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Problem Statement: Can Aspen HYSYS handle modeling of solids? Which are the solid components in the library? How can someone add a solid component? | Solution: HYSYS can model solid handling to limited extent. Aspen HYSYS is basically a VLE (Vapor liquid equilibrium) simulator and doesn't account for solid-liquid-vapor equilibrium. Their vapor pressure information is by defaults set to zero. The existence of solid components is only reflected in the energy and mater... |
Problem Statement: This article contains 2 procedures. One for setting up the new Cim-IO server and the other for setting up Cim-IO logical device on the IP.21 servers in the Enterprise Historian. The later one may be also called as setting up Cim-IO clients on the IP.21 servers. | Solution: Part-1 Procedure for setting up a new Cim-IO server for Enterprise IP.21 Historian
Setting up a Cim-IO server for an Enterprise IP.21 Historian is quite similar to setting up a Cim-IO server for a standalone IP.21 server, except the Collaborative.cfg file needs to be configured in case of Enterprise IP.21 His... |
Problem Statement: How to resolve OPC UA Explorer when connected to Manufacturing Master Data Manager (mMDM) model not showing any hierarchy node? | Solution: OPC UA server interface can be connected to mMDM model to access mMDM definition attributes including hierarchies, class attribute values, and dynamic data attribute values. Configuration steps can be referred from the Aspen mMDM Implementation Guide .
After the configuration, check if the connection is succ... |
Problem Statement: Do the Aspen Multi-Case V12 & V12.1 coexist? | Solution: Aspen Multi-Case V12.1 does not support full coexistence with Aspen Multi-Case V12. As a result, when multiple versions of Aspen Multi-Case are present on a single machine, the multiple versions cannot be used simultaneously. However, limited coexistence is supported.
Multiple versions can be present on the... |
Problem Statement: Can we import the Aspen Plus Dynamics flowsheet into the Aspen Adsorption? | Solution: To attach a complete Aspen Plus Dynamics simulation to an existing Aspen Adsorption simulation (for example, an Aspen Plus Dynamics-based cryogenic distillation train to an Aspen Adsorption TSA system for air dehumidification):
In Aspen Adsorption, open the Aspen Adsorption simulation.
Check the component lis... |
Problem Statement: Which are the supported applications in Aspen Model Runner? | Solution: Aspen Model Runner can run Aspen Custom Modeler or Aspen Plus Dynamics simulations that are exported from these products as Aspen Model Runner files.
It does not support simulations from other Aspen Modeler family products such as Aspen Batch Distillation, Aspen Adsorption or Aspen Chromatography.
Keywords: ... |
Problem Statement: Aspen Custom Modeler V12 unable to open | Solution: This is a known issue that can be addressed by adding a registry key in the installation for V12.
Open Registry Editor on the machine that is having the issue
Go to HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\AspenTech
Add a new String named “DoNotRegister” and set the data value to 1.
Open again Aspen Custom Mod... |
Problem Statement: Which Aspen product models are capable to run in Aspen Online? | Solution: Aspen OnLine is capable of running steady-state and dynamic process models developed using the following modeling tools:
Aspen Plus (sequential-modular or equation-oriented models)
Aspen Custom Modeler, Aspen Plus Dynamics, Aspen Utilities Planner, and Aspen Model Runner (Aspen Modeler products)
Aspen HYSYS (... |
Problem Statement: Sometimes data collection for big controllers (more number of Dependent and Independent Controller variables) could not be started in Aspen Watch. | Solution: While trying to start the data collection for some of the controller the user may find that after some time the data collection for the controller stops automatically.
The error could be because of the limitation of database size or at least the command that is estimating the maximum available database memo... |
Problem Statement: What is the purpose of DLGP uses interactive process window checkbox in Cim-IO Interface Manager v12.2? | Solution: This knowledge base article will explains the purpose of DLGP uses interactive process window checkbox in Cim-IO Interface Manager v12.2?
In V12.2 Cim-IO Interface Manager, there is a newly added feature - ‘DLGP uses interactive process window’.
The AsyncDlgp.exe in the Cim-IO OPC Interface is an OPC Client... |
Problem Statement: How to get rid off the following error message BLOCK Absorber IS NOT IN MASS BALANCE in Aspen Plus? | Solution: In order to get rid-off the following error message BLOCK Absorber IS NOT IN MASS BALANCE, you will need to follow up the route to change the convergence setting for Absorber:
Blocks || Absorber || Convergence || Convergence || Advanced || Absorber -> Yes
Keywords: Aspen Plus, Absorber, Mass Balance
Reference... |
Problem Statement: How to get rid off the following message Bubble Point flash to determine relieving temperature failed while using Pressure Safety Valve (PSV) in Aspen HYSYS? | Solution: The message Bubble Point flash to determine relieving temperature failed appears when you set the calculation method to Wetted. However, since we are in the supercritical region, the method can't perform the calculations due to the impossibility of finding an actual phase equilibrium point at that pressure.
