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Problem Statement: What happens to my session of HYSYS if I lose connection to my network license server? | Solution: The following series of steps will show what occurs if your client machine running HYSYS loses connection to your network license server:
1) After the machine becomes disconnected from the network license server, the two license error messages (as seen below) will pop up on the screen after 5 minutes of no co... |
Problem Statement: Why must property indices like RVI and PPI be entered directly into Table MICROCUTS? | Solution: When using Table ASSAYS, property indices like RVI, PPI and more can be defined by a calculation that resides in Property Calculation Formulas or through entries in Table INDEX. PIMS will find RVP or POR information in the Assay table and use the provided relationship to calculate the corresponding index val... |
Problem Statement: How can I create an input | Solution: file from a previous run?
Solution
In Aspen PIMS V11, there is a new feature that creates an inputSolution file from a previous run that is saved in the results database. To use this feature, follow these steps:
Select Run | Create InputSolution File (red box)
Select the desiredSolution run from which you’d ... |
Problem Statement: How to verify aspenONE Process Explorer was installed successfully? | Solution: Steps to validate if aspenONE Process Explorer can launch and trend historical data successfully.
1) Launch aspenONE Process Explorer by opening the browser and navigating to http://<servername>/ProcessExplorer/.
2) Click on the Process Explorer icon to launch the application.
3) Click on the la... |
Problem Statement: When you list the Batch handles using the Aspen Production Record Manager Excel Add-in you will see that the Batch Handles are sorted in the descending order. This is as designed and cannot be changed when the most recent batches option is used as condition.
This Knowledge Base Article show how to c... | Solution: To change the order of how the Batch Handles are displayed in the Excel Add-in when using filter time condition, you can edit the Production Record Manager.Profile.XML located in the folder c:\programdata\aspentech\production record manager\
If the BatchAscFilterbyTime flag is set to 0 or not set in the prof... |
Problem Statement: While upgrading Aspen InfoPlus.21 Server, do I need to upgrade other MES application? | Solution: If Manufacturing Execution systems suite products are installed on single machine then you must upgrade all the products while upgrading Aspen InfoPlus.21 server. If Manufacturing Execution systems suite products are installed on multiple different machines then you may choose to upgrade products based on cri... |
Problem Statement: What are my choices for modeling crude unit cut points? | Solution: In Aspen PIMS there are 3 ways to model crude cutpoints. Of course, customized structure can be made to handle additional options, but these are the 3 standard ways to model crude unit cut points with PIMS.
Classic PIMS crude structure
Main cuts are designated and characterized
Small swing cuts are configure... |
Problem Statement: After adding a new Aspen Production Record Manager (APRM) Area, and configuring the triggers and characteristics, batches are not being recorded. In the <area>.errors log file, the following message is displayed:
1/24/02 6:32:01 PM : Failed while looking up the batchB21BCU-55072: Failed while looking... | Solution: The error message is about the action that the BCU is performing. Before creating a new batch, it tries to look up inside the APRM database whether a batch with this designator value already exists. In this case, it cannot find these previous designator values.
Under these circumstances, the APRM database nee... |
Problem Statement: Is it possible to regress Henry parameters for light gases in a polymer system? | Solution: Yes,it is possible to regress Henry parameters for a polymer system though the polymer needs to be specified as Oligomer in the regression.
An example of fitting the solubility of Nitrogen in polyethylene is attached (Estimate Henry parameters for N2 in polyethyleneV9.bkp). This file will run in Aspen Plus V... |
Problem Statement: In our refinery there are multiple modes to operate a unit and we want Aspen PIMS to select the best financial choice. | Solution: The best approach is to use binary variables. In the example attached component AAA enters to reactor RX1. This reactor can operate in 3 modes. Mode AA1 gives a yield of 80% BBB, 10 % CCC and 10% DDD; mode AA2 10% BBB, 80% CCC and 10 % DDD; mode AA3 10% BBB, 10% CCC and 80% DDD. The outputs of the reactor are... |
Problem Statement: Does the API insert historical data more efficiently than SQLplus? | Solution: First of all, it does not matter how the inserted data is written (SQLplus or API), the results will be the same. Any history writer puts history events in the event queue. These events are then de-queued by the archive program and are placed in the archive filesets. It is the archive program that is responsi... |
Problem Statement: How to define Temperature approach in REquil block? | Solution: REquil is usually used to model a reactor in which reactions reach or nearly reach equilibrium states. In practice, reaction equilibrium states are hard to reach because of limited residence time in it. As a result, the Temperature approach is usually used to determine how far the real reaction is away from t... |
Problem Statement: What is the difference between 'Def Pnlty' and 'Exc Pnlty' columns from Product screen and 'ExcCost' and 'DefCost' from the Optimize Blend screen? | Solution: In the product screen, 'Def Pnlty' and 'Exc Pnlty' columns are used to penalize any product property not within their MIN and MAX property specification range. You can also consider them similar to infeasible breakers.
For example, in the product screen shown above, we have RVP spec MAX=9. Then any product R... |
Problem Statement: Why my Aspen Mtell View page does not load up completely?
or you may see below error message:
HTTP Error 404.7 - Not Found
The request filtering module is configured to deny the file extension. | Solution: This article explains how to address Aspen Mtell View page loading issue. User's will experience this issue if some file extensions were blocked or denied on the Aspen Mtell Server machine.
