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Problem Statement: How and when to use Keyword #PL_DST? | Solution: Use the Keyword #PL_DST - Period Length Using Daylight Savings Time to indicate that period lengths are to be calculated using daylight savings time (DST).
Application
To define period lengths as DST values:
Enter the keyword #PL_DST in cell A7. This keyword must be in cell A7.
Keywords: None
References: the... |
Problem Statement: How does Refresh functionality works in APS? Does it notify other users of changes made directly into the database? | Solution: This KB Article explains how “Refresh” functionality works in APS and why APS will not notify other users of changes made directly into the database.
In cases where multiple users are modifying the same schedule, it is important that all users are notified when an update is made to the current schedule.
If ... |
Problem Statement: What is the best model to evaluate the viscosity of aqueous mixture such as ethanol-water, dioxane-water, etc? | Solution: No systematic investigation has been made so unfortunately you will have to do this validation yourself. We can however provide some suggestions.
The viscosity of a liquid mixture is calculated from the viscosity of the pure component and some mixing rule. Therefore one should first make sure the pure compon... |
Problem Statement: How does Property Balance work in MBO? | Solution: Property balances for finished product are always performed. In periods where the property balances are turned off, the properties are fixed based on what the simulator calculates for each property before the optimization. In other words, for each period, the optimizer uses what appears on the componentproper... |
Problem Statement: Sometimes it is desirable to allocate an array with its size same as the number of streams connected to a multi port. For example, the incoming streams have mass flow rate field, but not mole flow. You like to calculate and store the mole flow associated with the incoming streams. | Solution: For this specific problem you could extend the stream definition to include the extra variables.
The multiport object property Connectionset is a string set with the list of names of streams currently connected to the multiport. It can be used to declare arrays.
In the model, to declare an array with the sa... |
Problem Statement: Aspen SQLplus automated reports defined by SQLReportDef may display the error "ADSA SMTP server not configured" in the STATUS field. | Solution: This error means that the external task TSK_SQLR successfully created the report but could not e-mail it using SMTP.
This article has some suggestions for troubleshooting this problem.
1. Verify the SMTP server is accessible from the Aspen InfoPlus.21 server. Attached to this article is a query named Test... |
Problem Statement: How do you generate an XY diagram to compare with published data? | Solution: The method will depend on the precision you require.
For a quick check of isobar or isotherm binary vapor-liquid equilibrium data, the interactive property analysis is the easier option.
Go to the Properties Environment, then click on the Home tab of the Ribbon, in the Analysis group the button "Binary".
... |
Problem Statement: How to to create a blend assay with customized criteria. | Solution: You could assign different assays defining a crude tank as crude derivative tank. In a crude derivative tank you can change his information using the units workbook.
I have attached a demo model in which TA (crude KIR) and TB (crude MIN) are making a transfer to a TDUM (Dummy Derivative Tank)
In the POST she... |
Problem Statement: What are the expected values and use of UseIndication in Property XML tag section? | Solution: This Tech Tip gives a brief explanation of what UseIndication is used for and what are the expected values of it.
UseIndication value is only applicable for Honeywell BPC XML output file, is found under <Property> XML tag section and is used to indicate if the associated property specification should be used... |
Problem Statement: Is it possible to add 3rd party views or to insert data into PIMS Results Database? | Solution: To add 3rd party views or to install data into PIMS Results Database is not supported or recommended. No modification to the PIMS Results database is supported.
Customer should only use Report Writer views to get data from the database and should not insert data in the PIMS Results database tables.
Keywords:... |
Problem Statement: PIMS does not display solution status and matrix is not generated, why is this behavior being observed? | Solution: This KB Article explains why PIMS does not display solution status and matrix is not generated.
This can be observed and would be expected if the option Solve Matrix of the Standard Model Execution dialog box is not checked as shown I the following image:
If only the option Generate Matrix is select, then... |
Problem Statement: When can ASELxxx Columns and Rows be observed in the Matrix and what do they represent? | Solution: ASELxxx Columns will be present in PIMS Matrix to indicate Material Sale by Group where xxx is the group tag.
ASELxxx Rows will be present to indicate material or product constraints by group where xxx is the group tag.
