question stringlengths 19 6.88k | answer stringlengths 38 33.3k |
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Problem Statement: What information is contained in Config.dat, Map.dat, and Tune.dat? | Solution: Config.dat, Map.dat, and Tune.dat are located in “C:\ProgramData\AspenTech\InfoPlus.21\c21\h21\dat”.
Config.dat contains configuration information on the history repositories and file sets, most notably, their location and number. When the database is up and running, the information in config.dat is stored i... |
Problem Statement: After creating a new area in a data source, why unable to view it in BCU Administrator? | Solution: Please follow the below procedure to refresh the BCU service.
1. Start the Aspen Production Record Manager Administrator.
2. In the Aspen Production Record Manager Administrator, expand the console tree from the navigation pane.
3. Right-click the BCU sub-node under the Local Services node, and select Proper... |
Problem Statement: What information is contained in Cache.dat and Event.dat? | Solution: Cache.dat and Event.dat are located in “C:\ProgramData\AspenTech\InfoPlus.21\c21\h21\arcs” (or wherever a repository is created).
Cache.dat is the cache “overflow” file. If the database runs out of space in the memory resident cache, data is written to this file. The cache is where the h21archive.exe tempora... |
Problem Statement: When plotting a trend in Aspen Process Explorer the value field displays the error Server is unable to acquire SLM_RN_PME_IP64_PRDSRV license either when you install 64-bit version of Aspen InfoPlus.21 but on a perpetual license agreement or if you are on aspenONE token-based license but did not get ... | Solution: Before installing 64-bit version of Aspen InfoPlus.21 make sure you have the necessary license keys. For the license keys needed for 64-bit IP.21, see Aspen InfoPlus.21 64-bit Licensing Requirements
If you are a Perpetual customer but planning to install or start a 64-bit IP.21 database, you will see the abov... |
Problem Statement: A limitation in the VB script language is that natural log function is not supported in VB script. Aspen Calc supports programming in both Calc script and VB script but only Calc script has the capability of using both Log and Log 10 functions. | Solution: An easy workaround for this problem is to use the formula Log X = Ln X / Ln 10 and therefore Ln X = 2.303 * Log X. This can be used in VBscript in the following syntax Log10_X = Log (X) / Log(10)
Note:
For current versions (V10, V11, V12) VB does support both Log and Log10 functions. this has been tested for... |
Problem Statement: APEM does not like certain characters in a text field | Solution: Users must avoid entering the XML special characters in a text field such as: <, >, ', , and &.
If the text field contains any of these characters the following problem could happen. The text value is sent to APRM and is enclosed in an XML message so these characters can cause the data extraction to fail o... |
Problem Statement: Steps to create a basic calculation in A1PE | Solution: 1. Open AspenCalc and for Manager choose the option Calculations
Click New
2. A new window will open, type the name of the calculation.
The Description is optional
3. Click Next | Go to New Formula tab and choose CalcScript | Click Next
Type the formula and click en Next
4. Double click on the Binding ... |
Problem Statement: Excel shows the error IP21ConfigWorkBook:IP21DatabaseSchema:Exception from HRESULT: 0X80040300 after installing MES Excel Add ins | Solution: This problem is related to an ADSA misconfiguration.
1. Run ADSA as administrator
2. Make sure that in the User Settings and System Settings the Directory Server has the correct name of the IP.21 server where you want to retrieve data (see example below)
If it is happening in the Aspen InfoPlus.21 Ser... |
Problem Statement: How to create bulk tags using Excel Add in for Aspen InfoPlus.21 | Solution: Open Excel Add à Go to Aspen Configuration à Click in Manage Records
Choose the type of tag and name filter à Click OK
Add your tags and populate all the necessary attributes for the tag
Click ‘Update IP.21’ and check the summary for review of what will be updated
Click OK and ‘View Summary of Upda... |
Problem Statement: .
Excel Add in is showing the following errors:
Error:Utils::CheckClientLicense:Unable to connect to the target server.
Error:Utils::CheckClientLicense:The download of the specified resource has failed.
Error:Utils::CheckClientLicense. The System cannot locate the resource specified | Solution: .
Remove the ExcelAddin.xml file from the C:\ProgramFiles (x86)\Common Files\AspenTech Shared\ExcelAddIn directory. This will force the Process Data Excel Addin to checkout licenses using SLM Configuration
Keywords: .
Excel Add in
Error:Utils::CheckClientLicense
ExcelAddin.xml
References: None |
Problem Statement: Is it possible to configure SAMEORGIN as an HTTP response header in Information Internet Services (IIS) Manager without affecting aspenONE Process Explorer (a1pe) ? | Solution: The HTTP response headers configured on IIS are not part of the core AspenTech software, but we have seen that sometimes some clients have this option configured.
Having SAMEORIGIN configured on IIS Manager as an HTTP response header doesn't affect the correct operation of A1PE.
