there a way to tell when Aspen InfoPlus.21 (IP.21) was last started? | Solution: Yes! Open the Aspen InfoPlus.21 Administrator and navigate to the SAVETaskDef definition and look for the child record called TSK_SAVE (or simply search for TSK_SAVE directly).
The fixed area of TSK_SAVE has the fields
LAST_LOAD_TIME
and
LAST_SAVE_TIME
These fields provide th... |
Problem Statement: MB Package Files | Solution: Before proceeding, first please ensure you install Emergency Patch 12 (or later) for Aspen HYSYS V14 via the following link:
https://esupport.aspentech.com/apex/S_SoftwareDeliveryDetail?id=a0eDp000000vVEpIAM
Emergency Patch 12 (EP12) is particularly focused on molecule-based models. Specifically, it addresse... |
Problem Statement: When attempting to log into Aspen Cloud Connect with Windows Authentication enabled, the following error messages in screenshots below may be encountered.
Or | Solution: This document explains what to do when you failed to login to Aspen Cloud Connect when Windows Authentication is enabled. We can use Windows tool - LDP.exe to check communication to the LDAP Server with specific credentials. In a typical server installation, the windows tool - LDP.exe tool may not have been i... |
Problem Statement: Can I open higher version of an Aspen Plus backup (.bkp) file from a lower version? For example, how can I open a file from V14 in V12.1? | Solution: There is a trick that can be used to open files in older versions. This feature is not supported, and it does not work for some files. New features will not supported. It is up to the user to check the file.
Files can sometimes be opened after saving file by downgrading the version number in a text editor suc... |
Problem Statement: When using RGibbs with a restricted equilibrium, how many reactions are needed? | Solution: If the Calculate Options in RGibbs is set to Restrict chemical equilibrium, RGibbs will restrict chemical equilibrium either for the entire system or specified equations using a specified temperature approach to equilibrium or reaction extents. If you have RGibbs consider only a specific set of reactions, you... |
Problem Statement: This knowledge base article illustrates how to uninstall any AspenTech software in V14 | Solution: If you need to uninstall a software of AspenTech, you can use the AspenOne Manager to do so.
Here is a step-by-step guide on how to use the AspenOne Manager in version 14.
Step 1: Open the AspenOne Manager
To open the AspenOne Manager, navigate to the Start Menu and search for AspenOne Manager or you can fin... |
Problem Statement: Which folders should be excluded from virus scanning on a machine running Aspen Advanced Process Control (APC) Software Suite? | Solution: The following folders and directories may be excluded from virus and malware scanning software on any machine running Aspen APC software. By excluding certain directories and files, you can avoid occurrences of false positive identifications of alleged malware that may occur during normal operation of AspenTe... |
Problem Statement: When trying to load an Inferential Qualities application, APC Manage or PCWS throws an error “IQP: Error opening IQF file”. | Solution: Here is a screenshot of the error described:
What this error means is that when searching for the .iqf configuration file, the Inferential Qualities service is not able to find it on the expected location. There are a few basic requirements for the IQ service to be able to find the file:
On the APC Online se... |
Problem Statement: When trying to install the component required to view ActiveX history plots on the APC Web Interface, Windows blocks the required .cab file, stopping users from accessing the ActiveX plots. | Solution: Before theSolution is provided, a few caveats to understand the scope of thisSolution
Internet Explorer is no longer supported (as of V14).
It is still possible to select ActiveX under the PCWS preferences as the default history plot tool.
ActiveX only works on Internet Explorer.
Therefore, this workaround is... |
Problem Statement: Aspen Plus may have problems converging tear streams when using the True components approach. | Solution: Numerical methods that use acceleration or dampening (Newton, Broyden, and Wegstein) may accelerate only one ion of a salt, resulting in a charge imbalance. Sometimes the flowsheet may recover from this problem, but most often the unit operation blocks will fail to converge once their feed streams are out of ... |
Problem Statement: This knowledge base article explains how to view the full contents of the config.dat file. | Solution: Config.dat is a file containing repository parameters including file set paths, file set sizes, and other history parameter settings. This file is updated by TSK_H21T when the database is shut down normally. The historian parameters are reloaded into a shared memory space during database startup.
Opening the ... |
Problem Statement: Some users are looking for guidance on how to calculate the rate of change (ROC) of a variable over a specified time interval. They want to store and update previous measurement values and create a user-defined variable to track the calculated rate of change. This article provides instructions on how... | Solution: Step 1: Create User Entries for Previous Measurements
Open the Aspen DMC3 interface and navigate to the appropriate control module or block where the rate of change calculation needs to be implemented.