We can observe the following example using Volume Sample model, when we use group GSO as... |
Problem Statement: Instruction on how to plot 3D Plot in ACM. | Solution: For 3D Plots, Plotting variable must have 2-dimensional coordinate. Below example code illustrate how you can set 2-dimensional coordinate for variable 'Z'.
Model Sphere
N as integerparameter(100);
X([0:N]) as realvariable(fixed);
Y([0:N]) as realvariable(fixed);
Z([0:N],[0:N]) as realvariable; //Prepare 2-... |
Problem Statement: How to use Parametric Analysis with Process Limits Rows | Solution: For this example, we will use the Sample Model Gulf Coast located in (C:\Users\Public\Documents\AspenTech\Aspen PIMS\Pims\Gulf Coast).
Remember that in Table Display:
The row names can be any matrix variable or rows ZLIMRTT
This table is shared by all the Solution Analysis tools
For Table PARAOBJ:
ROWNAMES... |
Problem Statement: I am using ABML Method D86 PERCENT OFF in PIMS, can this method be implemented in MBO or APS? | Solution: D86 PERCENT OFF method can be used to predict the D86 values. This method takes the component D86 seven-point distillation curve and converts them to true boiling point temperature (TBP).
In APS and MBO one option to consider is to implement a UBML Method.
The distillation correlations are the same between ... |
Problem Statement: Firewall Configuration recommendations and consideration for enabling Aspen Watch History for PCWS | Solution: If we look at solution https://esupport.aspentech.com/S_Article?ID=123707, it explains the general firewall port configuration for APC applications. Please review that KB before performing below steps.
In V10, the ProcessDataREST service is changed to use different external task TSK_ORIG_SERVER to communica... |
Problem Statement: When creating a DSN File which ODBC Driver should be selected to work with Aspen Petroleum Scheduler and Aspen Refinery Multi-Blend Optimizer and SQL Databases? | Solution: We recommend APS and MBO users to select SQL Server Native Client as an ODBC driver instead of SQL Server.
Keywords: None
References: None |
Problem Statement: See article 127329-2: How to create a back-up of history files. AspenTech (very strongly) recommends using TSK_HBAK for backing up Aspen InfoPlus.21 History Filesets. It also explains the differences between Active, Shifted and Changed Filesets.
The question answered in this new article is having use... | Solution: As is hopefully understood from 127329-2, assuming there has not been a fileset shift, each time the HistoryBackupDef record is activated, the resultant backed up fileset in the Active directory is simply a newer incremented version of the files that were last saved in the Active directory. Therefore, restori... |
Problem Statement: Aspen Cim-IO Store and Forward protects a system against loss of connection between the Aspen Cim-IO client and server by storing the data and forwarding it when the connection is re established. However; if the Aspen Cim-IO server stops functioning data loss will occur. Configuration of redundant sy... | Solution: This article outlines how to configure Aspen Cim-IO Redundancy.
Introduction:
Aspen Cim-IO supports Cim-IO redundancy. You can configure two Cim-IO servers on redundant nodes. If communications with the first one is lost, the Aspen Cim-IO client switches to the secondary node. Aspen Cim-IO Redundancy is... |
Problem Statement: Where is the configuration of BCI Program Options stored? | Solution: BCI Program Options Configuration information is stored in \HKEY_CURRENT_USER\Software\Aspentech\PimsBCI\Settings\, as observed bellow for example for file RREP Input:
Keywords: None
References: None |
Problem Statement: Is it expected to have different solutions with Aspen Refinery Multi-Blend Optimizer SBO and MBO Planning Optimization? | Solution: SBO and the Planning MBO solve different problems and it is normal to have different solutions, it is important to explain the differences in both approaches.
SBO with the min component cost objective function simply maximizes as shown bellow:
(BlendSalesPrice+VolBlend) - SumOf(CompCost*CompVolUsedInBlend)... |
Problem Statement: What is the new Template Migration Tool and how does it work? | Solution: This new Tool can be accessed by going to Menu Add-ins| AspenRpt8| Template Migration Tool. Note you need to ensure that you have selected Aspen Report Writer as an Excel add-in in order to observe this option.
In V11, Aspen Report Writer was enhanced to support use of 64-bit Windows, you can use this to... |
Problem Statement: Can Aspen Unified PIMS co-exist with other versions of Petroleum Supply Chain Products? | Solution: Aspen Unified PIMS can co-exist only with same version of PSC products.