Keywords: SAMEORIGIN
IIS Man... |
Problem Statement: Is it possible to disable X-Powered-By on Internet Information Services (IIS) Manager? | Solution: HTTP response headers configured in IIS and are not part of the core AspenTech software and it can be disabled in IIS in the following manner:
1. Open IIS Manager and click on the name of your server.
2. Click on HTTP Response
3. Hight light X-Powered-By and Right click
4.Click on Remove
Keywords: X-Powe... |
Problem Statement: How to upload a snapshot? | Solution: Open Aspen InfoPlus.21 Manager on the IP.21 server side.
Stop database and double click on TSK_DBCLOCK under “Defined task”
Under “Command line paramateres” type the path where the snapshot is located. -- > for example it looks like this: DOUBLE 32000000 SNAPSHOT=C:\ProgramData\AspenTech\InfoPlus.21\db21\gro... |
Problem Statement: How does the “include subfolders” option of the Tag Browser works? | Solution: Inside Tag Browser | View | Options under Search tab there is an option named “Include Subfolders” ( see image below). This option can cause confusion because if it is not selected, users can believe that it will exclude the tags that are associated to a folder.
When the “Include subfolder” box is checked, t... |
Problem Statement: How to delete a data source from aspenONE search through A1PE admin | Solution: 1. Open aspenONE Process Explorer Admin
2. Go to “Tags” tab and go to the bottom of the window. There is an option that says “Delete Data Source”
3. Drop down the list and choose the database that you want to delete and click on the Delete button.
4. Close and open again A1PE and look for a tag, the databas... |
Problem Statement: How to clear the global cache using the Samples Page. | Solution: Sometimes after making changes to the web server or web applications, the changes are not reflected even if the browser cache is cleared.
The following KB article explains how to clear the global cache through the Process Data Samples page.
1. Open your web browser on the A1PE web server and paste the followi... |
Problem Statement: Most connection issues with the Aspen Calc server connectivity involve Microsoft Windows security settings. Since the applications rely on Microsoft DCOM to communicate with Aspen Calc servers across a network, connection problems are likely related to incorrect firewall or DCOM permission settings. | Solution: The document attached to this KB article describes the steps to configure Aspen Calc applications to communicate with remote Aspen Calc servers.
The Aspen Calc Configuration application (thick-client user interface) and the web application allow users to connect to the Aspen Calculation Scheduler service on ... |
Problem Statement: How to create a new repository in order to upload old data into IP.21 server | Solution: In order to bring old data from arc files into IP.21 server, please follow the next steps.
1. Locate the folder that contains all the data that wants to be uploaded into IP.21 server, see the image belows, this folder needs to have the arc files.
Make sure that the folder contains the corresponding arc f... |
Problem Statement: The target OPC UA server rejects the untrusted certificate of Cim-IO OPC UA interface processes | Solution: This occurs only when a nonsecure endpoint is used for connection, I.E., an endpoint other than None Security Mode and None Security Policy is used.
This can be identified by looking below error message in the log file of Cim-IO processes(read/write/unsol)
Session failure, can't connect to Opc UA server:...... |
Problem Statement: What is the difference between CIM-IO V11 and pre-v11 for CIM-IO OPC UA Interfaces. | Solution: In V11 or above versions.
Cim-IO Interface Manager application shows the Connectivity Status of the Cim-IO OPC UA interface processes. The Cim-IO OPC UA interface processes try to connect to the target OPC UA server as soon as the Cim-IO OPC UA Interface is started. Any connectivity issues can be identified a... |
Problem Statement: Query example to move a tag from one repository to another repository | Solution: Before changing the repository of a Tag take a look to the following Kb article What are the consequences of moving a tag from one repository to another repository?
In order to change a tag from one repository to another you should do the following:
Turn OFF the IP_ARCHIVING.
Change IP_REPOSITORY to point to... |
Problem Statement: How often does Aspen Process Data (RDBMS) gets updated when trending in AspenONE Process Explorer or Aspen Process Explorer? | Solution: By default Aspen Process Explorer update every 7 seconds, but sometimes tags retrieve data in a different frequency, so in order to reduce the network traffic to the database, a column named RefreshRate can be added on SQL server to reduce the number of requests when trending in A1PE or APEx.
The value enter... |
Problem Statement: In redundancy environment, is it possible to do a manual switchover between Cim-IO Servers without having ping enable? | Solution: For Cim-IO Redundancy, TSK_DETECT performs a ping operation between Cim-IO nodes to see which server is reachable and then it does an automatic switchover.
Some customer doesn’t have ping enable in their servers and want to know if a manually switch over can be performed to change form one node to another on... |
Problem Statement: Where are the default symbols located in Aspen Process Graphic Studio? | Solution: Open Aspen Graphic Studio, you need to create a new project or have a project already open.
Inside the File Manager section, expand the options and you will see 4 paths, the last two paths containing the symbols that Aspen Process Graphic Studio has by default
You can double click on each folder to get the ... |
Problem Statement: When configuring a new Logical Device and trying to find the Cim-IO Interface on the Cim-IO Server, the following error appears even when is possible to ping the Cim-IO Server.
No CIMIO server found | Solution: If the error happens even when you are sure using the right IP Address or Server Name, and you are able to ping the Cim-IO Server, then is likely that the port 7777 is blocked by a Firewall rule or it has been changed on the Services File.