... |
Problem Statement: How to get rid off the following error message MATERIAL AND ENERGY BALANCES FAILED TO CONVERGE: CHECK COL-SPECS OR SUPPLY BETTER TEMPERATURE AND COMPOSITION ESTIMATES in Aspen Plus? | Solution: The message MATERIAL AND ENERGY BALANCES FAILED TO CONVERGE: CHECK COL-SPECS OR SUPPLY BETTER TEMPERATURE AND COMPOSITION ESTIMATES is about supply better estimates. So, seems that for a first run, Aspen Plus is not finding a suitableSolution, but you have some results. You can generate estimates from the ava... |
Problem Statement: How to get rid off the following error message RADFRAC NOT CONVERGED IN 50 OUTSIDE LOOP ITERATIONS. in Aspen Plus? | Solution: In order to get rid off the following error message RADFRAC NOT CONVERGED IN 50 OUTSIDE LOOP ITERATIONS in Aspen Plus, you may increase the maximum iterations from 50 to 100 from Convergence | Basics | Maximum iterations = 100
Keywords: Aspen Plus, Loop, Iterations
References: None |
Problem Statement: The application path is set up by default to https://FQDN/APM where FQDN is the computer’s fully qualified domain name. You want to change this to a different URL. | Solution: Open C:\Program Files\AspenTech\Aspen Mtell Alert Manager\Frontend\index.html and in line 6 change /APM/ to ./
Save the file in the Desktop and then copy back this file into the Frontend folder. You will need an account with admin rights.
Open IIS Manager and navigate underneath Default Web Site to where you ... |
Problem Statement: This Knowledge base article addresses the following error message, which can be seen in the TSK_DBCLOCK.ERR file after an unsuccessful Aspen InfoPlus.21 database start:
RESTORE : Error from load from memory = -81 | Solution: This error is related to the Aspen InfoPlus.21 System Account not matching the account that starts the Aspen Infoplus.21 Task Service account. Aspen InfoPlus.21 database may not start unless these two accounts match.
Please follow the link to the article that explains how you can synchronize these account: W... |
Problem Statement: Note, this | Solution: also answers the question: How do I change the Aspen InfoPlus.21 System Account when it is currently set to an account which no longer exists?
This procedure would be used by System Administrators who need to change the user account used for starting the Aspen InfoPlus.21 Task Service. Generally, this would b... |
Problem Statement: I want to write a .NET C# application (for example one that sends an array to a SQL Plus ProcedureDef). In the latest version of Aspen SQLplus there are a lot of useful methods to use (SQLPlusCommand, etc). What is the program or dll that needs to be referenced in the Microsoft environment to use the... | Solution: In order to reference the Aspentech.SQLplus.DataProvider.dll (which resides in the GAC) in a C#/.NET project, you have to do the following steps:
1. Open a DOS Command Prompt
2. Type in the following command: cd C:\Windows\Microsoft.NET\assembly\GAC_MSIL and hit the Enter key
3. Type in th... |
Problem Statement: OPC UA tag name can be expressed as abbreviated name space or the using the full browse path from /Objects node down to the value; the usage of one syntax or another depends also on the CIM-IO version to to use. This article shows the proper syntax to use for a tag name on a CIM-IO for OPC UA interfa... | Solution: Having an OPC UA tag, name can be expressed using just the node Id as abbreviated name or as the full browse path, for example, having a tag like:
An OPC UA simulation server shows the node id as follow:
The yellow box shows the abbreviated name while the dark blue boxes shows the path of the tag. Having th... |
Problem Statement: How can I calculate the activity coefficients of components in a mixture in a User subroutine? | Solution: Following is a user subroutine that you can use to access the activity coefficient for all components. You can use this subroutine in user subroutines for User Kinetics, User Property sets or User Blocks.
To use this subroutine, specify the following call sequence in your original subroutine:
CALL GETAC... |
Problem Statement: This article mentioned a couple of tips that can be useful when dealing with IIS log files storage. The most common type of problem related to this kind of files is memory shortage. However, these files could be not significant for Web or Online applications as PCWS or the DMC controllers. | Solution: As many other application IIS has the capability of generate logs for further troubleshooting on some applications related. However, problems as memory consumption and hard drive consumption could be consequence of constant increase of these files.
On a normal situation, these files would not be harmful on W... |
Problem Statement: This article talks about a way to fix the error A script error has occurred on this display. Please contact your administrator..., which could happen after CP1 installation for V12.1. This Error could cause display problems or may cause the context menus and aspenwatch menú ítems to stop working and ... | Solution: This problem is mainly reported on Internet Explorer Web Browsers. As mentioned in the description the problem may cause display problems on the Web Server showing Error 1 for some items, and “A script error has occurred on this display. Please contact your administrator...” in other cases.
TheSolution to th... |
Problem Statement: This article talks briefly on the differences that may exist on the identification results between DMC+ model and DMC3 Builder. | Solution: The short answer to the question is Yes, there could be numerical differences on the Identification results between both applications. Most likely these differences can be noticed on the identified Gain results. Lets take the following example of an ID case in DMC+ Model:
This is a 1MV vs 1CV Sub Space ID Ca... |
Problem Statement: When running a PIMS-AO model, we noticed the warning message that “Variable QABCXXX at bound 0 with DJ -1.897 for SMNNXXX = 0.0409358” in execution log.
We put ABC MIN= -5 in T.SCALE, but warning still shows ABC bound at min 0. Even we tried to add it in T.SCALE with the same min/max, it does not sol... | Solution: For the issue with putting the properties in SCALE, the user has the option on in the XNLP Settings > Advanced tab to Use Tighter Bounds on Qualities. Generally, it is not recommended to use this setting. In this case, the pool-specific bounds take precedence over the wide bounds coming from table SCALE.