For example, Aspen Unified PIMS V11 should not be installed on the machine that has other PSC products of V10 or any other version different to V11.
Keywords: None
References: None |
Problem Statement: Is there a way to insure I can correctly discriminate when an event starts/ends and when the Prep/Post times are represented in the Gantt Chart? | Solution: As shown in the following steps if you are adding Prep and/or Post times, you can adjust the Gantt bar thickness to insure you can correctly discriminate when the event starts/ends and when the pre/post times are represented on the Gantt chart.
In demo model add prep and post hours information to an event as ... |
Problem Statement: KB | Solution: Sample Macro: Automation of Aspen HYSYS with Python and VBA provides with some code to launch Aspen HYSYS using Python but does not invoke the application in Run time mode. The user can apply the following code for Run Time mode.
Solution
HYSYS runtime can be called from Python by making use of "HYSYS.Appli... |
Problem Statement: How do I get the Twisted Tubes dll (Koch Heat Transfer dll ) from Koch? | Solution: Shell and Tube Exchanger can link with the KHT TT dynamic link library (dll) to model such exchangers. Once installed on a computer equipped with Shell and Tube, then from Input | Exchanger Geometry | Tubes | Tubes tab, "KHT twisted tubes" can be selected as the "Tube type".
Requests for the KHT dll should ... |
Problem Statement: Some User Tools are not working for schedule group users in an APS/MBO model is this normal? | Solution: This can be due to the settings in Table COMMAND_LIST, in this table you can find the column USERGROUP, this column you can add the name of the user group that can view or access the command from the tree.
If access is required for more than one group, there must be a separate record for each group.
Note ... |
Problem Statement: How do I model two condensers model primary & secondary condenser with reflux drum using RADFRAC Column? The outlet of both the condenser's would together added to column as reflux | Solution: When the user wants to build the model with two condensers, where as the application is primary condenser shall condense but it may not condense 100%, so the provision has to be provided for the secondary condensers to save the product losses as in-terms of uncondensed vapours.
In this example file, the two c... |
Problem Statement: How do I import two or more FORTRAN Subroutine files in AspenPlus? | Solution: Please follow the steps below to include multiple fortran subroutines in Aspen Plus model:
1. Save all fortran files and aspen Plus file in a folder
2. Open Customize Aspen Plus VXX and find the folder of the files (please locate the path of the files saved)
3. Type ‘aspcomp subroutinename’ to compile... |
Problem Statement: How do I resolve the “Input Warning 1231” in EDR (Exchanger Design & Rating) | Solution: Warning 1231:
This is a warning to make user aware that the model has a full support baffle (blanking baffle) present (for S type rear heads).
However, the distance beyond this baffle has not been specified by the User. Hence, the distance beyond this baffle has been bydefault assumed by EDR and is 227 mm (... |
Problem Statement: How do I remove “Input Error 1124: Data input for Tube Path layout is unacceptable” under Fired Heater Simulation? | Solution: Reason for getting Input Error 1124 is that, the program does not support to model a separated layout and horizontal tubes using a long furnace model.
Information is available from the help.
We suggest that to use the “well-stirred model” for Firebox calculation model to eliminate Error 1124.
Keywords: Non... |
Problem Statement: How do I enter standard cubic meter per day as gas flow in a stream? | Solution: Sm3/day and Nm3/day do not represent the same measurement. Sm3/day is standard flow at 1 atm and 15°C where as Nm3/day is normal flow at 1 atm and 0°C.
To enter the flow rate in Sm3/day, follow the steps below.
1. From the Home ribbon group select Unit Sets.
2. From the Units of Measure change the unit f... |
Problem Statement: In Aspen Refinery Multi-Blend Optimizer, Blend Details Option is Greyed Out, is this normal and how can I resolve this behavior? | Solution: This behavior is expected if the MBO model is not working properly and have simulation errors. If there are errors that stop the model from optimizing the Blend Details option will be greyed out as in the following image.
To resolve this issue the model has to be free of Simulation Errors that can be foun... |
Problem Statement: Cim-IO for OPC can fetch the descriptions and engineering units for certain OPC servers. See CIM-IO Servers / Smart Data Types | Solution: for the list of servers. Previous version of Cim-IO for OPC uses the configuration files %CIMIOROOT%\io\opc\extensions.txt for configuration of smart data types. This article describes the configuration of the smart data types for current versions (v8.x, v9,x, and higher) of Cim-IO for OPC.