Create user entries for each of the previous measurement values that need to be stored. The number of user... |
Problem Statement: You've set up your InfoPlus.21 server endpoint in Cloud Connect, but when you go to Manage Server Tags, not all of your tags show up in the tag list. | Solution: If your tags belong to a custom definition or a definition other than IP_AnalogDef, IP_DiscreteDef, or IP_TextDef, you'll need to make a few changes in InfoPlus.21 for Cloud Connect to be able to view and read your tags. The steps below show you how to do this using PMCAnalogDef and PMCDiscreteDef records.
1... |
Problem Statement: Fidelis Models are not Generated by Aspen Mtell Alert Manager
Fidelis uses a SQL database engine (called SQL LocalDB) and it runs as a process owned by the current user (meaning each user runs their own instance of LocalDB). Therefore, it is difficult to have shared LocalDB instance between different... | Solution: To solve this issue, create your own LocalDB instance following next steps:
On the machine with Fidelis and Mtell Alert Manager installed, open Command Prompt and stop the Fidelis V14 database instance executing next command:
sqllocaldb stop AFRInstace39
Delete the instance using next command:
sqllocaldb dele... |
Problem Statement: Why replication tags are not created in Subscriber? | Solution: Follow problems may cause the issue that replication tags are not created in Subscriber IP.21 database:
The connection is not blocked in firewall
The IP_Host_Name of the RepPublisherDef tag in Subscriber IP.21 database is not match the host name of Publisher
The IP_Host_Name of the RepSubscriberDef tag in Pub... |
Problem Statement: On the PCWS, user can download an ACO CCF Snapshot for historical values through Aspen Watch Inspector tool to be used in offline simulation. How can this be accomplished for DMC3 RTE applications? | Solution: The currently released versions do not have an exact same function as saving a CCF Snapshot from Inspector to create a *.DMC3application file. There are some challenges in implementing this feature at this time but there is an enhancement request in place (APC-I-1420), and it is in the long-term road map.
I... |
Problem Statement: This article described the meaning of the “DMCplus Use Only message that appears on DMCplus Build when the External Target Ranks are set up. | Solution: This message will appear only when External Targets are configured on a CCF Application (DMCplus Build). By going to the rank list of the CCF file you will see a message for all MV and CV external Targets Ranks indicating that the rank is “DMCplus use only”. The message will appear either you use and mdl file... |
Problem Statement: When implementing Aspen Manufacturing and Execution System (MES) | Solution: customers may install a firewall between the various Aspen applications.
Firewall systems help prevent unauthorized access to computer resources. However, if a firewall is turned on but not correctly configured, it may block some ports, which may cause applications that rely on those ports for communication t... |
Problem Statement: How to Install a Standalone License Manually | Solution: NOTE: Please attempt to use the License File Installer before trying to install the license file manually. The License Installer will install the license seamlessly and will let you know if there are any issues with your file.
Keywords: slm
dongle-free
dongleless
dongle
standalone
dongle free
dongle less
conf... |
Problem Statement: How to install a network license file manually | Solution: NOTE: Please attempt to use the License File Installer before trying to install the license file manually. The License Installer will install the license seamlessly and will let you know if there are any issues with your file.
Keywords: installation, network, license
References: the Software License Manager (... |
Problem Statement: This Knowledge Base article provides possible steps to resolve the issue of QP internal error when simulating DMC3 application which causes the controller to switch off. This error message is generic to indicate that the control engine failed to execute a | Solution: to the control problem.
Solution
One common cause for this issue is near-collinearity or high RGA problems. Check for any collinearity issues in the controller and try to reduce max RGA below 10.
If that does not work, check the settings for the called Target Algorithm Type (EPSMVPMX) that is used to conf... |
Problem Statement: You cannot see your folder structure under your IP.21 server node in Tag Browser. You have already tried these | Solution: s: Why does the Aspen Tag Browser not show any folders while the description field is simultaneously grayed out? https://esupport.aspentech.com/S_Article?id=000068816 and Aspen Tag Browser will not display folders https://esupport.aspentech.com/S_Article?id=000096201 , but you still cannot see the folders dis... |
Problem Statement: What should I do if I upgrade Microsoft Office from 32-bit to 64-bit and the Aspen Report Writer stops working? | Solution: It is always recommended to install or upgrade Microsoft Office before AspenTech products installation. When you install or upgrade Microsoft Office from 32-bit to 64-bit applications and Aspen Report Writer has already been installed in the machine then it will lose connection for its Excel Library Path i.e.... |
Problem Statement: I want to make a mixture of citric acid and water. Citric acid doesn't have any reactions listed. The web says that a 1 molal mixture should have a pH of about 3.2 how do I get this to work? | Solution: The electrolyte wizard does not have the citric acid anions; however, it is possible to create them and add the equilibrium reactions.