Key... |
Problem Statement: Is VMWare ESXi Version 7 virtual machine supported to host APC V12.1 products? | Solution: Yes, it is supported for APC V12.1 CP1. As of late June 2022, testing was completed for APC V12.1 CP1 software products using VMWare ESXi version 7.0 environment and no specific issues were observed.
The rest of the supported platforms can be found in the Platform Support specifications: https://www.aspentec... |
Problem Statement: By default, security authorizations travel on port (80), which is the default web http port. In some configurations, it is desirable to change to a different port. An example would be when the Security Server is behind a firewall. | Solution: This process consists of two steps, configuring the server, and configuring the client(s).
Step 1: Configuring the server.
Open Internet Information Services (IIS) Manager:
If you are using Windows Server 2012 or Windows Server 2012 R2:
On the taskbar, click Server Manager, click Tools, and then click Interne... |
Problem Statement: Procedure to migrate Aspen Watch Applications for applications which have a changed name or type. | Solution: Procedure to migrate Aspen Watch Applications (Changing Name or Type)
AW_MigrateApp is an Aspen Watch utility that allows you to:
· Rename an Aspen Watch application (when you rename the Online app)
· Change the Application type (e.g. From DMCplus to APC/DMC3)
· Change the Online Host ... |
Problem Statement: It is required to install and use a named instance of SQL express (Microsoft SQL Express 2014 SP2) if you want to run Aspen OnLine as a Local System. | Solution: The installer for SQL Express 2014 64-bit is included in the:
\3rd Party Redistributables\Microsoft SQL Express 2014 SP2 subfolder.
Follow these steps to install and configure a named instance of SQL Express.
Double click SQLEXPR_x64_ENU.exe to start the installation.
Click New SQL Server stand-alone installa... |
Problem Statement: What is Real-Time Optimization (RTO)? | Solution: Aspen OnLine enables rigorous process models to be used with validated real-time plant historian data to drive excellence in plant operations by helping achieve maximum profitability and reduce operating costs. This can be accomplished in real-time and within process constraints. In addition, plant issues can... |
Problem Statement: Is it possible to collect logging information for Aspen SQLplus applications and TSK_SQL_SERVER? | Solution: Download the attached SQLplusLoggingAdmin.zip file and extract to yield SQLplusLoggingAdmin.exe file.
Transfer the file to the Aspen InfoPlus.21 (IP.21) server.
Open IP.21 Manager and stop TSK_SQL_SERVER task.
Run the SQLplusLoggingAdmin.exe file
Select the desired Application to log information on using the ... |
Problem Statement: This issue has been seen after an unexpected shutdown of an APC Online Server that is using the Olefins License Scheme. This happens on both DMCPlus (ACO) and DMC3 (RTE) controllers.
Olefins License Scheme can be selected by running APC License Scheme Selector application. When using Olefins scheme,... | Solution: Stop all running controllers on the APC Online server.
Open the program APC License Scheme Selector and verify that the APC (Olefins) license scheme is being used.
Open the AspenTech.APC.OlefinsServiceCharge.info file in a notepad and if it is blank, that verifies that the file has been corrupted. The file ... |
Problem Statement: When running calibrate mode, the engine might not be making enough moves on an MV and showing Economics as the step constraint preventing the moves. This article aims to explain what this means and how to prevent the control engine from getting stuck in this situation. | Solution: The MV step constraint of Economics means that the controller could not find a move that would meet the cost objective function based on the Calibrate Ratio. The engine calculates the optimal value of the objective function based on the LP costs, J_opt and then computes the current value of the objective func... |
Problem Statement: After installing Aspen ProMV Online V12.0.1 and above an error is displayed when opening the Browser reporting “Internal server error”
After first installing Aspen ProMV V12.0.1 an error can show up displaying Internal server error, additionally when clicking on the bell icon the following errors ar... | Solution: These errors show up when the additional Aspen ProMV patches have not been installed
Open the folder with the Aspen ProMV V12.0.1 installer
Navigate to the patch Folderlocation\Aspen-ProMV-V12.0.1\aspenONEMedia\Patches Where folder location is the location where the installation folder is placed
Execute the U... |
Problem Statement: why is Aspen HYSYS Peng Robinson fluid package predicting different dew point temperature between PT envelope and Stream flashing at low pressure? | Solution: The issue occurs when performing stability test. Avoiding the stability test by using HYSIM flash (Properties ->Fluid Packages -> Stab Test ->Stability Test Parameters ->HYSIM flash) provides the same TP and TV flash results with the HYSYS Package and Peng-Robinson properties.
