question stringlengths 19 6.88k | answer stringlengths 38 33.3k |
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Problem Statement: How does Aspen DMC3 or DMC plus applications calculate the dynamic weights for a CV? | Solution: For the default dynamic optimization algorithm (DYNOPT = 0 - not use time varying ECEs), DMCplus calculates the dynamic weight for a CV as an average over the CV trajectory. The controller makes an assumption (simplified) assumption of the CV response/prediction and calculates the average ECE/dynamic weight b... |
Problem Statement: Can I get brief description of the Options tab features in integrator settings in Aspen HYSYS Dynamics? | Solution: The following features are available under Options tab in integrator settings (Simulation/Integrator/Options)
Enable static head contributions should be selected if user wants Aspen HYSYS to calculate the static head for unit operations with holdup, considering the equipment holdup, the geometry, and elevatio... |
Problem Statement: What to do if network license is not getting hosted as server? | Solution: After proper license file installation, while hosting the license as server in configure window, if any warning / error message like “Server not running or disconnected, please verify the license server is running on the specified machine. Do you still wish to add the server?” is seen, ensure IP address or se... |
Problem Statement: If a GDOT application loses connection to the license server, the below error message will be issued in GDOT Console:
“License lost; application will terminate in X days, X hours” | Solution: GDOT applications V11.0 or later, Optimiser or Data Reconciliation, will continue running through the grace period of 10 days. The Optimiser, Model Update, and Data Reconciliation processes will check every execution cycle.
During the grace period, if the connection to the license server is restored, then GD... |
Problem Statement: What is the purpose of the Dynamics Tuning Manager? | Solution: Pressure-Flow solver failures in dynamics are most caused due to very low or zero flows. To avoid solver failures and improve robustness, the Dynamics Tuning Manager provides options for modifying your dynamic model, helping ensure uninterrupted integrator performance.
Users can:
Select a section of the PFD a... |
Problem Statement: What is the difference between log mean temperature difference (LMTD) and Uncorrected LMTD? | Solution: Uncorrected LMTD is applicable only for the Simple Weighted or Simple End Point exchanger models. It is calculated in terms of the temperature approaches (terminal temperature differences) in the exchanger, using the Equation shown below:
where: ∆T1 = Thot, out - Tcold, in and ∆T2 = Thot, in - Tcold, out
No... |
Problem Statement: How to use a tube bundle heat exchanger in a 2-phase separator or 3-phase separator?
It is assumed that the reader is familiar with the basic configuration steps require to build a dynamic simulation using Aspen HYSYS. | Solution: User can install tube bundle inside a separator to heat or cool the content of vessel fluid. This option is only applicable for dynamic simulation. This can be added via the Heat Exchanger page in the Dynamics tab. See a screenshot below.
When the tube bundle Radio button is selected then this will automatica... |
Problem Statement: When simulating a shell & tube exchanger in EDR, why is the shell side velocity reported as zero when there is fluid flow? | Solution: The shell side velocity reported is the crossflow velocity. When there are no true crossflow regions between baffles, this velocity will be reported as zero.
In such cases, typically Input warning 1077 will be flagged that indicates that there are no true crossflow regions between baffles. If user increases t... |
Problem Statement: How do you include valve stickiness in Aspen HYSYS dynamic simulation? | Solution: In reality, the valve does not respond instantaneously to changes in the actuator. A first order lag can be modeled in the response of the actual valve position to changes in the actuator position. The behavior of the valve percent opening as a function of the actuator position is shown as follows:
The val... |
Problem Statement: What is the difference between the Pressure Flow Relation and Use Modified Pressure-Flow Eq the valve Dynamic Specifications? | Solution: Pressure Flow Relation option is the default dynamic spec and in dynamics, the suggested mode of operation for the Valve is the Pressure Flow specification.
The Use Modified Pressure-Flow Eq. option is selected, to enhance the robustness of the simulation, in case the process conditions around the valve chan... |
Problem Statement: In the API sheet, for instance as shown below, the sum of the calculated pressure drops of the process stream for each zone (6.86 psi) does not match with the pressure difference between the inlet and outlet stream of the Fired Heater (7.26 psi). Why? | Solution: The reason there is a difference is because the pressure drops shown in the API sheet does not include additional tube-tube pressure loss below.
Keywords: Fired Heater, Pressure Drop, API Sheet
References: None |
Problem Statement: What is the basis for default stack temperature drop (72°F)? Can EDR calculate this temperature drop based on the information already inputted (i.e.: Stack dimensions, ambient temperature) in lieu of a specific temperature drop? | Solution: The defaulted value provides the user a starting point (a generic estimate). The user can specify the value that matches the vendor’s datasheet or plant data on the Input|Program Options|Thermal Analysis|Flue Gas tab
EDR will not come up with an accurate heat loss calculation just based on the information al... |
Problem Statement: Can I perform Line Sizing Calculations for Non-Sizing Cases? | Solution: Yes, starting from V12, the Current Scenario drop-down list on the Line Sizing tab allows users to select the desired scenario, and then click Run Line Sizing to perform line sizing calculations.