1. Login to Aspen Mtell Server
2. Launch Internet Information Services (IIS) Manager
3. Expand Server -> Default Web ... |
Problem Statement: This knowledgebase Article describes in detail how Tokens are consumed by APC Desktop (client) applications. | Solution: Starting in V7.1, under Token-based agreements, all APC Desktop (client) applications use a single license key. This key (SLM_APC_Builder ) is checked out both at install and run time. These APC Desktop Applications include:
Product
Sub Program
Aspen Process Control
APC Builder
Aspen DMCplus
Model.exe
Aspen D... |
Problem Statement: For an immiscible system, is it possible to create a TXXY plot?. | Solution: Starting in V11, Binary analysis includes new types Txx, Txxy, and Pxxy which compute liquid-liquid equilibrium in addition to or instead of vapor-liquid equilibrium. With the new types you can generate Txy and Pxy plots which include the liquid-liquid behavior as well as the vapor-liquid behavior.
TXXY is a... |
Problem Statement: Can you specify different binary parameters for groups in the same UNIFAC main group | Solution: UNIFAC functional groups are categorized into main groups and subgroups. A given main group can have more than one subgroup. Each subgroup has a unique group number assigned to it for identification purposes. Non-ideality is described by the group-group binary interaction parameters. The group interaction ... |
Problem Statement: Flowsheet Analysis may send a WARNING to the Control Panel regarding INFORMATION TEAR variables (see the example below). What are INFORMATION TEAR variables, and how can they be converged?
* WARNING DURING FLOWSHEET ANALYSIS
BECAUSE TEAR-VAR=NO IN CONV-OPTIONS, AN INFORMATION TEAR:
... | Solution: Calculator blocks were originally designed as a feed forward controller for an Aspen Plus simulation. However, you are not prohibited from using a Calculator block in feedback mode instead of feed forward mode. The Calculator variables that are used in feedback mode are the INFORMATION TEAR variables. One exa... |
Problem Statement: How to use SFE Assistant in Aspen Plus? | Solution: Aspen Plus has 2 kinds of solid components. One of them is Conventional Inert Solids (CI Solids) and the other is Nonconventional Solids (NC solids). CI solids can be used to represent the solid phase of pure components (for example ice is the solid phase of water).However, CI solids are inert to phase equili... |
Problem Statement: How to do of Aspen Properties Enterprise Database (APED) using SQLLocalDB
If you have installed Microsoft SQL Server Express then the information contained in this knowledge base article does not apply.
Please refer to KB Article 126674 for Aspen Properties Enterprise Databases being used with SQL Ex... | Solution: Important: Always run the Aspen Properties Database Tester (with run as administrator) first to know the database status connection.
Located at Start | All Programs | AspenTech | Aspen Properties
If the connection status fails, follow the instructions below to restore the databases.
Method 1: Database Te... |
Problem Statement: If you have installed products like Aspen InfoPlus.21 or Aspen Process Explorer in version V7.2 or above with licenses provided under an Old Commercial Model (OCM) perpetual or legacy token term contract (you had to use the Token Media), then you do not have to reinstall the software after you have s... | Solution: A conversion tool called Token Conversion Utility has been developed which CS&T or your token administrator can send you to avoid reinstallation with the Token Media.
For Windows 7 and 2008 server, the utility must be run by an administrator user, so the executable has been created so that it does this auto... |
Problem Statement: For a highly immiscible system, why is the vapor phase line in a Txy Analysis plot for a binary mixture a straight line with no points? This does not capture the vapor bubble point line.
For example for a CS2-Water mixture: | Solution: The problem is that for a highly immiscible vapor-liquid-liquid (VLLE) system, the liquid compositions are close to 0 or 1 in each phase. In order to get a range of vapor compositions, vary the mass fraction on a logarithmic scale from 10-6 to 1 to get results for the temperatures matching vapor compositions.... |
Problem Statement: Why can I not see the Aspen Calc Schedule objects that I migrated from another server? | Solution: When migrating the calculations and libraries from one server to another, you need only to copy the .atc files associated to the calculations and libraries from the old server locations and paste them into the associated folders on the new server. Unlike the migration of the calculations and libraries for Asp... |
Problem Statement: How to train a Machine Learning Agent using the Background Server service? | Solution: User’s machine system resources will used when training the Machine Learning agent using Background (Client). AspenTech recommends using Background (Server) option when training the Machine Learning agent using Aspen Agent Builder on the user’s machine.
Launch Aspen Agent Builder
Select Machine Learning tab... |
Problem Statement: Are there any tips to resolve memory errors for a large simulation with many components?
This error occurs:
SYSTEM ERROR
UNABLE TO ALLOCATE (large number) BYTES OF CONTIGUOUS MEMORY.