After performing the above, the... |
Problem Statement: Why were TPXX or TXXY data sets with missing points allowed in V10 but not allowed in V11 and V12 when you run Aspen Plus file? | Solution: In Aspen Plus V10, the missing data are allowed as per below:
However, when you open the same file in Aspen Plus V11 or V12, the missing data are not allowed and the form is incomplete as per below:
Starting with V11, Aspen Plus requires LLE data that values for both liquid phases. This requirement ensures ... |
Problem Statement: Confusion can arise when you are working on APC/DMC projects where you have several different servers that may have different versions or that have different CPs installed, how can files be modified according to the last machine that edited it? | Solution: APC software is designed so its files (such as .ccf, .iqf, .dmc3project, .dmc3application, .apcdataset, etc.) are backwards compatible, meaning that for example you can import into a V12.1 DMC3 Builder machine a .dmc3application that was created on a V11 or V12 machine, but the reverse is not true. For exampl... |
Problem Statement: How to suppress a message of an Aspen Process Controller (APC) application. | Solution: To suppress Aspen Process Controller (APC) messages, two files (depending on the message type) should to be created:
apc.user.message.config
rte.user.message.config
These .CONFIG (UTF-8) files must be placed on the APC Online Server in the next paths:
Windows 2003 or earlier - C:\Documents & Settings\All User... |
Problem Statement: How is the process in HYSYS to calculate the hydrate formation temperature? | Solution: The reason why the hydrate formation temperature is different when calculated directly taken from HYSYS simulation and when defined at a separate stream considering same compositions and conditions for both the streams caused is based on the two-methods application difference as below:
• Ng & Robinson: This ... |
Problem Statement: How to create a COMThermo Fluid Package in Aspen HYSYS? | Solution: In Aspen HYSYS, you can add fluid packages from a selection of sources: HYSYS, Aspen Properties, or COMThermo. To Add a COMThermo fluid package follow the steps below:
Click Fluid Packages in the Properties Environment navigation pane. The Fluid Packages manager view appears.
Click Add. Choose from the COMThe... |
Problem Statement: All Aspen Mtell Server and Client components must use the same regional settings. If they are not, you will encounter the following errors while training agents or viewing trends.
When trying to train an agent, you get the following error:
Error Training Agent:
Failed to build expression from (Off... | Solution: First, check your version of Mtell. In older versions of Mtell (before V10.0.4), an offline condition with a decimal could not be used in non-English Operating Systems. See this KB for details.
If you are in a later version of Mtell than V10.0.4, then you likely have Server and Client machines which are not ... |
Problem Statement: From the Composite log file, the following message has been observed:
CLPSUB - CLPON, IENGCHK, IPEROR CONFAK = 0 393 458 0
What do these IENGCHK and IPEROR parameters mean? | Solution: IENGCHK = 393 is giving this message: LP ECE 1E6 without CVRANK = 9999
This means that the CV has been taken out of the feasibilitySolution by setting Equal Concern Error to 1E6 but this is inconsistent with the Rank because it is not set at 9999. If ECE = 1E6 and Rank <> 9999, this warning message is issued... |
Problem Statement: When starting to use Aspen Online, nothing happens for a while, and then it says
No connection could be made because the target machine actively refused it | Solution: First, try the following to check if the Aspen OnLine service is not running.
Use this procedure to start the service and set it to start automatically:
1. Using an account with administrative privileges, search for Services and run it.
2. In the Name column, locate and click Aspen OnLine VX.X. Right click... |
Problem Statement: How can I generate Aspen Cim-IO diagnostics? | Solution: For Version 9 and Below
You can do this by going to the CimioProperties, on the machine where the cimio to opc is running.
Go to Program Files / AspenTech / Cimio / Code, and open up Cimio Properties, and go to the Cimio Diagnostics Logging tab. Find Diagnostic Logging and select ON from the dropdown list. D... |
Problem Statement: How do I link a user variable using Aspen Simulation Workbook? | Solution: User variables can be directly linked to ASW using ASW V10 and higher with Excel version 2016 using Copy/Paste or using the Variable Browser in the Organizer. We recommend upgrading Aspen products to V10 if using earlier releases.
In earlier versions of Aspen HYSYS, a Spreadsheet block needed to be used as a... |
Problem Statement: What should I do if I am having issues accessing Aspen AI Model Builder? | Solution: There are two common issues users might face when trying to access AI Model Builder:
Unable to log into AI Model Builder:
First, ensure that an account is created for access to Aspen AI Model Builder and register the account by following the instructions in the registration email. To create an account, please... |
Problem Statement: How can I use Aspen Simulation Workbook (ASW) to get simulation data for use in Aspen AI Model Builder? | Solution: Please see the attached pdf file for steps on how to use Aspen Simulation Workbook to get simulation data instead of Multicase.
Keywords: Aspen AI Model Builder, Aspen Simulation Workbook (ASW), simulation data, running scenarios without Multicase
References: None |
Problem Statement: What are some of the common issues faced while deploying hybrid models in a simulator (Aspen Plus or Aspen HYSYS) and how can they be addressed? | Solution: This article highlights some of the common issues faced while using Aspen AI Model Builder and possibleSolutions:
Unable to locate exported hybrid model
All hybrid models will be downloaded to your browser's download location. By default, this is the Downloads folder.
Unable to add hybrid model to Aspen Plus ... |
Problem Statement: How do I replace my large flowsheet with a reduced order equipment model? | Solution: Please see the attached pdf file for steps on how to replace a large flowsheet with a reduced order equipment model.