Proceed to review the bi-directional communication between the InfoPlu... |
Problem Statement: Which configuration should be used when trying to compile an executable for InfoPlus.21 using Visual Studio C++? | Solution: - Create a new project by selecting the option Console App with C++
- On theSolution Explorer right click on your new Console Application and go to Properties
- Go to C/C++ and go to General, then on Additional Include Directories click on the drop down menu and select <Edit...>
- Include the following pat... |
Problem Statement: After migrating the InfoPlus.21 Server, which also is the AFW Security Server, Aspen Process Explore has slow performance. | Solution: If after the migration of the InfoPlus.21 Server some Client Machines are opening Aspen Process Explorer but have slow performance, then is likely that they are still pointing to the old AFW Security Server.
In order to verify this, on the Client Machine run AFW Tools as Administrator and check the URL.
If t... |
Problem Statement: How to connect Aspen Production Record Manager to Aspen SQLplus though ODBC? | Solution: Please follow this procedure to connect SQLplus to APRM through ODBC:
1. Run ODBC Administrator 64 bit as Administrator. Go to System DSN tab.
2. Click on Add. A new window will be displayed. Select “AspenTech ODBC driver for Production Record Manager”
3. Type the name for this connection in the “... |
Problem Statement: How to shift an aspenONE Process Explorer trend on the Time axis? | Solution: 1. Make sure “Shift” column is enabled in the Legend.
To add the “Shift” column, please follow these steps:
1.1 Click on the “Add/Remove columns” button, at the top right corner of the Legend:
1.2 Check the “Show” button for the “Shift” Heading. The position of this column in the legend can be changed by c... |
Problem Statement: Even thought there is a Graphic User Interface in aspenONE Process Explorer (A1PE) V10 to fetch data into an OEE record, sometimes the information to fetch in is in a .CSV file and might take some time to insert manually the information of several events in A1PE. | Solution: The query attached on thisSolution inserts the information that is necessary for the OEE events into a specific OEE record.
Please check these instructions that explain the way in which you must enter data in a .CSV file and what you need to change in the Aspen SQLplus Query attached that will be used to inse... |
Problem Statement: How to perform and Ad-Hoc Calculation in the MES COM Add-In V12. This | Solution: can be performed in these functions: Current Value, Historical Value, Historical Values and Calculated Values.
Solution
1. Open a new Excel spreadsheet and click on the Aspen Process Data tab
2. Select one of the functions described above. In this example “Historical Values” function was selected:
3. On the... |
Problem Statement: Even thought there is a Graphic User Interface in aspenONE Process Explorer (A1PE) V11 to fetch data into an OEE record, sometimes the information to fetch in is in a .CSV file and might take some time to insert manually the information of several events in A1PE. | Solution: The query attached on thisSolution inserts the information that is necessary for the OEE events into a specific OEE record.
Please check these instructions that explain the way in which you must enter data in a .CSV file and what you need to change in the Aspen SQLplus Query attached that will be used to inse... |
Problem Statement: When trying to access to aspenONE Process Explorer after configuring a SSL, the HTTP Error 403.16 is displayed. | Solution: 1. Open Internet Information Services (IIS) as Administrator.
2. Go to Sites > Default Web Site.
3. Double click on SSL Settings
4. Check Ignore option under Client Certificates, then click on Apply:
5. Restart IIS and Apache Tomcat service.
Keywords: A1PE
ERROR 403.16
SSL
HTTPS
References: None |
Problem Statement: Aspen MES Failover Clusters inherently supports AFW security. The configuration depends on whether Local or Enterprise AFW security is to be deployed. | Solution: With Local AFW, the security policies are maintained on the clustered IP21 server and stored in a local database file that resides on the cluster shared disk.
With Enterprise AFW, the security policies are maintained on a separate server from the clustered IP21 servers. The security data is stored in a rela... |
Problem Statement: Is Pattern Search supported for aspenONE Process Explorer V11 32-bit? | Solution: Pattern Search is a new, alternative method of searching for patterns versus Pattern Discovery or Pattern Recognition. This feature was introduced in A1PE V11.
Pattern matching analytics allows you to:
Select data trends in a time period and have the system search similar shaped trends in a fixed history.
I... |
Problem Statement: This Knowledge Base article provides a quick overview (in tabular form) of the interactions between aspenONE Process Explorer (A1PE) V11 and different versions of Aspen InfoPlus.21 (IP.21) database. | Solution: InfoPlus.21 Version Performance
V11.0 Best performance
V10.1 Does not include Conversations, Goals Versus Actuals, Smart Calibration, Batch OEE Extensions or APC Performance Monitoring.
V10 Asset Replacement not enabled. No interoperability. Slower performance.
V9.1 Even slower performance.
V9.0
MES Version... |
Problem Statement: How to open a graphic from a different project in the same Browser tab by using a button in Graphic Studio | Solution: Follow these steps.
“Graphic A” from project “erickson” contains the button with the link to a graphic from a different project:
In the action of the button I used << graphicReplace >> but using this structure: graphicReplace(../../OtherProjectName/GraphicName);
For this example, the action would be this:
Th... |
Problem Statement: How to open a graphic from a different project in the same Browser tab by using a button in Graphic Studio | Solution: Follow these steps.