REFER TO TROUBLESHOOTING HELP. | Solution: This can happen with large simulations with complex operations and many components. The engine requires a chunk of continuous memory for any one block. For example, if a RadFrac distillation column has a big number of stage and components and the engine has a check to see if enough resources are available,
... |
Problem Statement: Where do I find help for automating Aspen Plus in Microsoft Excel or other applications? | Solution: The Aspen Plus Windows user interface is an ActiveX Automation Server. The ActiveX technology (also called OLE Automation) enables an external Windows application to interact with Aspen Plus through a programming interface using a language such as Microsoft's Visual Basic. The server exposes objects through t... |
Problem Statement: Calculations may fail if an Aspen InfoPlus.21 (IP21) server is renamed or IP21 is moved to another system. Calculations that missed an execution or were scheduled to activate around the restart time will activate when the AspenTech Calculator Engine service is started (or soon after), and fail becaus... | Solution: ORIGINAL IP21 SERVER STILL RUNNING:
If the original IP21 server is still RUNNING then the calculation bindings can be changed by using the Change InfoPlus.21 Server dialog. Right click on the Aspen Calc server name and select Change InfoPlus.21 Server to change the bindings. It's also a good idea to validate ... |
Problem Statement: This knowledge base article outlines the steps required to move the various Schedule Groups from one Aspen Calc Server to another, while maintaining the calculation associations of each group. | Solution: In order to move the schedule groups from one Aspen Calc server to another, you must move the schedules.atc file. The default location of this file is:
C:\ProgramData\AspenTech\Aspen Calc\Bin\schedules.atc
Before moving the file, you must close the Aspen Calc application window and stop the AspenTech Calculat... |
Problem Statement: Many customers use Aspen SQLplus to query the DiskHistoryDef definition records for information about their filesets. However, the scripts that used to work prior to InfoPlus.21 v6.x won't return any information on filesets which are numbered greater than 113. Why? | Solution: As of InfoPlus.21 v6.0, when the number of filesets was increased beyond the previous limit of 113, the information about them is now stored in a shared memory space and cannot be accessed by querying DiskHistoryDef records. Instead, a new InfoPlus.21 component, AtIP21HistAdmin.dll, now implements COM methods... |
Problem Statement: What are the various prediction errors parameters in Aspen DMCplus and what do they mean? | Solution: PREDER & ACPRER: The cycle to cycle prediction (PREDER) is of little use because it tends to be noisy and random. What we look is the accumulated prediction error (ACPRER) over time and for its drift up or down. Ideally, the ACPRER should be around zero, a drift up or down indicates a model mismatch.
When th... |
Problem Statement: After we install APS/MBO on our machine and we go into ORIONDBGen.mdb file to see the database structure, do we need to modify anything in that file? | Solution: The answer is no. Please keep the file as it is. The database structure is already pre-defined by Aspen and you do not need to check any checkboxes. For example, if you noticed a table EV_PARAMS (which sounds familiar) wasn't checked for both APS and MBO, you don't need to check it manually either. If the tab... |
Problem Statement: How pipe flow regimes are calculated in Aspen Plus? | Solution: Pipe and Pipeline models predict patterns, often called flow regimes, for two-phase horizontal and upward flow.
For horizontal flow (-20 to +20 degrees), the method of Taitel and Dukler, 1976 is used.
For upward flow, the method of Taitel, Bornea, and Dukler, 1980 is used.
For horizontal flow up to an elevati... |
Problem Statement: Which variable should be used for the interfacial area factor in a Rate-based column?.I see CA-AREA-FACT, PR-AREAFACT, and TR-AREAFACT. Which one should be used? | Solution: Interfacial area factor is the scaling factor for interfacial area. The area predicted by the correlation is multiplied by this factor. The variable names are different for the new Column Analsys and for the legacy tray and pack rating.
CA-AREA-FACT is the Scale factor of interfacial area used in rate-based ... |
Problem Statement: What is the difference between Allocated Days and Total Days in the Equipment Rental Summary Report? | Solution: The Allocated Days are the days that are directly allocated to a particular task in the project (e.g. backhole digging of a foundation). The Total Days are the allocated days rounded up to the next standard rental period, or in some cases, it may represent equipment that is required on the job but not directl... |
Problem Statement: Why cannot I find UNIFAC group 3920 in Components | Molecular structure | Functional Group ? | Solution: Groups 3815, 4005, and 4110 through 4210 (including 3920) are only used with the PSRK equation of state as normal components. Aspen Property Constant Estimation System does not support using PSRK as an estimation method, so these groups cannot be entered on the Components | Molecular Structure | Functional Gr... |
Problem Statement: Is it possible to manually specify the entrance and exit loss for the Pipe block? | Solution: This example shows how to specify the entrance and exit loss for the Aspen Plus PIPE unit operation model based on velocity head using a design specification. User-specified correlations to represent valves, orifices or fittings not supported by the PIPE model may be implemented using this method.
If the eq... |
Problem Statement: What is the PPR78 Property method?. | Solution: In V11, there is a new Property Method PPR78 for the Predictive PR equation of state. This property method can be used to predict VLE from structure using the Peng-Robinson equation of state with the “kij” binary interaction parameters estimated from molecular structure. It combines the 1978 Peng-Robinson mod... |
Problem Statement: How do I configure the Aspen Mtell Log Manager? | Solution: ThisSolution describes the workflow for configuring the Aspen Mtell Log Manager to view diagnostic information about the Aspen Mtell system from a web browser.
Sends email reports at scheduled intervals to those administering the system about errors and/or warnings that have occurred in any connected Aspen ... |
Problem Statement: What are the variables that are available for checking the status flags of various Aspen Plus features from Variable Explorer? | Solution: After a run is complete, in order to check for the run-status of Aspen Plus calculation through VBA Automation, following status flags can be called from “Root -> Data -> Results Summary -> Output” of the Variable Explorer window:
CSSTAT – provides status of Case Studies
CVSTAT – provides status of Convergenc... |
Problem Statement: Are there any tips to resolve memory errors for a large simulation with many components?