Keywords: Reduced Order Model, Hybrid Modeling, Aspen AI Model Builder, subflowsheet, hierarchy
References: None |
Problem Statement: What are some of the common issues while using Aspen AI Model Builder and how can they be addressed? | Solution: This article highlights some of the common issues you may see while using Aspen AI Model Builder and possibleSolutions:
Upload data step fails
Currently only .json files exported from Multicase, and .csv files are supported. For .csv files, ensure that the correct format is used according to the template sp... |
Problem Statement: How do I build a reduced order model for a Gas Plant? | Solution: Create a Reduced Order model using the Aspen HYSYS file to speed up the simulation of this process. Advantages include:
• Run more scenarios, faster
• Optimize the process very quickly
• Create a larger scope model connecting multiple ROM models for an entire site
• Deploy the ROM model on-line
Please see th... |
Problem Statement: How to create a new account and assign permissions for Aspen AI Model Builder/Event Analytics? | Solution: Please see the attached video for relevant steps.
Key Words:
New account, permissions, Aspen AI Model Builder, Hybrid Modeling, Hybrid Models
Keywords: None
References: None |
Problem Statement: How to add product permissions for users of Aspen AI Model Builder? | Solution: Please see the attached video for relevant steps.
Key Words:
Product permissions, Add, Aspen AI Model Builder, Hybrid Modeling, Hybrid Models
Keywords: None
References: None |
Problem Statement: How to remove product permissions for users of Aspen AI Model Builder? | Solution: Please see the attached video for relevant steps.
Key Words:
Product permissions, Remove, Aspen AI Model Builder, Hybrid Modeling, Hybrid Models
Keywords: None
References: None |
Problem Statement: How do I build an Aspen Hybrid Model for an LDPE polymerization process? | Solution: Create a Reduced Order model using the Aspen Plus file to speed up the simulation of this column. Use plant and lab data to create an AI Driven sensor model for predicting a key property: melt flow index.
• Run more scenarios, faster
• Create a larger scope model connecting multiple ROM models for an en... |
Problem Statement: How do I create a reduced order model for the FCC unit? | Solution: Create a Reduced Order model using the HYSYS file to deploy directly to PIMS-AO
The model update process can be completed quickly by non-experts
The model is nonlinear and accurately predicts the over cracking peak thus improving the optimization and decreasing the margin gap
Model covers a wide range of scen... |
Problem Statement: How do I create a Reduced Order model in Aspen Plus for an Methylcyclohexane recovery column? | Solution: Create a Reduced Order model using the Aspen Plus file to speed up the simulation of this process
Run more scenarios, faster
Optimize the process very quickly
Create a larger scope model connecting multiple ROM models for an entire site
Deploy the ROM model on-line
Please see the attached PDF for steps on ho... |
Problem Statement: How do I create an AI driven hybrid model in Aspen HYSYS for a membrane? | Solution: Easily create predictive membrane hybrid model using data from the asset and deploy it in Aspen HYSYS to connect to rigorous existing model
– A non-expert can create and maintain an accurate custom model rapidly – saving time
– Optimizing the complete process (including hybrid model) increas... |
Problem Statement: How to share projects on Aspen AI Model Builder? | Solution: 1) Login to Aspen AIMB to view projects list.
2) Select the desired project you wish to share and click on ‘Share’.
3) Provide the email address of the person you wish to share the project with and click on ‘Add’.
4) To revoke access from a user, select the email address and click on ‘Revoke’.
... |
Problem Statement: How to deploy a hybrid model (.athm file) to Aspen Plus or Aspen HYSYS? | Solution: Aspen Plus
Import the .athm file into Aspen Plus
1. Open the Aspen Plus case where the hybrid model needs to be added. On the Customize Tab, click Manage Hybrid Models.
2. Click Browse for Available Model and select the .ATHM file.
Notes: Hybrid models can also be used in Aspen Plus V10 and V11 using... |
Problem Statement: How do I create an AI driven hybrid model in Aspen Plus for a membrane? | Solution: Easily create predictive membrane hybrid model using data from the asset and deploy it in Aspen Plus to connect to rigorous existing model
A non-expert can create and maintain an accurate custom model rapidly – saving time
Optimizing the complete process (including hybrid model) increases productivity, reduce... |
Problem Statement: What are the general performance benchmarks for running Aspen ProMV Online and Aspen ProMV Desktop? | Solution: Benchmark for ProMV Online:
Test Case (V12.0.6)
Computer configuration: 16 GB memory (RAM) and 8 virtual processors
Test conditions:
5 big data continuous agents (1000 X-variables, 48 Y-variables)
20 batch agents (254 X-variables)
Ran for four days (10 second calculations)
Results:
No delay in results occurre... |
Problem Statement: This article provides information for configuring DCOM communication, used primarily by Administration tool, in Aspen Basic Engineering. | Solution: DCOM communication is a Microsoft protocol used by the Administration tool in Aspen Basic Engineering (ABE) V11 and V12. Additionally, V11 Cumulative Patch 1 Emergency Patch 17 enables the Drawing Editor to use DCOM communication too.
To verify DCOM communication is enabled, open the Windows Firewall with Ad... |
Problem Statement: Can a COMPR block be used to compress a mixture below its dew point? | Solution: Yes, you can use a COMPR block to compress a mixture below its dew point by specifying 2-phase outlet conditions (to do this, enter Vapor-Liquid for the Valid Phases on the Setup | Convergence sheet). If the outlet stream from a COMPR block is below the dew point of the mixture, the COMPR block issues a warni... |
Problem Statement: How can I migrate Aspen Properties Enterprise Database (APED) from Microsoft SQLLocalDB to SQL Server Express? | Solution: The aspenONE Engineering products use Aspen Properties Enterprise Database (APED) which can be hosted on Microsoft SQL LocalDB or SQL Server.