Previously, line sizing calculations were only performed for the scenario designated as the Sizing Case on the Sc... |
Problem Statement: A tube in a heat exchanger can be considered as a spring and mass system with damping, which is subject to an oscillatory force by the presence of the shellside flow. The amplitude of vibration will reach a maximum when the forcing frequency is close to the natural frequency of vibration of the syste... | Solution: If the Full HTFS Analysis vibration analysis method has been selected from Input | Program Options | Methods/Correlations | General tab, then when a case in run, the Vibration performance is shown in Results | Thermal / Hydraulic Summary | Vibration & Resonance Analysis | Resonance Analysis (HTFS) tabs.
In th... |
Problem Statement: What is the login credential for opening Aspen Operator Training user interface? | Solution: AOT requires a common log-in credential for all users to access the interface.
These credentials can be used:
Username: ISAdmin
Password: AspenTechAOT
When you launch Aspen Operator Training, the login dialog box appears.
To login to Aspen Operator Training:
In the Username field, specify the username for y... |
Problem Statement: How to save adsorber bed configuration in Aspen Adsorption V12? | Solution: Users can save the adsorber bed/column data to an external file using the Save button on the bed configuration form.
This file contains the layer configuration and all specified (fixed) variables.
Users can use it in other simulations (or for rearranging layers) by using the open button
Keywords: Configure, A... |
Problem Statement: How to transpose the Workbook table from column to rows in Aspen HYSYS V12? | Solution: In the Aspen HYSYS Simulation environment,
Click on the Workbook folder in the navigation pane or on the Home menu
On the left-hand side bottom corner, the user can clear the Horizontal Matrix check box.
If you do so, the Workbook results are transposed as a vertical matrix, with the stream/operation name... |
Problem Statement: Is Aspen Cim-IO backward compatible? | Solution: Yes Cim-IO versions are backwards compatible. However new versions of Cim-IO are not tested with unsupported versions of Cim-IO. If an issue occurs with an unsupported version of Cim-IO that can not be addressed by installing an available patch, the reSolution will be to upgrade to a supported version.
F... |
Problem Statement: How to overcome dongle detection problems? | Solution: Even after proper installation of dongle driver with the installation media provided for Aspen SLM, there are situations where dongle detection fails. Please verify by opening device manager and check SafeNet USB SuperPro/UltraPro is listed under Universal Serial Bus controllers.
If it is not listed, then do... |
Problem Statement: How to speed up SLM client connectivity with SLM Sever? | Solution: The default socket buffer size on a busy SLM Server handling thousands of simultaneous license requests may result in more requests than the server can handle concurrently. Increasing the socket buffer size provides an opportunity for the OS to buffer up the data/requests while the service is busy processing ... |
Problem Statement: How to read the different bars and lines in a Probability to Exceed graph in Aspen Fidelis | Solution: The Probability to Exceed chart is a line graph that shows you the probability of meeting or exceeding the percentage on the X-axis. The line graph is plotted over a histogram that shows your actual data. An example is shown below:
In this example, we can see the following
The histogram shows that the lowest ... |
Problem Statement: There is no Finishing Convergence trend in Aspen Fidelis Simulation Monitor, as shown below | Solution: Absence of the Convergence trend in Aspen Fidelis Simulation Monitor after running the model generally occurs when there are less than three lifecycles run. Aspen Fidelis requires three or above lifecycles to generate a convergence by calculation. To rectify this issue, it is recommended to change the simulat... |
Problem Statement: The trend lines in Aspen Mtell Alert emails are not visible, as in the screenshot below | Solution: Email alerts sent out by Aspen Mtell will not display trend lines if the Webserver settings in Aspen Mtell System Manager are not pointing to the correct server. To rectify the issue, follow the steps below:
1) Open Aspen Mtell System Manager and navigate to the Configuration [1] tab
2) Under Settings [2] se... |
Problem Statement: How do I get list of all deployed live Aspen Mtell agents? | Solution: User may require to get list of all deployed live agents. This can be done from Aspen Mtell System Manager by following the below steps:
1. Open Aspen Mtell System Manager and select Equipment [1] tab
2. Click on the Export Agents [2] tab under the equipment section
3. Select the Type of agent [3] you want t... |
Problem Statement: What do the different colors in an Aspen Mtell Maestro Probability Trend stand for? (highlighted in the red box in below image) | Solution: Aspen Mtell Maestro uses a range of colors in the probability trend to symbolize how each period contributes to the decision of the agent trained by Maestro. They are :-
1. Green = Normal data used to build the Agent
2. Red = Pre-failure data used to build the Agent
3. Blue = Normal data used to test the Agen... |
Problem Statement: Queries in Aspen Batch Query Tool using absolute time are timing out if they take more than 40 seconds to complete. Is there anything that can be done to optimize the AspenBatch database?
Another related problem can be that queries from other AMS products like eBRS work correctly, but much slower tha... | Solution: Yes, there is. Please refer to the Word Document attached to thisSolution for the detailed step-by-step instructions including several screen captures.
Also, the following KB article describes the procedure very well:
https://www.mssqltips.com/sqlservertip/6099/getting-started-with-sql-server-maintenance-pl... |
Problem Statement: How do I change/edit the email notification settings after an Aspen Mtell agent has been deployed live? | Solution: After an Aspen Mtell agent has been deployed live its notification settings can be changed through Aspen Mtell System Manager Application.