“Graphic A” from project “erickson” contains the button with the link to a graphic from a different project:
In the action of the button I used << graphicReplace >> but using this structure: graphicReplace(../../OtherProjectName/GraphicName);
For this example, the action would be this:
Th... |
Problem Statement: Sometimes after changes on the configuration it is necessary to unregister and register the .DLL in order to make an application work. | Solution: Open an Administrator command Prompt and run this command to unregister the .DLL:
regsvr32 /u C:\Program Files (x86)\Common Files\AspenTech Shared\Adsa\AtTimezoneSvc_ps.dll
In order to register the .DLL please enter this command:
regsvr32 C:\Program Files (x86)\Common Files\AspenTech Shared\Adsa\AtTimezone... |
Problem Statement: What is the function of the external task TSK_HIST_RECOV? | Solution: In some old Aspen InfoPlus.21 systems, there is a external task called TSK_HIST_RECOV. This task point to the executable cimio_c_histrec_init.exe, this executable is the responsible for initialize the tags under IoGetHistDef that have enabled History Recovery field, in the fixed area, before another executab... |
Problem Statement: Example of using History Table in SQLplus to bring values for a tag using a sampling time within a period of time | Solution: This query retrieves the information for a tag (ATCAI) every minute (sampling time) between 21-JAN-19 12:05:57.8 and 21-APR-20 12:05:57.8 (period of time):
Select CAST(TS AS CHAR FORMAT 'DD-MON-YY HH:MI:SS') as Timestamp, Value From History -- On this line the Timestamp and Value are selected from the Histor... |
Problem Statement: InfoPlus.21 not starting Error from load from memory -1075 | Solution: When InfoPlus.21 is not starting, you can check the Error Output of TSK_DBCLOCK and see the message Error from load from memory -1075.
This error normally means that the drive where InfoPlus.21 is installed does not have enough space available, therefore InfoPlus.21 is not able to start.
In order to solve th... |
Problem Statement: What does the warning message localhost: - Invalid Tag (Null) in A1PE means? | Solution: This message indicates that for one or more objects from the source graphic (Which can be .XML file from Graphic Studio) is not linked to a Tag, therefore, Name field in the Properties of the object, is empty:
please check that there are no null values on Name fields in some objects of the Graphic.
Keywords:... |
Problem Statement: How do I troubleshoot the error message All licenses are currently in use or License checkout failed? | Solution: Click on the Details>> button to determine the specific license error you are receiving.
This error message may appear due to various reasons:
1. License Error Code: -939519994
All the tokens or licenses are acquired by other users. Once enough tokens are available in the license server, users will be ab... |
Problem Statement: How do I use the user submodel option to implement the reaction kinetics in gas_bed model? | Solution: The first example C4Dehyd-props.ada is based on the demonstration example butene dehydration. It is using Aspen Properties instead of fortran procedures for the physical properties. It is also using the submodel option for the kinetics instead of fortran subroutine.
The equations for the kinetics are impleme... |
Problem Statement: There is detailed information for each available property method and models in Aspen Plus and Aspen HYSYS, but how does one pick the best property method to use in the model? | Solution: There is a Methods Assistant available in the Help guide. Also accessible from Home | Tools in Aspen Plus and from Home | Navigate in Aspen HYSYS.
The purpose of the assistant is to help users select the most appropriate property methods for use with Aspen Plus and Aspen Properties. The assistant will ask yo... |
Problem Statement: This knowledge base article describes how the time out mechanisms work between the SLM License Server and the client machine. | Solution: The SLM client (client Computer) uses a heartbeat to ensure that the server remains available throughout the use of the software. The heartbeat does a check (for the server and license) every 4 minutes. If the heartbeat finds that the license is still there, the software will keep working. If the heartbeat do... |
Problem Statement: How to write the log expression in ACM V12? | Solution: In Aspen Custom Modeler logarithm expression can be written as below:
LOGe
LOGe(x)
Natural logarithm
LOG10
LOG10(x)
Logarithm to base 10
Keywords: Log, natural logarithm, log to the base 10
References: None |
Problem Statement: Multiple Pumps Piping Configuration Example in Aspen OptiPlant 3D Layout | Solution: OptiPlant can create multiple pump configurations on a set of two or more pumps.
The example below shows a common header configuration for suction and discharge.
Following are the line list entries for Multiple Pumps Configuration:
Keywords: None
References: None |
Problem Statement: How do I shift batch flowsheet from Batch flowsheet environment to Continuous Flowsheet? | Solution: In some cases, if user have earlier developed some unit operations batch flowsheets & now he wants to shift to continuous. Below are the steps to follow:
Select complete flowsheet from Batch environment
2. Click on “Move Selection”; when user click on this option, few options will be open to move t... |
Problem Statement: What is “The Unit Procedures Diagram” in Aspen Plus Batch Process and how to use it ? | Solution: The Unit Procedures Diagrams are available as option to observe the various batch operations you have planned in BatchOp blocks (major steps – Unit Procedure) such as Reactions, Crystallization, Filtration where you can define these as unit procedures & in each procedure users can define various operations li... |
Problem Statement: Is it possible to use the short cut distillation method from PIMS AO in APS? | Solution: APS is currently able to simulate the microcuts generated through PIMS. But the current functionality in APS doesn't support cut point optimization.