This error occurs:
SYSTEM ERROR
UNABLE TO ALLOCATE (large number) BYTES OF CONTIGUOUS MEMORY.
REFER TO TROUBLESHOOTING HELP. | Solution: This can happen with large simulations with complex operations and many components. The engine requires a chunk of continuous memory for any one block. For example, if a RadFrac distillation column has a big number of stage and components and the engine has a check to see if enough resources are available,
... |
Problem Statement: The wait for async message in Cim-IO transfer-records indicates the CimIO client is waiting for
an asynchronous reply from Store & Forward (communication-acknowledge).
The problem persists after a clean start (see | Solution: #103176).Solution
The message may clear itself after a short time. If it does not clear then here are a few items to check.
Check the prerequisites of Store & Forward.
1. Make sure Asynchronous or Unsolicited communication works fine WITHOUT store & forward enabled.
o switch off Store & Forward i... |
Problem Statement: How can I model bonus price and/or penalty for a blend specification constraint? | Solution: 1) Bonus price may be awarded to products with blended quality exceeding specification minimum
2) Conversely, penalty may be levied on products with blended quality below a pre-determined target minimum
Example
*TABLE
ROWS
*
TEXT
SLACK
NSPGDSL
*
NSPGDSL
SPG MIN SPEC FOR DSL
1
UBALD... |
Problem Statement: How are the individual parametric cases initialized? | Solution: When a parametric run is made, the base case is solved first. TheSolution of this is used as a warm-start for all the parametric scenarios. Because of this, it does not matter in which order the parametric variables are listed in the PARAOBJ table – they will all be initialized identically.
Keywords: None
R... |
Problem Statement: How do you report Stream Results in different units of measure from the inputs? | Solution: By default, the Stream Summary and Global Data displayed on the flowsheet use the Global Units of Measure defined in the Units area of the Home Ribbon.
However, a different Unit Set can be selected on the Flowsheet Options dialog found by going to the File Options Flowsheet sheet or by clicking on the down a... |
Problem Statement: What is the correct way to move existing calculations from one Aspen Calc server to another? | Solution: Here is the correct way to move existing calculations from one Aspen Calc server to another.
Older Aspen Calc calculation and formula files are directly compatible with most recent Aspen Calc Versions. You can just copy all the .atc files from the bin,calc and lib sub-folders under C:\ProgramData\AspenTech\As... |
Problem Statement: CIMIO-for-PI interface always read C:\Program Files (x86)\PIPC\dat\pilogin.ini [Defaults]
[Defaults]
PIServer=PIServer1
However, PILOGIN.INI only can contain one default server | Solution: Wordaround to update pilogin.ini PIServer=XXXX when each PI DLGP startup.
Steps are as following:
1).Create pilogin_PI1.ini in which [Defaults] PIServer=PIServer1
Create pilogin_PI2.ini in which [Defaults] PIServer=PIServer2
2).Modify cimio_pi_start.bat as below.
…
COPY C:\Progra~2\PIPC\dat\pilogin... |
Problem Statement: What is AspenTech's policy regarding Microsoft updates with the aspenOne Manufacturing Suite products? | Solution: Microsoft frequently releases individual updates for the Windows operating systems to fix defects and to patch security loopholes. This knowledge base article describes AspenTech's policy towards application of Microsoft updates on server and client computers which use the Manufacturing Suite products.
AspenT... |
Problem Statement: This script will return the last known good value of a tag historized in Aspen InfoPlus.21 | Solution: You can use the SET MAX_ROWS=1 so that you just get one row. A query such as SELECT ip_trend_value FROM atcai WHERE ip_trend_qlevel='good' reads data from the most recent time backwards. So, the complete query would be:
SET MAX_ROWS=1;
SELECT ip_trend_value FROM atcai WHERE ip_trend_qlevel='good';
Keywords: S... |
Problem Statement: This knowledge base article outlines the reasons that can cause the Aspen Audit & Compliance Manager overflow queue to fill up quickly. | Solution: Usually when there is a problem in which the overflow queue fills up very quickly the problem is associated with the relational database connection. The following are the possible causes for the overflow queue to fill quickly.
- Aspen Audit & Compliance Manager can't connect to the relational database
- The... |
Problem Statement: How is it possible to enter a non-databank ion and a non-databank volatile electrolyte? | Solution: An example on how to enter a non-databank ion and a non-databank volatile electrolyte such as amine is attached.
The new amine's parameters are estimated using the property constant estimation system (PCES) using its molecular structure. The molecular structure is entered on the Properties Components | Molecu... |
Problem Statement: How to configure Aspen Mtell Adapter for OSIsoft PI AF to connect OSIsoft PI Data Archive Server | Solution: To setup Aspen Mtell Adapter to connect OSIsoft PI Data Archive Server user will need to install Pi AF Client application on the Aspen Mtell server.
Install PI AF Client application
1. Aspen Mtell V11 supports OSIsoft PI Data Server 2016 and 2017.
2. Install PI-AF-Client_2017-R2_.exe for Aspen Mtell V11
Val... |
Problem Statement: How can I create reports of my Aspen Plus simulation results? | Solution: There are multiple options you can employ to display and produce results from an Aspen Plus simulation. This document will list and summarize the most common ways.