Below are the steps:
Open Aspen Mtell System Manager
Click on the Equipment [1] tab
Select the Asset in consideration (in this example, Compressor 1) [2]
Click on Agents... |
Problem Statement: The ability to configure multiple Historian adapters gives flexibility to connect to various data sources via the same Aspen Mtell server. This feature is useful when there are more than one Historian server of the same type, for example, four separate IP21 servers. | Solution: To create multiple Historian Adapters of the same type, follow the steps below:
1) Navigate to C:\inetpub\wwwroot\AspenTech\AspenMtell\Adapter\Adapter folder (in this example, Pi) [1].
Note: If Aspen Mtell was installed on a different directory, not the C:\ drive, this folder will be in that directory.
2) Ma... |
Problem Statement: Aspen Mtell logs can take upto 40% of Database size. In order to reduce/compress the size of the database for better space management, shrinking Database logs can be carried out following the steps in this KB article | Solution: In order to shrink logs, open SQL Server Management Studio (SSMS) and connect to the SQL server hosting Aspen Mtell Database
1) Locate the Aspen Mtell Database in SQL server and right click on it (MtellSuite in this example) [1]
2) Select Tasks [2] and navigate to Shrink [3], finally selecting Files [4]
3) N... |
Problem Statement: Mtell System Manager is unable to Find Agent and Training services even though these services are up and running in the services application | Solution: This issue can occur due to IPV4 settings on the server, which could be blocking the opening of ports used by Aspen Mtell Agent/Training service.
It is recommended to seek help from your IT/Admin team to check the IPV4 Multicast setting and set it to Enabled on the Server where Aspen Mtell and its services ar... |
Problem Statement: Is it possible to model the conversion of ortho-hydrogen to para-hydrogen? | Solution: Yes, the Aspen Properties databanks contain components for both ortho-hydrogen and para-hydrogen.
Component Name Alias
HYDROGEN-PARA H2-PARA
HYDROGEN,-DIATOMIC,-ORTHO H2-N3
The REFPROP property method can be used to calculate the properties and to predict the conversion in an equilibrium reactor such as RGI... |
Problem Statement: How is the pressure drop across a relief valve calculated in Aspen Flare System Analyzer? Why do I see large pressure drop across the relief valve? | Solution: In actuality, Aspen Flare System Analyzer doesn't calculate the pressure drop across a pressure relief valve. The relieving pressure is the upstream pressure for the relief valve, and the downstream pressure is the back pressure calculated from the downstream pipe.
In the above figure, the pressure 27.3986... |
Problem Statement: How can I write an Aspen SQLplus query that returns only the historical entries that have a changed value compared to the previously returned value?
This knowledge base article provides a sample query which returns only changed historical values. | Solution: 1
The first example returns all data (including the repeated values) as shown below:
SELECT IP_TREND_TIME, IP_TREND_VALUE
FROM MyTag
WHERE IP_TREND_TIME BETWEEN 'TimeA' AND 'TimeB' AND
IP_TREND_QLEVEL = 'Good';
The returned data values are: 0, 1, 1, 1, 2, 3, 3, 0. Then one can loop through these results t... |
Problem Statement: A user wanted to develop a .NET application and needed to read from an Aspen SQLplus temporary table that is populated with InfoPlus.21 data. | Solution: Here is an exampleSolution
Note, if the last line in the SQLplus procedure is a SELECT statement, then the result set gets returned to the calling routine:
PROCEDURE TEST
DECLARE LOCAL TEMPORARY TABLE MODULE.X
(NAME CHAR(10), VALUE REAL);
-- insert two rows of static test data into the declared temporary... |
Problem Statement: Example: CO2 Emissions Modeling for Olefins Planning Using Aspen Unified PIMS | Solution: The Chemical and Petrochemical sector is one of the largest greenhouse gas (GHG) emitting industrial sector among stationary sources such as Power Plants, Petroleum and Natural Gas Systems. The chemical and petrochemical industry accounts for 30% of global industrial energy use and 16% of direct CO2 emissions... |
Problem Statement: After estimating parameters, entering No to replace the existing value for each parameter individually gives different results from No to all. | Solution: After completing an estimation run in which you estimated any parameters for which values were previously available, you may be asked whether you want to replace the existing value with the newly estimated one on input forms. If you click Yes or No in response to this prompt, the answer will only apply to tha... |
Problem Statement: How do I configure my Windows Firewall to allow client communication to the License Server? | Solution: A network firewall program is designed to limit security risks on the Windows operating system. It blocks almost all network TCP and UDP communication ports including the ports that AspenTech's SLM Security uses.
If it is not possible to turn off the firewall protection, it will be necessary to open TCP and U... |
Problem Statement: Users may encounter messages like the following in the CIMIO_MSG.LOG:
CIMIO_OPC_NOVALIDITEMS, No Valid Items in the list, all the tags in the list are invalid
CIMIO_OPC_SUCCESS, Operation Succeeded | Solution: These messages may be suppressed by following method, starting Version 10 (applicable for V9.0):
a. Open Aspen CIMIO Interface manager (This GUI will be available on system hosting CIMIO server)
b. Highlight the OPC Interface node under Cim-IO Interfaces and check Ignore No valid items in list error
c. Cli... |
Problem Statement: When trying to import an Equipment Set from a CSV file in Aspen Mtell Agent Builder, you receive the following error:
(Default Exception Handler) Application Exception:
Input array is longer than the number of columns in this table.
This error will trigger on the “Validating each row…” step. | Solution: This exception occurs when one or more of the rows in the CSV file has more entries/columns than the header row. This happens when that row contains a cell with a comma. To find the cells with commas follow the steps below.