Keywords: None
References: None |
Problem Statement: The SQLplus Query Writer produces this message on startup:
SQLplus Access Denied - No read access
This may be seen even if no security is implemented for the product and if the steps in this | Solution: have already been tried:
How do I troubleshoot the error, SQLplus Access Denied - No read access?
https://esupport.aspentech.com/S_Article?id=000074388
What other options are available to fix this issue?
Solution
This is a known issue for which there is a patch:
Defect 753407
SQLplus Access Denied - No ... |
Problem Statement: There are several details that can affect the simple and correct creation of a Reduced Order Model for planning that need to be addressed. | Solution: Please see the attached PDF containing the best practices for generating a Reduced Order Model using a HYSYS model for Aspen PIMS-AO deployment.
This guide covers the following topics:
Engineering and Planning Teams responsibilities
Best Practices for Aspen HYSYS
Best Practices for Aspen Multi-Case
B... |
Problem Statement: Users may notice their separators initialize to high temperatures when moving from steady-state to dynamics. | Solution: Per the HYSYS Dynamics Best Practices KB article ID 000094883 , a vapor phase will be needed in separators. Consider if you will need to add inert components to pressurize the vessel.
During initialization, the separator will calculate a vapor phase. If no vapor is present at the specified conditions, then i... |
Problem Statement: Is it possible to have a reaction set with HYSYS components and Aspen Properties components? | Solution: No, it is not possible to have a reaction set with HYSYS components and Aspen Properties components. There must be separate reaction sets for HYSYS components and Aspen Properties components.
If you try to add a HYSYS components reaction to an Aspen Properties reaction set, you will see the following error m... |
Problem Statement: How can I include Equipment Shape and Equipment Footprint data into my Spreadsheet Import/Export Report? | Solution: ACCE’s Speadsheet Import/Export Report, or API Report, has the capability of printing Equipment Shape and Equipment Footprint when the “Print equipment coordinates” option is set to “Y”.
You can find this option at the bottom of the “Equipment Specs” Form “ under Project Basis View.
Both Equipment Shape and... |
Problem Statement: Are there limitations for my project name? | Solution: Yes, the project name may not include any spaces or special characters. This restriction also applies to the entire directory.
Keywords: Project, name, spaces
References: None |
Problem Statement: How can we see a referenced DXF in OptiPlant top view in As Is mode? | Solution: Once a DXF is referenced in OptiPlant, you will need to go to Edit | Plot Plan Properties and click on “Accept”. This will make the referenced DXF visible in “As Is” mode and it will remain between changing the views until you close OptiPlant.
Related Article(s)
What are the requirements for importing 2D D... |
Problem Statement: What are the requirements for importing 2D DXF into OptiPlant? | Solution: 2D DXF Import Check List
Check list for importing 2D DXF into OptiPlant. Please check on all that apply.
A. Pre-requisite for Importing DXF
1 DXF File being imported is in lower version of AutoCAD (AutoCAD 2007 earlier)
2 Drawing file has only lines, lines, arcs, circles and text present. ... |
Problem Statement: What are the types of Aspen Basic Engineering (ABE) files and how are they used? | Solution: Aspen Basic Engineering File Types
Class Library Editor
.azcl – A class library file used in the Class Library Editor. This file can be used to edit the datamodel.
.azcs – A compiled class store file generated by the Class Library Editor. This file cannot be modified. It is used to define the datamodel in th... |
Problem Statement: Does Aspen Flare System Analyzer support Net Heating Value calculation? | Solution: In Aspen Flare System Analyzer V11, there is a new feature that supports Net Heating Value (NHV) calculation.
The NHV for Flare Tip and Tee can be calculated with saved phase properties data. A warning will appear on the Flare Tip Editor or Tee Editor if the Save Phase Properties option on the Preference Edit... |
Problem Statement: Is it possible to attach a reaction set to a HYSYS fluid package imported from Aspen Plus? | Solution: No, it is not possible to attach a reaction set to a HYSYS fluid package imported from Aspen Plus. The following error message will appear.
As a workaround, you can copy the imported fluid package. This will allow you to attach a reaction set, but any regressed or estimated parameters in the fluid package wi... |
Problem Statement: How to add a background to drawings in the Drawing Editor? | Solution: In the graphics definer, you can create a symbol then select Insert | Object and add a bitmap image (.bmp). The image must be a bitmap file otherwise a link to the image will be added instead of the image itself. Typically, you can use File | Save As bitmap image (.bmp) in any photo application. Sheet size sh... |
Problem Statement: How to align text and fields for labels in Graphics Definer? | Solution: One method is to enable Grid Snap under Tools | Options | View | Grid. Select the checkbox for Grid Snap set the insertion point for fields to corners of a grid. Select the checkbox for Grid Display to see the grid in the window. The grid sizes can be changed using Grid Spacing.