1) Stream Results
Standard stream results can be viewed at multiple locations within the Data Browser. Each stream within the Streams folder, a... |
Problem Statement: Hundreds of thousands of cimio_c_changeover.exe messages are being received daily from Aspen InfoPlus.21 into the Aspen Audit and Compliance Manager. A typical message reads as follows:
*TSK_DETECT*,*3 IO_SECONDARY_STATUS* changed from *ON* to *ON*.
This Knowledge Base article shows how to stop the a... | Solution: In order to reduce the number of undesired audit messages generated by cimio_c_changeover.exe, please execute the InfoPlus.21 utility ChangeAuditAttribute.exe, as described in Aspen KB article 111028 , and change the current value of the attribute AUDIT_PROPERTY to Never for the record IOEXTERNALFTDEF and the... |
Problem Statement: How do I change the services account on Aspen Mtell Server? | Solution: During installation and configuration it's recommended to use services account. The services account and its password used during installation and configuration can be changed, if required.
As the configuration varies for every customers, update the account or password where ever it's applicable. The below p... |
Problem Statement: What is the pre-Release 8 algorithm option for Regression? | Solution: The pre-Release 8 algorithm is an option provided for compatibility with an old algorithm based on the original Britt-Luecke algorithm (used before 1990, release 8). This option enables users to reproduce the results from this old algorithm. If Aspen Plus is not used on DOS or Unix (very old versions), then t... |
Problem Statement: How to rate Multiple Downcomer (MD) Trays under Column Internal section in Aspen Plus? | Solution: RadFrac with Column Analysis now supports trays with lattice downcomers. This modern style of tray allows greater liquid load than conventional trays, and up to 12 downcomers per tray. In these trays, the downcomers on each tray are rotated 90 degrees from the downcomers on adjacent trays, so the overall grid... |
Problem Statement: How to model Vapor Compression Heat Pump Assisted Distillation (HPAD) Columns with Multi Downcomer (MD) Trays? | Solution: Progressive depletion of conventional fossil fuels with increasing energy demand and federal laws on environmental emissions have stimulated intensive research in improving energy efficiency of the existing fractionation units. In this context, the vapor compression Heat Pump Assisted Distillation (HPAD) sche... |
Problem Statement: How to delete Petroleum assay created in Aspen HYSYS V11 if you want to save your simulation file as .xml file format to use it in lower HYSYS version such as V10.0 or V9.0? | Solution: Open HYSYS simulation in Aspen HYSYS V11
Click on Properties environment
Press down CTRL + SHIFT + P at th esame time to get Petroleam Assay backdoor window.
Delete the Petroleum assays
Aspen HYSYS will allow you to save your simulation as HYSYS .xml file which can be used to open it in HYSYS lower versions t... |
Problem Statement: Why I did not receive any email notification when the alert was triggered?
System Health Message:
Live agent [agent name] for asset [asset name] triggered but no notifications were sent because there is an existing alert. | Solution: In order for two different emails to be sent for two different agents on the same asset it is necessary to deploy those agents in different Live Agent Group. If an alert is triggered for an agent and it's part of Default Live Agent Group, then other agents for similar asset will suppress the alert.
To check... |
Problem Statement: How to configure Aspen Watch Dog Service to alert when critical services are down? | Solution: Using Aspen Mtell System Manager you can configure the Aspen Watch Dog to get notifications whenever Asset Sync, Work Sync, Agent Service, training service are not working. This article will help you to configure Aspen Watch Dog service and all critical services to auto start if failed.
Configure Aspen Watch... |
Problem Statement: How to delete an Agent, Data Set, Equipment Set, Asset, Location and Site in Aspen Mtell? | Solution: This article will help the user to delete Agents, Data Set, Equipment Set, Asset, Location and Site using Aspen Mtell System Manager and Aspen Mtell Agent Builder.
Procedure to delete Live Agent in Aspen System Manager
1. Launch Aspen Mtell System Manager
2. Select an Asset within Equipment tab
3. Select A... |
Problem Statement: Old models created in Aspen Plus 9.x with Fortran blocks or models with Calculator/Fortran blocks give the following error message in Aspen Plus 10:
*** SEVERE ERROR
COULD NOT RESOLVE USER OR IN-LINE FORTRAN SUBROUTINE(S): SUBROUTINE ZZFORT IS MISSING
If a Compaq (or formerly, Digital) Visual Fortran... | Solution: Yes, under some circumstances.
Aspen Plus has a built-in Fortran interpreter that can handle many Fortran commands. When the built-in interpreter encounters a command or format outside of its scope, it issues the above error message. This error is a request to make an external Fortran compiler available to ha... |
Problem Statement: When Should I Change my Feasibility Objective Factor? | Solution: In PIMS-AO, you may see a pattern in the execution log where there are intermittent small infeasibilities. The case solves to a feasibleSolution however, these small infeasibilities are listed for many iterations (in the last column of the iteration list in the execution log). This can be a sign that the Fe... |
Problem Statement: Multiple AspenTech applications, such as aspenONE Process Explorer (A1PE) and Aspen Production Record Manager (APRM), include the ability to send -email messages to users. In order to send e-mails, however, SMTP must be properly functioning on the specified computer. This | Solution: provides a couple options for verifying the proper functioning of an SMTP Server.