Open the CSV file in Excel
Open Find and Replace, you can either use the CTRL+F sho... |
Problem Statement: In this | Solution: , we explain a brief example of how third-party application connection can be done using IP21 as the communication Gateway
Solution
In this example, we will review the connection of Matrikon as our 3rd party application to DMC3 using IP21 as “man in the middle”. This example can be extrapolated to application... |
Problem Statement: Changing parameters like enthalpy of formation (DHFORM) does not result in changes on the calculated heat of reaction. | Solution: If the Barin equation parameters (CPxXP#) stored in the Inorganic databank are used then Enthalpy (H), Gibbs Free Energy (G), and entropy (S) are simple functions of these parameters based on thermodynamics as calculated from the Barin parameters. Any changes in parameters such as DHFORM will not have an effe... |
Problem Statement: After changing the passwords for the InfoPlus.21 and Cim-IO Services, the tags only show a straigh line when being plotted | Solution: If it is required to change the the password associated with the accounts running Aspen InfoPlus.21 Task Service or Aspen Cim-IO Manager, you first need to stop the service, then change the password and finally restart it. Not doing the previously explained will result is a lost of communication between the I... |
Problem Statement: This article describes some steps and concepts to consider for the different users that will work on the same server. | Solution: GDOT Unified authentication requires Windows user credentials, but different Roles can be managed from Aspen GDOT Unified depending on the level of access that we would like to provide to every user.
From the Roles page, we can have three different sections that can be delimited: Roles, Models, and Price Cat... |
Problem Statement: What is the format of the input file used to read and write data using the Aspen CimIO_T_API client? | Solution: Tag File Format for GET Request
For a GET request, the tag name, Cim-IO data type and device data type are entered on separate lines for each value to be accessed. The device data type may be omitted if it is the same as the Cim-IO data type. Therefore, each row
in the file contains either:
TAGNAMCIM-I/O DAT... |
Problem Statement: What TCP ports are required to be open between a V11 Aspen Cim-IO Interface Server and an Aspen Cim-IO Client like Aspen InfoPlus.21? | Solution: The improved Aspen Cim-IO Store and Forward architecture requires the following bidirectional ports to be open between the Aspen Cim-IO Client and Aspen Cim-IO Interface Server.
V11 Aspen InfoPlus.21 connecting to a V11 Aspen Cim-IO Interface Server.
Aspen Cim-IO Manager 7777
DLGP ... |
Problem Statement: On the AspenCalc, each Schedule Group has its own priority. The priority can be accessed by right-clicking the targeted schedule group and select Properties. What is the meaning of the Priority? | Solution: Priority is the priority at which the Group is to run. Higher priority Groups are processed before lower priority Groups scheduled at the same time. The priority for each schedule group can be modified.
Keywords: Priority
AspenCalc
Schedule Group
References: None |
Problem Statement: How to create an ad-hoc Statistical Process Control plot on Aspen Process Explorer? | Solution: Here is the procedure.
1. Open a new Statistical Process Control plot (such as XBar, Range, etc...) on Aspen Process Explorer.
2. Insert an IP.21 tag to the tag legend area.
3. Right-click the plot, click SPC Parameters to define the subgroup size.
4. Right-click the plot, click Control Limits to define ... |
Problem Statement: How to add a column for displaying the aggregate calculation on Aspen Process Explorer? | Solution: Here is the procedure.
1. Right-click the tag legend area, and click Legend Setting.
2. On the Column tab, click New.
3. Select the Aggregate Column tab, define Column Name, Column Type, and Calculation Period.
4. Click OK, and the new aggregate column will be added to the column list.
Keywords: Aggregat... |
Problem Statement: How to display the aggregate value on the trend plot on Aspen Process Explorer? | Solution: Here is the procedure.
1. Insert an IP.21 tag to a basic trend plot on Aspen Process Explorer.
2. Right-click the tag on the tag legend area, then click Properties.
3. On the Sampling, select the desired aggregate calculation instead of Actual.
4. Define the aggregate calculation period. Click Settings to... |
Problem Statement: How to add a column for displaying the aggregate calculation on aspenONE Process Explorer (A1PE)? | Solution: Here is the procedure.
1. On the tag legend area, click Add/Remove Column.
2. Enter the name for the column you want to add, and select Aggregate instead of Attribute.
3. Define the aggregate function and calculation period.
4. Click Add, and the new column will be added to the column list.
Keywords: Aggr... |
Problem Statement: How to display the aggregate value on the trend plot on aspenONE Process Explorer (A1PE)? | Solution: Here is the procedure.
1. Insert an IP.21 tag to a basic trend plot on A1PE.
2. Check the checkbox of the tag on the tag legend area, then click the Edit button.
3. On the Trend Type, select Aggregate instead of Actuals.
4. Define the aggregate function and the calculation period.
5. Click “Save”, and th... |
Problem Statement: When opening the SQL server management studio to shrink the database and log, the error “Alter failed for Database XXX” popped up. How to troubleshoot? | Solution: The issue was caused by the items not back up before shrink.
Here are the steps:
Launch SQL server management studio.
Right-click the database, select Tasks, select Back up.
Back up the database or log you want to shrink.
Right-click the database, select Tasks, select Shrink, select database or files.