When Grid Snap is enabled, fi... |
Problem Statement: How do I adjust the default nozzle projection? | Solution: The data file that has the nozzle projection distance value is Rt_param.ans file present inside C:\ASD\Data\ANSI folder. The default value of nozzle projection is based on the pipe size and is equal to Gasket Thickness (1mm) + Large Radius (mm) + Weld Neck Flange (mm). This can be modified, if needed.
If yo... |
Problem Statement: Why is an object deleted when I select UnClaim? When an object is exclusively claimed by a project, there can be instances when selecting UnClaim deletes the object. | Solution: This problem occurs when an object is created in a project rather than the workspace. If an object is created in a project, then it is claimed by that project instantly. All changes made to the object will be claimed by that project. When you UnClaim an object, it will undo all changes made to the object. For... |
Problem Statement: After loading the process data to the AI Model Builder tool, specifying dependent and independent variables, and cleaning the data, some observations in the data validation section of the AI Model Builder are repeated, even if those were not repeated in my original data. | Solution: Once you have done the Clean Data step for AI-Driven Hybrid Models (such as Average and Steady State Detection), and move to validate it; you may have noticed that some points are repeated. This is due to the nature of the Data Analysis Tools that require the data to be evenly spaced in time.
If the added po... |
Problem Statement: Often, reactor simulation can be tricky and innacurate, because of all the variables that affect it directly, like temperature, pressure, geometry, or catalyst properties to name a few. Besides, it may not always be clear which variables affect it the most in each different case. | Solution: Using the Aspen AI Model Builder, we can create a model using plant data that can be deployed in a simulator, in this case Aspen Plus. The steps are shown in the following video:
Steps summary:
1.- Having Plant Data Available
2.- Create the AIMB project, in this case it is an AI Driven Hybrid Model for Engi... |
Problem Statement: NIST-TDE data is incorrect | Solution: Occasionally, there are mistakes in the NIST-TDE data engine. When issues are reported to AspenTech, we forward them to NIST and verify that they are fixed when a new version of Aspen Properties is released.
This knowledge base document will be used to track the incorrect data that has been reported.
V14
Fo... |
Problem Statement: Aspen Watch Event log showing MSCWatch License message every minute.
AWServer System Centralized Monitoring: CM Request is OFF. MSCWatch LICENSE 0.00000 0.00000 | Solution: Starting V11 the Aspen Watch Centralized Monitoring key (SLM_RN_APC_MISC_EM) is being check for miscellaneous tags.
The task responsible for the license check is TSK_MSC1 under IP.21 Manager.
In the event of the license error shown every minute a possible cause is that the task (MSCWatch.exe) is crashing and... |
Problem Statement: Simulations with Fortran .obj or .dll files that worked in V10 and earlier, no longer work in V11.
There is a message that says that the subroutine is missing, but it is there in the directory.
*** SEVERE ERROR
ERROR DURING DYNAMIC LINK OF USER ROUTINE(S) OR IN-LINE FORTRAN
PLEASE CHE... | Solution: Because Aspen Plus V11 was compiled with the Intel Fortran compiler 2017 and Microsoft Visual Studio
2017 as a 64-bit program, compiled user models MUST be rebuilt as 64-bit. Files (.obj or .dll) compiled using 32-bit that ran in V10 and earlier will not work.
The Intel Fortran Compiler can be configured to ... |
Problem Statement: This article explains about the Best Practice for the application scope of Aspen Process Recipe and Sequencer implementation. | Solution: When developing control strategies and packages with Aspen Process Recipe Explorer, below are the typical implementation sizes from our project experience.
a. Number of Blocks in a single Package: 50-100 Blocks
b. Number of Data
Keywords: Aspen Process Recipe
Aspen Process Sequencer
Application scope limi... |
Problem Statement: What could give a failed status when trying to use an older version's BCI xml file in newer versions like V11 and V12? | Solution: The newer versions of BCI have been upgraded to msxml6 from msxml4. In the old version, the root node BP_Document will append “:xsi” after “xmlns” automatically, then the BP_Order node won’t have the blank xmlns attribute as seen in the newer versions below:
On the new version, the default Revised schema fil... |
Problem Statement: With the ELECNRTL property method, the Clark model is used to calculate the mixture liquid molar volume. So regressing the RKTZRA and VLCLK parameters have a direct effect on the mixture liquid molar volume. However, it looks like manipulating the RKTKIJ parameters for pair of molecules also has an e... | Solution: The documentation was not quite right about the Amagat's rule. For solvents that are not water, the Rackett (mixture) model is used. For water, the steam-table is used. The two values are then combined using the Amagat rule.
The documentation has been updated and now reads:
The Clarke model calculates liquid ... |
Problem Statement: What value is used for gas constant in Aspen Plus? | Solution: The molar gas constant (also known as the gas constant, universal gas constant, or ideal gas constant) is often denoted by the symbol R. It is a physical constant that is featured in many fundamental equations in the physical sciences such as the ideal gas law and the Arrhenius equation.
In Aspen Plus, the ... |
Problem Statement: How to resolve Failed call to iAtBatchDataSource: get_Areas error received in aspenONE Process Explorer (A1PE) while trying to create a single event trend?