The method is similar to this knowledge document: An example on how to enter a non-databank ion and a non-databank volatile electrolyte.
The attached file can be opened in V1... |
Problem Statement: GDOT can present different | Solution: Status, please find a quick description on the table below:
However, is not mentioned what could aSolution Status 4 could mean. ThisSolution frames a description of what theSolution Status 4 stand for.
Solution
ASolutionStatus of 4 in GDOT usually means Skipped which means that the execution cycle skipped. T... |
Problem Statement: What is the ECCN number (Export Control Compliance Number) for AspenTech's Software Products? | Solution: EAR99 is the ECCN code for all of AspenTech's software products.
Keywords: ECCN, export, control, engineering
References: None |
Problem Statement: Which are the correct units to correctly obtain the value of RVP in Aspen HYSYS | Solution: The Reid Vapor Pressure (RVP) is determined using ASTM Standard D323.
According to this standard, RVP is measured using a pressure gauge that reports a value of zero when open to the atmosphere and indicates zero pressure when attached to the ambient air filled chamber of the device.
The RVP is measured dir... |
Problem Statement: This | Solution: frames how to extract historical information from the AspenWatch Database (IP21) from any current DMCplus application that is currently using.
Solution
There are two basic ways to extract information from AW, the first one involves using the Process Data Excel add-in. This Add-in allow us to extract informati... |
Problem Statement: This | Solution: frames the problem of a repeated prompt for logon credentials when HTP plots are enable and history Plots are requested. The plot would appear showing no data and the windows prompt for logon would appear and will not access even if the right credentials are introduced.
Solution
To fix this is necessary to ch... |
Problem Statement: This | Solution: explains how the CV and MV variables can be edited on a DMC3 Model
Solution
To modify the Variable son DMC3 model you need to follow the next steps:
1.- If this is your current project It is highly advisable to create a copy of the current Project before start. Then Open the work project and go to the Master ... |
Problem Statement: This | Solution: Frames on the how DMC3 Builder determine how many correlation coefficients to plot after running a case.
Solution
The MV Cross-Correlation plot reflects the correlation between two MVs over a time horizon window. A maximum value (between 0-1.0) at time t=0 shows the strongest correlation between the two MVs.
... |
Problem Statement: When using Excel Process Data COM Add-In, the formula result shows #NAME? instead of the expected results in both the Formula location and the Output location, as shown below: | Solution: (Updated April 2024 with more details)
#NAME? means the formula cannot be found. This can often be resolved by registering the ProcessData library file and adding a missing add-in.
1. Exit all open copies of Excel.
2. Open a Windows OS Command Prompt (formerly called the DOS prompt) using the 'Run as Adm... |
Problem Statement: If required TCP ports connections are not enabled through a firewall or the computer directory configuration is not correct, the communication between AspenTech servers or AspenTech server and clients will fail. | Solution: One of the simplest methods to test if a specific TCP port is open through a firewall between two computers is to use the Windows PowerShell command Test-NetConnection with the following syntax (where the sections in italics are what need to be modified):
Test-NetConnection -ComputerName computername -Port po... |
Problem Statement: After switching to Windows 11, when using the Aspen Plus Set Compiler utility, all of the options in the compilers64.cfg config file are not visible and some repeat.
The screen looks like this. | Solution: This problem can be resolved by increasing the row number for command prompts. It only needs do be done one time on the machine.
Open the Command Prompt and right mouse clicking on the top to get Properties.
The Launch Size default number of rows is 30. Increase that number to 100 to see more rows.
For mor... |
Problem Statement: When installing and configuring multiple nodes for AUP, I need to use the Amazon S3 bucket to share folders across the nodes, how do I configure this? | Solution: Steps:
Installation of AUP in the AWS environment will follow the steps as outlined in the Installation guide with one minor tweak during the multi-node configuration. When going through the Primary Machine Setup, you must create the three folders mentioned (DistributedFilesFolder, AssayLibraryFolder, and Rep... |
Problem Statement: Why are there several shared folders in Aspen InfoPlus.21 (IP.21), what applications need them, and what permissions are required for these? | Solution: Several folders in Aspen InfoPlus.21 are shared to allow remote users the ability to access the Aspen InfoPlus.21 Administrator to make changes to the Aspen InfoPlus.21 environment.- Meaning users running the Aspen InfoPlus.21 Administrator program on a computer other than the one running the Aspen InfoPlus.2... |
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