Select... |
Problem Statement: How to turn on the DCOM log for Aspen Calc troubleshooting? | Solution: Here is the procedure:
On the IP.21 server, go to folder “C:\Program Files (x86)\AspenTech\ProcessData”
Launch the ProcessDataAdministrator.exe as administrator.
On the Tab “DCOM”, select the Aspen Calc as CLSID and Interface, and enter the IP.21 server name as Host.
Click “Turn On”.
Run the connection from c... |
Problem Statement: This knowledge base article describes how to display a given value in an Aspen Process Explorer plot based on the value of a timestamp in a database record. | Solution: An ad-hoc calculation in Aspen Process Explorer can be used to display a given value based on the value of a timestamp in a database record. The following is an example of what you would type in the tag name field in an Aspen Process Explorer plot to see a value displayed based on a timestamp. The record name... |
Problem Statement: How to publish multiple Aspen Process Explorer plots to aspenONE Process Explorer at once? | Solution: Here is the procedure
1. Open Aspen Process Explorer, Click Tools tab, Click Plot Utility.
2. Change the Source from File to Folder, and select the target folder.
3. Click Export XML, and ALL of the APEx trends in the target folder will be published to the A1PE.
Keywords: Aspen Process Explorer plots
aspenON... |
Problem Statement: On the V11.0, the BCU Administrator shows error B21BCU-55002: Unable to connect to the BCU server, it may not be running, or you may not have permission to access it: data source name, when trying to connect to the local data source. The Windows Event Viewer shows error Event 10010, DistributedCOM: T... | Solution: Please uninstall and reinstall the BcuServer.exe by running the below command on the command prompt as an administrator:
\Program Files\AspenTech\Batch.21\Server\BcuServer.exe /unregserver
\Program Files\AspenTech\Batch.21\Server\BcuServer.exe /install
After the run the command, the BCU Administrator error w... |
Problem Statement: The time it takes to make a connection between the client and the server may take longer the more the data sources are configured in the Aspen Data Sources Architecture (ADSA), especially if some of the data sources are redundant. TRACERT (Trace Route) is a command-line utility that you can use to tr... | Solution: On the client machine, go to the DOS prompt.
Type the following:
C:\> tracert <IP21 server name> <return>
Tracing route to <IP21 server name> [10.48.28.187]
over a maximum of 30 hops:
1 10 ms <10 ms <10 ms <IP21 server name> [10.48.28.187]
Trace complete.
You will get back the information that tells you how... |
Problem Statement: Is it possible to enter internal and external symmetry numbers for corrections for the Benson estimation method? | Solution: It is possible to enter SYMMETRY and OPTICAL-ISOMER for the Benson method for a component. These corrections are only used for Gibbs Free Energy of Formation (DGFORM) estimation. SYMMETRY and OPTICAL-ISOMER cannot be determined automatically from structure.
Attached is an example for dichloroethene where fo... |
Problem Statement: Error 500 can be returned when using the Batch APC on A1PE. This error appears due that A1PE can’t connect with the IP21 Server. This article describes a couple of | Solution: to fix this problem.
Solution
1.- Verify that TomCat service is running and using an Administrator Account.
2.- ISAPI filters are enabled and with the correct version on IIS. The following KB will describe a further step on how to verify this:
https://esupport.aspentech.com/S_Article?id=000093842
3.- make ... |
Problem Statement: Run Time Error 521 “Can’t open Clipboard” can happen when running Model uncertainty Plots on DMCplus Model or trying to run Analysis on Smart Audit. This | Solution: provides a potential workaround by cleaning up the clipboard.
Solution
The proposed workaround is to create a shortcut on the desktop, running the following command:
1. On the PC experiencing the issue, right-click anywhere on the desktop and choose: New ---> Shortcut.
2. Enter the following command into ... |
Problem Statement: How do you move a solid component from one substream to another? I would like to move a solid component from the MIXED substream to the CISOLID substream and add a particle size distribution (PSD) in order to use some of the rigorous solid unit operations. | Solution: Components can be moved from one substream to another using the RSTOIC block.
A particle size distribution (PSD) can be added if the substream allows.
The stream results before and after moving the solid to the CIPSD substream:
Keywords: None
References: None |
Problem Statement: How can I move the contents of one Cim-IO Transfer record (like IoGetDef, IoLongTagGetDef, IoLLTagGetDef) to another? | Solution: 1. Using the Aspen InfoPlus.21 Administrator, create a new transfer record defined against IoGetDef, IoLongTagGetDef, or IoLLTagGetDef
2. Fill in the fixed area fields of the new transfer record. Leave the field IO_RECORD_PROCESSING OFF.
3. Execute the following query to copy the contents of the... |
Problem Statement: This knowledgebase | Solution: documents the connection string that is required to be used with MES products in combination with Java 8+.
For more information on Java 8 JDBC-ODBC bridge jars please following article:
Is there a JDBC Driver available for Aspen InfoPlus.21?Solution
The following connection string will work for Java 8 JDBC-OD... |
Problem Statement: A new Conversations application that allows participants to subscribe to and participate in news-feed type conversations has been added to aspenONE Process Explorer V11.