There is one line in the log traces on the web server (i.e. Access Denied): AtAPRM_Query::GetStartEndTimeChars - Failed call to IAtBatchDataSo... | Solution: Steps:
This issue is caused by DCOM settings.
To troubleshoot this issue, on the Aspen Production Manager (APRM) server enable DCOM logging to confirm the cause is DCOM permission related - see How to turn on DCOM logging using a GUI to troubleshoot MES client access issues? From the client machine, invoke t... |
Problem Statement: Does Aspen Plus report the actual (true) amount of the Dimer formed when using Hayden-O'Connell (HOC) or Nothnagel (NTH) equations in the vapor phase? | Solution: There is no direct way to print out the true vapor phase concentration for dimerization in the Results Summary or Report file. However, if you increase the physical properties diagnostics (Setup | Specifications | Diagnostics) to 8, the History (.his) file will print out component mole fractions based on inpu... |
Problem Statement: How to model molar diffusion of a component to another stagnant layer of a non-diffusing component | Solution: Consider oxygen diffusing through a stagnant layer of carbon dioxide (non-diffusing)
Assume: A:oxygen; B :Carbon dioxide.
Equation of continuity:
(1)
Based on the following assumptions:
Steady state
No x flux, z flux
No chemical reaction
Above assumption reduces to the following equation:
(2)
Now for binary... |
Problem Statement: When trying to open a Heat Exchanger file created in older versions it may be encountered an issue with opening the file. The old Aspen Heat Exchanger files like e.g STX, TASC and BJAC can´t be opened in Aspen Exchanger Design and Rating ( EDR). To open these extensions from these old Heat Exchanger ... | Solution: The name of the utility is SaveAsEDR.exe, and it can be found in the same folder where the EDR program is installed in.
In V10.1 and previous versions, the default location for this folder would be C:\Program Files (x86)\AspenTech\Aspen Exchanger Design and Rating V(Corresponding Version)\XEQ
In V11 and new... |
Problem Statement: In the Design tab Data of a tee or a mixer within the Aspen Hydraulics sub-flowsheet, there is a solver variable called Partial Body On Flow Area, It is needed to understand what it means before checking it | Solution: Partial Body on Flow Area is used to calculate pressure drop due to expansion/contraction caused by the change in diameter from inlet to tee/Mixer body. With Partial Body on Flow Area checked, the solver assumes that the inlet flow expands/contracts to a partial area of the tee body which is calculated from t... |
Problem Statement: How to use Aspen Plus with automation when using the EO re | Solution: strategy?Solution
It is possible to control Aspen Plus from Visual Basic, or Visual Basic for Applications (VBA) through the automation interface. ThisSolution explains how to implement this when the reSolution strategy is Equation Oriented (EO), as this differs from the way this can be done when the reSoluti... |
Problem Statement: This Knowledge Base article shows how to pull Engineering Units (ENG-UNITS) for a particular tag. | Solution: In Microsoft Excel, click on the Aspen Process Data tab and select the Current Value option
a. Enter the tag name and make sure to select the right Map information is updated
b. At bottom right hand down -> Show attributes, click on the pen icon to add more attributes along with default Value.
c. Select th... |
Problem Statement: When trying add new locations to my asset hierarchy, my EAM configuration is only returning a list of locations that already have been mapped to the Aspen Mtell database. If I try it on a blank database, an empty result list is returned with no error messages. | Solution: This can occur if the user account running the services that are trying to access the EAM system do not have sufficient privileges to the EAM system. The recommended minimum permissions is to be able to read a list of equipment and their hierarchies. No error is generated because the return of objects that ca... |
Problem Statement: When trying add new locations to my asset hierarchy, my EAM configuration is only returning a list of locations that already have been mapped to the Aspen Mtell database. If I try it on a blank database, an empty result list is returned with no error messages. | Solution: This can occur if the user account running the services that are trying to access the EAM system do not have sufficient privileges to the EAM system. The recommended minimum permissions is to be able to read a list of equipment and their hierarchies. No error is generated because the return of objects that ca... |
Problem Statement: Aspen InfoPlus.21 (IP21) Can not access a license when the Software License Manager (SLM) Server is moved or a new license file is loaded. IP.21 performs a run time license check when 21CFR11 compliance is activated in v2004 and above, or the IP.21 Health Monitor is activated in v2006, or Enterprise ... | Solution: Stop and Restart the Aspen InfoPlus.21 Task Service.
Keywords:
References: None |
Problem Statement: For an FCC, can users specify utility streams such as stripping steam, dispersion steam, regenerator air, and flue gas? | Solution: Yes, users can add utility streams, such as stripping steam, dispersion steam, regenerator air, and flue gas, connected to Risers, Reactors, Regenerators and Fractionators.
You can specify utility streams for the following locations for the FCC.
Riser Steam Inlet
Reactor Steam Inlet
Regenerator Air Inlet
Rege... |
Problem Statement: For an FCC, what are the different feed locations for the feed? | Solution: To add a fresh or recycle feed, use the Select Feed Location dialog box to specify the feed location for the feed for an FCC with more than one location.
Depending on the FCC configuration selected, the options for Feed location will vary. See tabel below for details.