Solution
Testing the SMTP Service
A quick telnet session can confirm if the SMTP server is running and accessible. To test a specific SMTP server (either locally on the SMTP server or from a remote client machine), open a comman... |
Problem Statement: We have some IP_TextDef records that we want to insert data into for the past time. But before we do this, we need an estimate of how much disk space we will need for them. How much disk space is needed to insert a historical value for an IP_TextDef record? | Solution: The IP_TextDef record details in the Aspen InfoPlus.21 Definition Editor shows the IP_#_OF_TREND_VALUES Repeat Area Summary table.
From this table, we could find the field data types for the four fields included in one historical value.
IP_TREND_TIME: XTimestamp -- 8 bytes
IP_TREND_QLEVEL: 5-bit Unsigned Int... |
Problem Statement: Why hourly TDS is showing minutes granularity when using CSV Datasource?
TDS is set to hourly, but data can be seen coming through every minute | Solution: User will experience this issue if Interpolation mode is set to none within CSV Datasource.
1. Launch Aspen Mtell System Manager
2. Click Configuration tab and select Sensor Data Sources
3. Select CSV Sensor Data Source
4. Select either Linear or Stair Step Interpolation Mode to interpolate data
5 Click Save... |
Problem Statement: How to establish Aspen InfoPlus.21 for ProMV connection with Cim-IO? | Solution: Once you have Installed and configured a Cim-IO interface, you can now establish a Cim-IO IP.21 connection.
1. Start Cim-IO IP.21 Connection Manager.
2. To begin configuring a connection, click Create a new one.
3. The Cim-IO IP.21 Connection Wizard will appear. Enter a device name that represents the conne... |
Problem Statement: CLP kicked off when one of the participating DMCplus controller was turned off | Solution: Use the table below with the info from the controller and use the rules of thumb below to determine appropriate timing. Also refer to the DMCplus Composite Users Guide,Solution #105590.
Tier Critical CTOFF CLPTIME
FURNADMC 1 0 0 45
FURNBDMC 1 0 0 45
FURNCDMC 1 0 5 45
FURNDDMC 1 0 10 45
FURNEDMC 1 0 15 45... |
Problem Statement: If a tag (data record) in Aspen InfoPlus.21 receives a value (perhaps a positive value indicates that a machine is running and a 0 (zero) indicates that it is not) and we want to test that value, report on it, and cause another different record to receive that value (but only if it is a positive valu... | Solution: This example uses tags defined against either IP_AnalogDef or IP_DiscreteDef. The record we read from is called 'RECSource' and the one receiving the values is called 'RECTarget'. Please substitute appropriate record names for RECSource and RECTarget when using the SQLplus code and in the QueryDef record th... |
Problem Statement: How to import asset hierarchy information in Aspen Mell System Manager? | Solution: 1. Open Aspen Mtell System manager
2. Select the Equipment Tab
3. Select the Import object button in the above bar
4. Select Enterprises
5. Navigate to the file where the equipment sets are stored
6. Make sure all import fields are processed with no error messages and then click ok
7. Click on the import o... |
Problem Statement: Mtell System Manager prompts the following error upon Login (Enabled Mtell Security)
Error Message:-
(Default Exception Handler) Application Exception: Number must be either non-negative and less than or equal to Int32.MaxValue or -1. Parameter name: dueTime | Solution: This error message will prompts when Aspen Mtell Security Timeout is configured above 35791 minutes.
1. Launch Aspen Mtell System Manager
2. Click Configuration tab and select Settings and click Security Settings
3. Set the Timeout After Value below 35791 Minutes
4. Click Save
The changes will take affect ... |
Problem Statement: Why do I sometimes get the message that the molecular weight (MW) for a component is different than the molecular weight calculated from the formula? Which one is used?
The message is similar to the following:
MW AVAILABLE FOR COMPONENT GE IS DIFFERENT FROM MW CALCULATED
FROM FORMULA (A... | Solution: By default, the molecular weight.is calculated from the atomic formula. Molecular weight is available in all Aspen Properties databanks. However, the databank MW value may not contain enough significant figures for certain applications for which atomic balance is important, such as reactor modeling. Calculati... |
Problem Statement: Getting Vectors from an Excel Spreadsheet into Aspen DMCplus Model | Solution: Getting Vectors from an Excel Spreadsheet into AspenDMCplus Model.
1. Save file from Excel as a Tab delimited text file.
2. Invoke Aspen IQModel, new a project and click Specify Data, accept the default choice by click OK button.
3. Select the file at dialog Select a file with input data and click Open but... |
Problem Statement: Is it possible to use an Extract block with a petroleum assay? | Solution: The Extract block is used to model the rigorous counter-current extraction of a liquid with a solvent.
The NRTL and UNIQUAC binary parameters for water and pseudocomponents are intended for use in LLE calculations, as water and hydrocarbons tend to form two liquid phases. These interaction parameters are est... |
Problem Statement: How to include Vol.% Curves or Wt.% Curves in stream results? | Solution: After a successful run, Vol.% Curves / Wt.% curves can be analyzed for the specific stream from Stream Analysis (available under home tab) and by selecting the Distillate curve.