You may see the following error message when access Conversations by clicking the Conversations icon on the aspenONE Home page. | Solution: 1. Go to aspenONE Process Explorer server (Directory server)
2. Launch ADSA
3. Click on Configuration tab
4. Click on Public Data Sources
5. Highlight the data source and click on Edit...
6. Double click on aspenONE Process Explorer Comments component.
7. Check Default Data Source
8. Close the browse... |
Problem Statement: You may create on the fly calculations in Graphics. When the quality is becoming Bad, the overall calculation is affecting.
For example: We have a calculation = TagA + TagB + TagC. As you can see, TagA has been calculated even if it is Bad. | Solution: You may use If statement to preventing the Bad tag to be calculated.
=(IF{TagA IP_INPUT_QUALITY} =-6 THEN 0 ELSE TagA) +(IF{TagB IP_INPUT_QUALITY} =-6 THEN 0 ELSE TagB) + (IF{TagC IP_INPUT_QUALITY} =-6 THEN 0 ELSE TagC)
Note: The dropdown list of IP_INPUT_QUALITY is maintained by record QUALITY-STATUSES
K... |
Problem Statement: When modelling a Pipe Segment, if the pressure drop in the pipe segment is too big, a warning may appear, saying that increment dP > 10% of inlet. Check Trace. But when does it appear and what does it mean? | Solution: Remember that the pipe segment compute calculations dividing the pipe into increments in order to estimate better the properties at each increment, and the final result is a contribution of the results from all the increments. In each increment a pressure drop is being calculated and this warning appears when... |
Problem Statement: What does the warning Segment Pressure Drop Greater Than 10% Of Inlet Segment Pressure mean? | Solution: The warning message Segment Pressure Drop Greater Than 10% Of Inlet Segment Pressure For XXX under View | Results | Messages | Solver (where XXX is the name of a pipe in the model) means that in at least one element in pipe XXX the pressure drop over that element is more than 10% of the element inlet pressure... |
Problem Statement: Symptoms were observed with PCSPUT error messages on the PCWS Web Viewer or APC Manage for the Aspen Inferential Qualities (IQ) applications that were writing to FoxIA AIN block. This issue was being experienced after upgrading the DCS (Foxboro EVO) supervisory control server (Foxbridge) from version... | Solution: The root cause of this issue was a defect on the AIM*OPC side. ReSolution was to upgrade the AIM*OPC version from 3.5 to 3.6.1. After the AIM*OPC upgrade, no PCSPUT error messages where reported for the IQ, even after a reboot and workaround was no longer required.
Keywords: IQ, PSCPUT, Foxboro, Foxbridge, OP... |
Problem Statement: Where can I see the ports used by the OPC UA Configuration tool for v10 | Solution: InfoPlus.21 Server automatically configure the firewall ports during installation. If you want to see which ports are being used by the applications for the OPC UA connection, please follow these steps.
1. Open UA Configuration tool.
2. Click on Manage Application Tab
3. You need to have IP21OpcUAServerHost.... |
Problem Statement: When trying to execute the MSRSR.rpt and the MEVST.rpt the following error appears:
SQL Return: SQL_ERROR
Error Code: S0002
Error Message: [Oracle][ODBC][Ora]ORA-00942: table or view does not exist | Solution: The MSRSR.rpt and the MEVSR.rpt both require the Sales and Receipt Module Database Tables, therefore is required to add these tables to the model.
The procedure to add the modules is mentioned below:
Note: These modules can added only if the end user subscribed for the optional add-on modules. The ... |
Problem Statement: ANL files .ANL files can be produced by Aspen Nonlinear Controller (formerly Aspen Apollo), Aspen Process Statistical Analyzer (formerly Aspen IQmodel Powertools), and Aspen Nonlinear Controller.
When importing ANL files in Nonlinear projects. You might see the gains are not correctly populated amon... | Solution: explains a procedure to correctly import ANL in Nonlinear projects.
Wordaround
Open the ANL file with Notepad and identify the order of inputs. The structure of the recipient model has to match this order.
Here you have two options:
If you have the original dataset with the vectors used to build the ANL in... |
Problem Statement: How does OptiPlant calculate spacing between the pipes? | Solution: OptiPlant calculates the Pipe spacing using the Formula: Flange Diameter of Large Pipe/2 + the smaller pipe dia/2+ Flange insulation of bigger pipe + Pipe insulation of smaller pipe + Face to Face.
Flange Diameter of larger pipe Flange Diameter is read from the file Flange.ans file located at C:\Program Files... |
Problem Statement: Why OptiPlant is giving FEI License check error? | Solution: This Error message would appear if the user clicks on any button in OptiPlant without launching a project. It is required to create a new project folder and launch OptiPlant using that. Once the project folder is launched in OptiPlant, this error message will go away.
Keywords: FEI License Check Error
OptiPla... |
Problem Statement: The cost of X -ray is more than three times when the shell cylinder length is changed to 3079 mm or above | Solution: The reason for the increase in X-Ray price is that, starting at 3079 mm, the shell will have a girth weld.
This adds a significant extra X-ray cost.
Keywords: None
References: None |
Problem Statement: Why incorrect server name/IP is indicated on the SLM Configuration Wizard even after adding the correct server IP address? | Solution: If the computer is belonging to the Domain network environment, SLM software uses server name/IP address information which is stored in Domain controller.
But if domain controller side information is wrong, this problem can be caused.
In that case, please follow the procedure below to resolve the issue..
Not... |
Problem Statement: The following message may appear when opening a newly installed Aspen Process Explorer for the first time (after getting past the registration screens):
Unable to acquire Process_Explorer license.