To migrate from SQLLocalDB to SQL Server Express, please follow these steps:
1. Install a support version of SQL Server Express on the user machine. You can view sup... |
Problem Statement: How do the different license states impact the functionality of Aspen Mtell V12.0 and higher? | Solution: Starting in version V12.0, Aspen Mtell (Mtell) performs run-time license checks. The outcome of a license check determines the License State, which may impact the functionality of Mtell.
This knowledge base article describes the various License States for Mtell and the impact in functionality for each state.
... |
Problem Statement: AspenTech is tracking 2 vulnerabilities related to Java Spring Framework and Tomcat Server. Information disclosure from Spring started on March 30, 2022, for these two vulnerabilities:
CVE-2022-22965 - in component spring-core (Remote Code Execution). CVE-2022-22965. This vulnerability only impact is... | Solution: AspenTech Patch Updates:
In response to Spring4Shell vulnerability (CVE-2022-22965 and CVE-2022-22963), AspenTech recommends the following patches:
Product: Aspen Collaborative Forecasting (ACF):
V12:
Aspen Collaborative Forecasting V12.0.2.3 Emergency Patch 3 (EP3) - April 2022
V11:
Aspen Collaborative F... |
Problem Statement: When building a custom databank, what is the character limit for “Component ID”, “Component name”, and “Alias”? | Solution: Aspen Plus allows up to:
• 8 characters for “Component ID”
• 32 characters for “Component Name”
• 12 characters for “Alias”
Keywords: Character limit
References: None |
Problem Statement: The ‘Export Data + plotplan results’ option from the Spreadsheet Import/Export window in Aspen Capital Cost Estimator is unavailable. | Solution: To activate this feature, go to the bottom of the Equipment Specs form under Project Basis View, and set the Print equipment coordinates option to Y.
The ‘Export Data + plotplan results’ option in the Spreadsheet Import/Export can now be selected. Note that the Components by Area option needs to be checked i... |
Problem Statement: How can I remove all piping drains for a component? | Solution: Drains specifications are available in the Pipe – General Specs form under the Options menu for each project component. These can be removed by setting the Delete all drains field to Y| Delete all drains from all piping lines for this item option.
Keywords: Installation bulks.
References: None |
Problem Statement: When trying to evaluate an item, the evaluation takes a long time and the following message shows up: “Reports are being generated. Please wait for completion and evaluate again”.
Then, when the project is evaluated, another message pops-up: Cannot open database icarus_user120 requested by the login... | Solution: If these error messages show up for one scenario only, navigate to the scenario folder and delete the *.szp file. The path can be found in the Economics' Properties Pane once the scenario of interest is selected.
However, if the Icarus_User120 message shows up for all scenarios and none can be evaluated, re... |
Problem Statement: Some models require working under specific warning messages that are not certainly errors, however, the pop-up warning message is annoying, and users need to manually close them every time they appear. | Solution: Go to File -> Options and select Display errors in trace window this will display the warning messages in the trace window instead of the pop-up messages.
Keywords: Pop-up window, Error message, Transport Properties, Hide warnings, Trace windows
References: None |
Problem Statement: How to set up more than four significant decimal digits in the composition input? | Solution: Go to options>Units of measure>Mole fraction/Mass Fraction>Change the current decimal digits.
Now users can set more accurate compositions.
Keywords: Concentration, Decimal Point, Aspen HYSYS
References: None |
Problem Statement: How to change the Main Flowsheet name? | Solution: To change the Main Flowsheet name, go to the Customize ribbon and then click on Case Name and Tag Properties:
Users are allowed to use a different Case Name and Case Tag.
Keywords: Edit case name, Tag Properties
References: None |
Problem Statement: -
How to understand which unit is impacting the capacity utilization when you have some new debottlenecked capacities for your particular unit that is not running at good capacity. | Solution: –
To understand which unit is impacting the capacity utilization of your newly debottlenecked capacity units we need to check in the fullSolution report under “Capacity utilization summary” which units have reported the positive marginal values that indicates the unit has hot the maximum constraint and is run... |
Problem Statement: –
How to resolve below error message while installing SQL. Below error pops up. | Solution: –
1. Well, it turns out if your don’t have those rights after all so let’s grant them, Windows Key+R > Control admintools {Enter}.
2. Launch ‘Local Security Policy’
3. Navigate to Security Settings >Local Policies > User Rights Assignment > Back up files and directories > Add in the user that’s being den... |
Problem Statement: What are the different options are available for insulation, heat tracing and jacketing on plant and installation bulk piping in ACCE? | Solution: ACCE provides various insulation, heat tracing and jacketing special pipe options on on plant and installation bulk piping.
Option Description in Drop-down Tracing Type Detailed Description
STAND Standard heat or cold insulation None Standard pipe without any tracing or jacket. *Default option*
PPROT
Pers... |
Problem Statement: How do you create a 3D Plot for RADFRAC profile (for example: Temperature profile, Composition profile) in Aspen Plus Dynamics with number of stage in X axis and time in Y axis? | Solution: The attached example file is used to explained how to create a temperature profile of RADFRAC block with number of stage in X axis and time in Y axis.