In case, if this distillate / petroleum curve analysis must be performed for all the available streams during every run and to be v... |
Problem Statement: My Learning Performance Metrics don't match the Agent Performance Metrics | Solution: The Sample Learning Performance matrix is calculated at the end of training on the entire data set date range, and is entirely based off the default metrics for an agent (minimum alarm duration, probability threshold, etc.).
This is an example of the Learning Performance Metrics straight after training
The... |
Problem Statement: How do I register a CAPE OPEN property package (cota) file? | Solution: The CAPE OPEN property packages exported from Aspen Plus are automatically registered on the computer from which they have been exported. For CAPE OPEN property packages exported on another computer, you need to register them. In V8.8 and earlier, the CAPE OPEN property package manager cotappm.exe can be used... |
Problem Statement: How to estimate distillation column relief load for reflux failure scenario? | Solution: Relief calculation is one of the most discussed aspects of chemical engineering design. Licensors and American Petroleum Institute (API) specify the broad boundaries of “dos” and “don’ts” for relief system analysis and sizing. Still, much is left for engineering judgement to define the optimum safe design.
T... |
Problem Statement: Why a site name will not appear in System Manager but will appear in Agent Builder?
When a site with the same ID as its enterprise is imported into Aspen Mtell System Manager via csv file, and the csv file does not contain a Site UID, the new site will not appear in System Manager even though it app... | Solution: An enterprise and the sites under it should not share the same ID. The Enterprise ID and Site ID should match your EAM system, so please check your EAM system to confirm, as the IDs are same.
Note: When create a new Site with the same ID as its enterprise is not allowed while entering the asset hierarchy... |
Problem Statement: How to create Live Agent Groups? | Solution: When a live agent is deployed, it is grouped by Live Agent Group. Live Agent Group decide how agent will behave when an alert is triggered. If an alert is triggered for an agent and it's part of Default Live Agent Group, then other agents for similar asset will suppress the alert.
How to create a live agent... |
Problem Statement: Crystallizer Model for PET, PBT process in Aspen Plus | Solution: The crystallizer model in Aspen Plus is intended for conventional chemicals that crystallize fromSolution due to super-saturation conditions. It considers nucleation and growth of the particles. This model is not appropriate for modeling solidification from the melt phase or for polymers in general.
Polymers... |
Problem Statement: Where are aspenONE Process Explorer plotting comments stored? | Solution: aspenOne Process Explorer stores all comments in a record named Comments defined by IP_CommentDef.
Keywords: Comments
InfoPlus.21
References: None |
Problem Statement: When you attempt to connect Aspen Simulation Workbook (ASW) to an Aspen Plus model, you get the error message failed to create COM object Apwn.Document.xx.0. The problem occurs only when Excel is not running as a local administrator. | Solution: Excel does not normally need to be a local administrator to launch simulation models from ASW.
One possible cause is that some program such as the Appsense Application Manager can interfere with privileges for starting applications.
TheSolution is to disable Appsense and connect to the model from ASW. Once ... |
Problem Statement: How to install and configure Remote Simulation service on a Remote Server for remote ASW applications? | Solution: Aspen Simulation Workbook allows you to run simulations remotely over the network to take advantage of faster computers or applications which you do not have installed locally.
A remote model runs under the user profile configured to run the Aspen Remote Simulation Service when the service is installed on th... |
Problem Statement: The Foxboro I/A OPC server for AW nodes requires the AW node name to be used in the addresses listed in the IO_TAGNAME fields of Aspen Cim-IO transfer records. When TSK_DETECT switches scanning from one node to a redundant node, the node name embedded in the IO_TAGNAME fields must change. This arti... | Solution: ThisSolution assumes you have already defined a redundant Cim-IO logical device for the Foxboro I/A OPC Server
Download the query ChngAWNodes.txt attached to thisSolution and open it in the Aspen SQlPlus query writer. Set the macro variable logicaldevname to the Cim-IO logical device name for the Foxboro I/A... |
Problem Statement: How do I switch from one SQL database to another SQL database using Aspen Mtell System Manager? | Solution: Launch Aspen Mtell System manager.
Select Configuration tab
Select Database Connection from the Menu
In Data Source select the Name of your Source and in Database Name enter the name of the new Database you wish to switch to.
Click the Test Connection icon denoted by a blue stack and green check mark.
Verify ... |
Problem Statement: A step by step guide on how to reset Mtell View authentication if your access is denied with the error 'Unable to load trend data' (as shown in the image below). | Solution: 1. Navigate to C:\inetpub\wwwroot\AspenTech\AspenMtell\MtellView\
2. Open Web.config with Notepad
3. 'Allow users' default will be equal to * as seen in the following image
4. We need to set 'Allow users' to windows. Change the * to windows as seen in the following image
5. Save the Web.config file
6. Re... |
Problem Statement: How to set up the Process Explorer Publish remote path in Aspen Process Graphic Studio? And what is the firewall port requirement for Aspen Process Graphic Studio to remotely publish the graphic project to aspenOne Process Explorer? | Solution: After the graphic project was saved, click the Tools | Options | ProcessExplorer Publish tab | Enter http://[server username] into the Remote Path | Click OK
Click the File | Publish Project | To aspenOne Process Explorer. The graphic project will be remotely publish to the aspenOne Process Explorer server,... |
Problem Statement: What is the XTRGCST term in my objective function? | Solution: In PPIMS models using PIMS-AO there is a setting called “Calculate Holding Costs based on the Closing Inventory” located in XNLP settings on the Advanced tab. When this setting is active, holding costs for the target amount of inventory are included in the objective function. This setting is off by default ... |
Problem Statement: What firewall exceptions are required for PIMS-AO and why? | Solution: In Aspen PIMS-AO, there are some firewall exceptions that are required for the case parallel processing and multi-start parallel processing to function properly. Without these exceptions, the firewall will not allow the network communication with MPI and parallel processing will not be available.