There's a 'Details' and a 'Close' choice. Details returns this:
(Name of license server) (Bucket ... | Solution: Open the WLM Admin tool on the license server machine. If this key is present:
SLM_RN_PME_PRCEXPL_TK
then it means that the license has the key that Process Explorer needs so we need to change the install on the non-working system to be a token-installation. The options are to install with token media, ... |
Problem Statement: When opening UA Configuration tool and choosing Import Certificate to Trust on Manage Security tab, the following error appears
this means that a Config.file has not been added to the Opc.Ua.Discovery.Server | Solution: 1. First make sure the services Aspen CIM-IO Manager and OPC UA Discovery Server are running on the same administrator accounts.
2. On OPC UA Configuration tool | Manage Security, you need to have Opc.Ua.DiscoveryServer on Application To Manage, click Edit
a window will pop out, click Browse for Configuratio... |
Problem Statement: Is the holdup for rate-controlled reactions (specified on the RadFrac's Reactions form) the same as the holdups for rate-based distillation (specified on the RadFrac's Pack rating | Rate-based form)? | Solution: Use the RadFrac | Reactions | Holdups sheet to specify the holdup for rate-controlled reactions in equilibrium calculations. This holdup will be used to initialize rate-based calculations. Use the Rate-Based Modeling | Rate-Based Setup | Holdups sheet to specify the holdup for the Column Internals of a Sectio... |
Problem Statement: AOL Services V12/V12.1 is not able to start after the switch to the Local System account. You may see Error 1053 reported in a popup window saying Error 1053: The service did not respond in a timely fashion when attempting to start the service. | Solution: There are multiple potential reasons that Aspen Online Services is not able to start when switching to the Local System account:
SQL Express 2014 SP2 is not installed.
SQL Express 2014 service is not running.
SQL Express 2014 SP2 service is not being selected to run Aspen Online V12/V12.1 services.
For reason... |
Problem Statement: A DMC controller can shut off or exit the process with the error message: General: MV check failed: User calculation MAXMOV exceeded. What does this message mean and how can we troubleshoot it? | Solution: Every cycle, the controller checks to see if the setpoint that is about to be output to the MV is greater than the maximum move and tolerance. This is called the Last Check, LSTCHK: |VIND – VINDSP| > (MAXMOV + MOVTOL). If this check comes out true, then the controller will turn off and produce the message “Us... |
Problem Statement: How do I setup an optimization problem in Equation Oriented (EO) mode? | Solution: The attached example shows how to optimize the operation of a distillation column in order to maximize profit.
The column is separating ethanol from water. The profit is calculated as:
1 $/lbmol *lbmol of Ethanol produced - 5 $/BTU * Reboiler Duty in BTU - 2 $/BTU * Condenser Duty in BTU.
This profit equati... |
Problem Statement: Specific network port number is required to add into exception list of the network firewall in order to allow the connection between Aspen Online Client machine and Aspen Online Server Machine | Solution: For the network port requirement for the firewall, you can refer to the list below for the different versions of Aspen Online.
aspenonlineV12.1 39001/tcp #For Aspen OnLine V12.1
aspenonlineV12.0 38001/tcp #For Aspen OnLine V12.0
aspenonlineV11.0 3... |
Problem Statement: How to see a proper scale on the flowsheet and in the PDF print version?
In some cases, it is possible to find different scales in the flowsheet. This can affect the size in the process flow diagram (PFD) icons or letters, in the Model Palette icons, or in the PDF printable version. | Solution: For seeing a proper scale on the flowsheet and in the PDF print version, it is suggested the next 2 modifications:
Modify the screen reSolution to 1920 x 1080.
In File/Options/Flowsheet/Label Font select Arial as a Font and 8pt as Size, click on Ok/Ok.
After that, restart Aspen Plus and open the case.
Keyw... |
Problem Statement: Under certain circumstances, it may be necessary to schedule a particular service to restart without user intervention, e.g., as a stop-gap measure until a particular problem is resolved. This | Solution: suggests you how you can do this.
Solution
You can use either the SC.exe utility (available from the Windows resource kit) or NET START/NET STOP commands. The example below uses the NET START and NET STOP commands to restart the AspenTech Calculator Engine service:
First, create an MS DOS batch file with the ... |
Problem Statement: How to pass the pipe failing due to ‘Improper point generated (point outside all CLBs)’ error. | Solution: This indicates the line is trying to route outside the defined area of the plant. Large lines off the top of the towers, or lines going below grade usually face this problem.
Sketch the pipe.
Check that the working units stated in the line list are the SAME as the working units used in the OptiPlant plot pla... |
Problem Statement: How to pass the pipe failing due to “Route violates bend to bend distance” error message. | Solution: This indicates that the pipe cannot satisfy the bend distance criteria. It usually occurs when there is congestion near one of the end points and when the pipe is trying to exit out of or enter into the pipe rack. Check the start and end points to observe if there is congestion.
Sketch the pipe and check whet... |
Problem Statement: Input Gen error - For Line < Line Id > the Service type < type > and Battery Rack type < type > do not match. The service type will be changed to match the rack type. | Solution: Check that the rack ID for this line is of the same type as the line. For example, if the line has ‘P’ for service, it should only go to racks of process type. This is listed in the rack file (*.rks) in the second column.