1. From the toolbars click the New Form botton, enter the plot name and select Profile Plot, then click OK.
2. Do a RMB click on the plot and select Profile ... |
Problem Statement: When upgrading an Aspen Mtell database to V12.0.4 (V12 CP4), I get an Operation error 'Executing Update-480' with Result 'The INSERT statement conflicted with the FOREIGN KEY SAME TABLE constraint FK_FmecaItem_FmecaItem. The conflict occurred in database MtellSuite, table dbo.FmecaItem.'
This error ... | Solution: Run the attached script on the MtellSuite database. This will insert all standard data needed. Once this is done, Open the Aspen Mtell System Manager and select the option to continue with updating the database version to (or beyond) version 480.
Keywords: FK_FmecaItem_FmecaItem
dbo.FmecaItem
References: None |
Problem Statement: Aspen InfoPlus.21 does not start and TSK_DBCLOCK.ERR contains the message.
failed to create h21 shared-memory, ret =-1073 | Solution: This error indicates that the config.dat file is corrupted. The file config.dat is located in the default folder below:
C:\ProgramData\AspenTech\InfoPlus.21\c21\h21\dat
You have two options to resolve this error:
1. Replace the corrupted config.dat file with a valid, non-corrupted copy from a backup and ... |
Problem Statement: How to resolve AspenUnified PIMS help feature now working/not accessible? | Solution: The above error might appear when we have some missing Help file contents. The AspenUnified PIMS help file directory will not have/missing content files.
To resolve this error follow below steps:
1. Got to below path can check if all the help file contents are present by comparing it with working AUP setup.
... |
Problem Statement: In the composite suite, there is a debug level parameter called DEBUGLVL that can be configured as numerical values in the .INI file. What are the different debug levels and what do they do? | Solution: The basic levels for the DEBUGLVL parameters are 2, 3, 4, 5, and 10. Although levels up to 100 are supported for debugging, it is not recommended to go above 10. As this debug level parameter is increased, there will be more details captured in the log files for diagnostics. Level 10 will print out a fairly d... |
Problem Statement: -
The error Error in connecting Aspen Unified Services might be also due to issue in connecting the SQL server which gives error Cannot connect to SQL server as well. | Solution: -
The reason for not being connected to SQL is due the multiple SQL server instances being created leading to clash/confusion while connecting to the correct and existing SQL server.
We need to follow below steps for this:
1. Go to Services
2. Look for SQL server services
3. Check with the correct SQL serve... |
Problem Statement: HistoryBackupDef records are used to backup Aspen InfoPlus.21 History Archives and History System Files.
The fixed area of the records defined by HistoryBackupDef contain a field called LOG_FILE
This field points to the file that should be investigated if any problems are encountered.
A typical err... | Solution: This kind of error is coming from a call to FILECOPY, therefore the errors are Microsoft Errors
The errors are described in: https://docs.microsoft.com/en-us/windows/win32/debug/system-error-codes--0-499-
In this case the number 3 means
ERROR_PATH_NOT_FOUND - The system cannot find the path specified.
Keyword... |
Problem Statement: How to Export Variable Lists from Aspen Simulation Workbook? | Solution: Aspen Simulation Workbook can export an XML file containing a list of the model variables. The variable export file is given the extension “ATMVO” (AspenTech Model Variable Organizer) by default. The ATMVO file lists the simulation file absolute path, variable name, variable path, and description for each ite... |
Problem Statement: How do I resolve Result Warning 1816 – “unusual value of compressibility, (calculated from vapor data at the dew point), this may affect the accuracy of the calculated results” | Solution: The result warning 1816 - It is meant to alert the users that an unusual value has been calculated based on the input physical properties.
This may occur because the dew point for both streams possibly much higher than the highest temperature of physical properties provided.
To remove such warnings, user can... |
Problem Statement: How to change default location of the Import and Export definition files to be used when transferring information between Aspen Flare System Analyzer and Access, Excel, or XML files. | Solution: User can specify the name and location of the Import and Export definition files to be used when transferring information between Aspen Flare System Analyzer and Access, Excel or XML files. Entries allow specification of the default definition files and the base definition files to be used for creating new cu... |
Problem Statement: When looking for AW tags through tag browser, the definition records such as 'AW_INDDef', do not show.
The tags are visible under the IP21 administrator. | Solution: Run the following query through Aspen SQLplus in the AW server to resolve this issue (it updates the default map record for each Aspen Watch definition record). The change takes effect immediately.
update definitiondef set map_record = 'AW_ONSTS_M' where name = 'AW_CTLDef';
update definitiondef set map_record... |
Problem Statement: This Knowledge Base article illustrate how to resolve the issue of Unable to obtain license for Aspen Transition Manager | Solution: Many customers reported that they are unable to obtain license for Aspen Transition Manager
And they get the following error:
To resolve this issue:
Verify that IP.21 has a License Status Granted.
While IP21 is running, open IP21 administrator, right click on the server's name and o properties.
Then go to li... |
Problem Statement: When trying to open the Production Control Web Server interface http://<servername>/atcontrol, it shows the error:
Server Error in ‘/ATControl’ Application.