Configuration Feed Location Options
One ... |
Problem Statement: What does the Emissions Manager report in Aspen HYSYS? | Solution: The Emissions Manager allows users to view the emissions of various components and component groups (such as H2S and BTEX) that each stream in your simulation would contribute upon being vented to the atmosphere or to a flare (for combustion emissions).
To use the Emissions Manager, select Emissions from the... |
Problem Statement: Is there a way to model more than 1 or 3 vessels for Fire Emergency Scenario in Safety Environment? | Solution: When specifying equipment data for the Fire Emergency Scenario in Safety Environment, starting from Aspen HYSYS V12.0 the maximum Number of Vessels users can model for Unwetted (API) and Wetted (API) Fire scenarios was increased from 3 to 9.
Please note that for the Supercritical and Semi-Dynamic Flash metho... |
Problem Statement: How to get rid off the following error messages “1926, 1905 & 1336 when trying to install/uninstall Economic Evaluation? | Solution: In order to get rid-off the following error messages:
Error 1926 during installation:
Error 1905 during uninstallation:
Error 1336 during uninstallation:
The problem is maybe from that the installer can’t add the users group with the “Full Control” to the folders:
C:\Users\Public\Documents\AspenTech\Share... |
Problem Statement: When trying to start Apache Tomcat service, it starts and stops. As per catalina log, it appears that another process is already using the port 8005. The following error message can be seen in the log file.
DD-MMM-YYYY HH:MM:MM.046 SEVERE [main] org.apache.catalina.core.StandardServer.await Standar... | Solution: This knowledge base article will show you how to check the process using the port 8005 and change the port used by tomcat.
Either open CMD and execute the command below to find which process is using the port
netstat -nao |find 8005
Based on the PID, check in Task Manager and if possible, end the process a... |
Problem Statement: How HYSYS calculate the water mole fraction content in the effluent Naphtha stream from the Crude Distillation Unit (CDU)? | Solution: Naphtha is a draw stream from 3-phase condenser and the calculation is similar to any other draws. Furthermore, the 3-phase condenser is just a column stage and in each stage, Aspen HYSYS will make sure that each of the component flows and the heat flow in and out will be balanced for each stage. Also, for th... |
Problem Statement: Are there any alternative ways to retrieve stream results other than Stream Reporter (HSR) file in Aspen HYSYS? | Solution: There are other ways to retrieve stream results in Aspen HYSYS other than HSR.
The HYSYS Workbook and Model Summary Grid (both in the Home Tab > Summaries section) are the closest equivalent native functionalities to what the HSR provides.
Workbook: This is the native functionality that is most similar to ... |
Problem Statement: How to get rid-off the following message “FUNCTIONAL GROUP GENERATION FOR THE UNIF-LBY METHOD CANNOT BE COMPLETED FOR COMPONENT X. THE FOLLOWING ATOMS WERE NOT MATCHED” in physical property system? | Solution: The warning message mean that the component pair is not available with UNIFAC and other available methods (for group contribution). Users need to rely only on the experimental values. Due to bonding group unavailability, only experimental values need to be used and regressed.
The reason is that you have sele... |
Problem Statement: While defining an ion from scratch and providing only CHARGE, IONTYP & S025C a value for MW is shown after retrieving parameters. Has this default value any meaning? | Solution: By default, the molecular weight is calculated from the molecular structure.
When PLXANT is set to -1e20, the MW is one of the many parameters defaulted. When the user retrieves parameters, some values are displayed. These nominal values are not truly random. There is nominal value for MW, which is set to 86... |
Problem Statement: What are user variables? How can I use them? Is there list of sample examples in the knowledge base? | Solution: provides examples and describes their usage.
Keywords: Ole, automation, variable, user, user variable
References: Stream
Creates a reference stream in steady and dynamic state
114177
Exergy
Calculates the exergy for stream
109771
Feed Stage
Optimizes Feed Stage
109976
GroupC6+Comps
Calculate a grouped composi... |
Problem Statement: Is there an option for selecting disc-and-doughnut (disc and ring) baffles in Aspen Shell & Tube Exchanger (EDR)? | Solution: Unfortunately, Aspen Shell & Tube Exchanger (EDR) does not have an option for selecting disc-and-doughnut baffles as there is very little reliable data on this type of heat exchanger internal. Since we cannot provide methods for accurately predicting the performance of these baffles, this option has not been ... |
Problem Statement: Sometimes when using Automation with MS Excel, it’s hard to find the backdoor name (or moniker) for an Aspen HYSYS variable. How can I find it in a simple way? | Solution: Watch the below video for an overview, or read the instructions further down.
You can create a script using the Script Manager while performing an action involving the variable in Aspen HYSYS, and you will be able to find the backdoor name for it in the text file created for the script.
For instructions on h... |
Problem Statement: Can you import a pipeline elevation profile in Excel into a Pipe segment? | Solution: Yes, this is easily done by utilizing the workbook tool.
Watch the below video for an overview, or read the instructions further down.
1. Create the pipe segment unit object and append and clone segments using the Rating -> sizing tab.
2. Create a workbook from the home tab summaries section and click 'Setu... |
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