Key Words:
Service type,etc
Keywords: None
References: None |
Problem Statement: Why input generation process is throwing an error message for Pipe Specs.
Line < Line Id > has spec < pipe spec > which is not in Pip_spec.dat file. | Solution: The spec for this line is not found in the pip_spec.dat file. It can be added by simply entering the information in this file. Pip_spec.dat file present in the project folder.
Key Words:
Pip_spec.dat, etc
Keywords: None
References: None |
Problem Statement: Why Input Generation report throwing an error message as ‘Cannot find/read component list file <Component list>.’ | Solution: If a component list (*.cls) is to be used, check that it is present inside the project directory and has the same prefix as the line list and equipment list. If no Component List is to be used, this message can be ignored.
Key Words:
Component List, .cls, etc
Keywords: None
References: None |
Problem Statement: Why OptiPlant is giving, and error message as shown below upon running define environment.
Interference with RACK VOLUMES detected after reading <model name>. hv and <model name>.rks.
Please resolve the interference error to route pipes.
Process Rack-Volumes <rack name> ... | Solution: This error occurs when any hard volume of the equipment or structure is clashing or interfering with any “Rack Volume” built in the model. Identify the rack-volume IDs interfering with other hard-volumes in the layout. Select that that rack volume in the OptiPlant Model and check for interference visually in ... |
Problem Statement: What are the rules in OptiPlant which get applied to Equipment and structures? | Solution: In OptiPlant, the user can define some rules to the equipment and structure to control the pipe routing. These rules can be applied using the parametric form of the objects. The 3D model is converted to Hard Volumes and Racks files for the router based on the rules, which are applied to each item in the 3D Mo... |
Problem Statement: What are the differences between Center to center and Actual Piping MTO? | Solution: Type of Calculation – MTO provides the length of the pipes per this calculation. Basically, two types of calculation are there:
i. Center to Center- It means the total length of the pipe from start to finish, including the center to center length of the fittings (elbows and flanges) and inline components as... |
Problem Statement: Are there any pre-requisites that need to be followed prior to import a DXF in OptiPlant? | Solution: There are some pre-requisites, which needs to be fulfilled by the users before importing the DXF in OptiPlant:
The 2D DXF file must have the same coordinate system as that of the OptiPlant plot-plan.
The UNITS of the 2D DXF file must be the same as that of the plot-plan units in OptiPlant.
The scale of the 2D... |
Problem Statement: How to calculate the Rack Volume height? | Solution: The height of the rack volume is calculated by using the formula, ½*(OD of the largest pipe in mm) + rack shoe height (100mm), for example, if the height of rack volumes N1 and N2 are 300 mm each and the line ID NGL-P-5003, NGL-P-5064 and NGL-P-5000 forced having line size of 750mm each. So, the minimum requi... |
Problem Statement: Upon using Excel export, either for exporting the model or the line list, OptiPlant is giving an error message which is shown below: | Solution: Sometimes the Microsoft office updates break the interfaces with some software. To resolve this issue, first, try to reboot the system. If this issue persists, then the user will need to repair Microsoft office by going into the control panel. After repairing it, this issue will go away.
Key Words:
Excel Exp... |
Problem Statement: The Databanks PURE856, PURE93, PURE10, and AQU92 are NOT available in V7.3 and higher. PURE11, PURE12, and PURE13 are NOT available after V8.4. PURE20, PURE22, and PURE24 are NOT available after V11. These are superseded by AQUEOUS and later versions of PURE which include more recent data from DIPPR ... | Solution: below to install the retired databanks and then reopen the file.Solution
It is possible to use the Aspen Properties Enterprise Database to preserve copies of these databanks if you still need to use them. See the attached document Maintaining Access to Retired Databanks for details.
You can download a versio... |
Problem Statement: Customer wants to simulate a process with electrolytes and mixed solvents. What data is required to regress interaction parameters? How should he go about the regression? Does it matter whether true or apparent approach is used? | Solution: When regressing electrolyte data you MUST use a property method with the same approach (true or apparent) as the data. I.e. if the data includes the compositions of the ions, true approach must be used, and if the data incudes only the apparent compositions as is more common, the apparent approach must be use... |
Problem Statement: Are there any recommendations to import lines from the excel template to the line list? | Solution: Following is the recommended work process to follow when importing lines from excel file into line-list for routing:
If the line list in the excel file is available, then all the lines need not be imported into OptiPlant in one go.
The lines can be imported in smaller groups
The recommended process to import ... |
Problem Statement: Are there any recommendations to set up a new project in OptiPlant? | Solution: Before creating a new project in OptiPlant, users should review the Plot Plan to determine whether a project should be divided into several smaller projects that can be developed by one or more users. It is recommended to divide OptiPlant projects into areas that have approximately 00 - 500 lines. This is not... |
Problem Statement: Previously, configuration and start-up of Cim-IO for OPC required users to manipulate several files: the Windows Services file, the cimio_logical_devices.def file, and various files in the %CIMIOROOT%\io\cio_opc_api directory.
Most of this manual configuration has been eliminated in current versions ... | Solution: Cim-IO for OPC now uses an entirely GUI-based configuration utility. The CIM-IO Interface Manager utility allows you to configure how Cim-IO for OPC behaves. This utility is used to configure the logical device name, TCP/IP service name, node name and any other additional configuration required for CIMIO for ... |
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