Could not load type ‘System.ServiceModel.Activation.HttpModule’ from assembly ‘System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKey... | Solution: This can occur when you have the Microsoft .NET Frameworks 3.X and 4.X installed on the same machine. APC software V12 & V12.1 requires the .NET Framework 4.X, therefore having a .NET Framework 3.X installed too on the web server can cause an error on the configuration for hosting web applications.
On the scr... |
Problem Statement: How to select cost risk analysis and quantity risk analysis options under the Risk Analysis. | Solution: The Risk Analysis feature allowed you to conduct cost risk analysis using Monte Carlo simulation and estimate contingency for your estimates. You could specify the uncertainty for material costs, labor hours, wage rates and indirect costs, however, in previous versions you could not specify uncertainty for th... |
Problem Statement: How to Display Flanges in Model. | Solution: Flanges are displayed for the battery or header lines that terminate on pipe-racks and rack volumes.
To display flanges:
Go to View | Show/Hide | Flanges option
This item will be toggled on indicating the flanges will be visible for all battery lines every time the pipes will be inserted into the 3D model... |
Problem Statement: Sometimes one needs to limit the rate of change of a variable, for example the flowrate of a stream that is manipulated by the user or a PID incr controller. How can we do that in Aspen Plus Dynamics or Aspen Custom Modeler. | Solution: First, let's mention it is possible to apply a ramp on fixed variables. Just do a right mouse click and you can specify the target value and the duration of the ramp. Tasks can be used in any version to specify ramps.
For the more general case of a variable such as the output of a controller, we need to filte... |
Problem Statement: When opening up Aspen Mtell System Manager or Aspen Mtell Agent Builder, you may get the following error message:
(Default Exception Handler) Application Exception:
Could not load file or assembly 'AspenTech.HtmlHelp.StrongNameInvoke, Version=37.0.0.1, Culture=neutral, PublicKeyToken=b05689b39deefbc... | Solution: In order to get Mtell Agent Builder to work, the customer had to copy and paste the file ”AspenTech.HtmlHelp.StrongNameInvoke.dll” Version 37.0 into the following folders:
C:\Program Files\AspenTech\Aspen Mtell\Suite\Tools\System Manager
C:\Program Files\AspenTech\Aspen Mtell\Suite\Tools\Agent Builder
You c... |
Problem Statement: If Process Recipe server and MS SQL Server are in different servers, there might be error:
Cannot open backup device C:\ProgramData\AspenTech\ProcessRecipe\Backup\<db_name>_<Version>_<Timestamp>.bak. Operation system error 3(The system cannot find the path specified.). | Solution: There’re two workarounds to fix this upgrading issue. Depends on how many database you have to upgrade, you can use the first one to auto upgrade, or the second one to manual upgrade:
Wordaround A:
At the MS SQL Server, create folder C:\Program Files (x86)\Common Files\AspenTech Shared\Recipe\DBScripts\SQLSe... |
Problem Statement: The Calculator block does not wait for the Excel macro to be executed before loading the export values. How can I set the macro to be executed first? | Solution: Please find attached an example that illustrates how to do this. Basically you need to create an event-handling macro with the code you want to implement. The event in the example triggers the code when the worksheet sheet1 is modified. This ensures that the macro is executed after the values of the import va... |
Problem Statement: When you open Aspen Mtell System Manager, you get an error message that looks like this.
Connection to MIS Web Service [http://servername/AspenTech/AspenMtell/InteropServer/MIMOSA/OSAEAIManagement.asmx] failed.
[Error: The remote server returned an error: (500) Internal Server Error.]
The same erro... | Solution: Click on your Start/Windows button and type in IIS Manager to open Internet Information Services (IIS) Manager
Navigate to Default Website as shown in the screenshot below. Double click on Authentication.
Make sure ASP.NET Impersonation is set to Disabled.
If you made any changes, confirm this fixed the probl... |
Problem Statement: After a domain name change on the Mtell server, Agent Service and Training Service will no longer start. When using the Find Service button, Mtell does not find an instance of either service on this machine. If you check Windows Services, Aspen Mtell Agent Service and Aspen Mtell Training Service are... | Solution: Note: Using the Registry Editor incorrectly can cause serious, system-wide problems that may require you to re-install Windows to correct them. Modifying the Windows Registry should only be performed by experienced Administrators.
If neither Agent Service nor Training Service will start, you will need to com... |
Problem Statement: This knowledge base | Solution: describes how Aspen Mtell displays timestamps when the data, Aspen Mtell server, and/or end users are located in different time zones.
Solution
Aspen Mtell stores dates in the database in UTC. These dates are converted to the client's local time zone in the Aspen Mtell System Manager, Aspen Mtell Agent Builde... |
Problem Statement: How to resolve “ATData.xla cannot be accessed. The file may be corrupted, located on a server that is not responding or read-only” problem with Legacy Process Data Add-in? | Solution: This problem was noticed with the legacy XLA / XLAM Process Data Add-In not loading on new build computers having MS Office version such as Microsoft Office Professional Plus 2016.
Few things that can be checked to resolve the issue-
Please check if the ‘AspenTech folder’ has been added to the Trusted locatio... |
Problem Statement: How to resolve Process Explorer license error received as follows- | Solution: Steps-
For this particular case, we noticed that the license problem was being encountered by several users trying to access Process Explorer. So we first investigated the IP21 Database to check the license status.
The IP21 Database was showing the License Denied state as follows -
3. On checking the SLM Con... |
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