The specifi... |
Problem Statement: Why is it that when I try to open an Excel file from the PIMS model tree nothing happens? | Solution: Normally if you double-click an Excel file attached to the PIMS model tree, the file will open in Excel and can be reviewed and/or edited. However sometimes there is no response when double-clicking the file on the tree. This can happen if there are orphaned Excel processes active. To see if this is the ca... |
Problem Statement: How to configure Aspen Mtell System Health Monitoring? | Solution: Using Aspen Mtell you can get early, accurate warnings of equipment failures to avoid unplanned downtime, and prescriptive guidance to mitigate or solve problems. Therefore it's very important to monitor Aspen Mtell System Health.
To monitor any errors or warning in Aspen Mtell System Health, you can configu... |
Problem Statement: How to create Rule Policy Agent to monitor Aspen Mtell Server Health? | Solution: Using Aspen Mtell you can also monitor your Aspen Mtell server to alerts when there is minimum Memory, CPU and Hard Drive Disk space available on the server. This article will explain how to create a Rule Policy Agent to monitor your Aspen Mtell Server.
Creating Simulated Historian
1. Launch Aspen Mtell Sy... |
Problem Statement: Which property set will give me the ideal gas ratio of specific heats Cp/Cv?
This would be Ideal Gas Cp/Cv in Aspen Hysys
I can find the Ideal Gas Cp (CPIGMX-M), and the normal Cp/Cv (CPCVMX) but not and ideal Gas Cv (so I can calculate the ratio myself) nor the Ideal Gas Cp/Cv ratio that is already... | Solution: In Aspen Plus V11, there are new property set properties to provide some variations to the the heat capacity ratio CP/CV for pure components and mixtures, respectively.
CPCV - The heat capacity ratio CP/CV) for a pure component.
CPCVMX - The heat capacity ratio (CP/CV) for a mixture.
CPCP-R -- The heat capaci... |
Problem Statement: Aspen Excel Add-in on a client machine is receiving the following error message: Time out occurred before data was retrieved.
This knowledge base article shows how to resolve this error. | Solution: User may encounter the Time out occurred before data was retrieved error message when using Aspen Process Data Excel Add-in with many tags over a long period of time. To avoid the timeout problem, user can remove the Aspen Process Data service from the data source in ADSA.
The Aspen Process Data service is o... |
Problem Statement: How to debug Aspen Properties user model in HYSYS? | Solution: Copy and paste all the Fortran files from your project to a new folder (for debugging).
Launch the Customize Aspen Plus V# command line utility from the Start menu.
Change command line directory to the new folder (cd <directory path>).
Compile all user routines as debug option using aspcomp *.f dbg.
Debug a... |
Problem Statement: Users configuring Cim-IO for OPC may receive the following message while testing communication via the Cim-IO Test Utility (cimio_t_api.exe):
CIMIO_USR_GET_CONNECT, Error connecting to device
CIMIO_MSG_CONN_SOCK_CREATE, Error creating an outbound socket
CIMIO_SOCK_OUT_CONN_FAIL, Error connecting to... | Solution: Ensure the following things are correct:
- Verify that the contents of the %cimiodef%\cimio_logical_devices.def file are the same on the Cim-IO server machine and the Cim-IO client (Aspen InfoPlus.21) machine in terms of the logical device in question (the files may contain entries for multiple logical de... |
Problem Statement: For the CIM-IO Store&Forward process, the default location for the CIM-IO store file is C:\Program Files (x86)\AspenTech\CIM-IO\io folder. How to customize the CIM-IO store file location? | Solution: Here is the procedure to customize the CIM-IO store file location:
1. Stop the OPC interface on CIM-IO Interface Manager
2. Modify the Store file path from Default to the customize folder, then save the configuration
3. Start the OPC interface, and the CIM-IO store will be generated on the customize folder... |
Problem Statement: When using a Shared On Demand Calculation - what can be done if the message 'Error Number -4004' shows up in place of the value (in the legend of A1PE, for example)?: | Solution: Stop and restart TSK_APEX_SERVER via the Aspen InfoPlus.21 Manager on the IP.21 server (detailed procedure below):
1. On the IP.21 Server find TSK_APEX_SERVER in the list of Running Tasks in the lower left part of the IP.21 Manager and click on it:
2. Click the 'STOP TASK' button which is in the lower lef... |
Problem Statement: How to export Economic Analysis variables in Aspen Simulation Workbook? | Solution: Ensure Economic Analysis is completed (after mapping and sizing) and the results are saved without any errors / warning messages.
Open Economic Analysis results and select Send to Excel / ASW option
Select the tables to be exported, choose a table formatting template, select “Export Variable link informatio... |
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