Solution:
For v8... |
Problem Statement: How can I change the structure of a custom definition record without having to delete the records defined against it?
Note: Do not use this article to change the structure of standard Aspen InfoPlus.21 definition records. Changes made to standard Aspen InfoPlus.21 definition records will not be sup... | Solution: Use the Aspen InfoPlus.21 Administrator to duplicate the custom definition record and make the duplicated record unusable. Next, start the Aspen Definition Editor to modify the duplicated custom definition record. After saving the changes and making the new custom definition record usable, open the Aspen In... |
Problem Statement: The header file setcim.h contains data types like DTYPREID, DTYPSHRT, DTYPLONG, and DTYPREAL to be used in the datatype argument in Aspen InfoPlus.21 API routines. Missing is a data type for character or string data.
What data type do you use when accessing character strings using the Aspen InfoPl... | Solution: Use the size of the character field for the datatype argument when accessing character strings using the Aspen InfoPlus.21 API.
Keywords: String
Character
Datatype
API
References: None |
Problem Statement: How can I convert a timestamp in Aspen InfoPlus.21 format to UNIX Epoch Time (i.e. number of seconds since 01-JAN-1970)? | Solution: Attached to this solution is a file named IP21TimeToUnixEpochTime.txt. Copy the contents of this file to the Aspen SQLplus query writer and save the query as a record defined by ProcedureDef named IP21TimeToUnixEpochTime.
IP21TimeToUnixEpochTime has one calling parameter:
tsIP21 - An Aspen InfoPlus.21 time ... |
Problem Statement: When using AspenOne Process Explorer (A1PE) Alerting (Alert Subscriptions) what are the Alert email customisation options? For example, can the Alert email subject line that is received be customised and can multiple email addresses be specified? | Solution: Currently, the alert email subject field is system generated and cannot be modified in any way.
The E-mail recipient design is on a per user basis. It’s configuration relies on a corresponding IP.21 record defined by AlertUserDef where each record is particular to an individual user. AlertUserDef user recor... |
Problem Statement: How can I prevent users from writing to the Aspen InfoPlus.21 database via Aspen Excel Add-in and/or aspenONE Process Explorer? | Solution: Use the AFW Security Manager to import the following application XML file:
AspenMESClientApplications_AFW.xml located in the C:\Program Files (x86)\AspenTech\ProcessData directory...
From there you must select the Excel Add-Ins subgroup and edit the following securable object (Standard Write) to allow or ... |
Problem Statement: When performing a test connection from the online Server, the tags show red and the CIMIO_USR_GET_RECEIVE error message is outputted. | Solution: An RTE Controller is an application that continuously reads and writes to the OPC via CIM IO. The test connection would be a hurdle in order to establish a steady connection to get data from the OPC.
In this case, the error states that the RTE controller is not receiving a reply from CIM IO in a timely manner... |
Problem Statement: How does TSK_DETECT determine when to fail over to a redundant node? | Solution: The Aspen Cim-IO utility CimIOProperties allows you to set several registry values to modify Cim-IO behavior. In particular, Aspen Cim-IO client tasks (e.g. TSK_M_devname, TSK_A_devname, and TSK_U_devname) use the parameters CIMIOPingFrequency and CIMIOMaxPingFailures to determine when to set the field IO_LAS... |
Problem Statement: Access to entries can be restricted by following three entry types on security display on configuration tab in Aspen Production Control Web Server (PCWS).
Standard
Operator
Engineer
This KB solution describes how are these access levels assigned. | Solution: The new Security page in PCWS has check boxes for entry classifications: Standard Entries, Operator Entries and Engineer Entries.
These entry classifications can be determined by looking in the [product].product.config files as follows (e.g. dmcplus.product.config or aspeniq.product.config):
- Standard ... |
Problem Statement: The AspenProcessDataAppPoolx64 stops due to repeated application failures. The Windows Application Event Log shows APPCRASH errors for AtProcessDataRest.dll. | Solution: This problem may be caused if a mapping record defined by ATMapDef has blank entry for the field MAP_CategoryFormat. This field formats the field MAP_Category in the repeat area MAP_#Categories.
To test, execute the following query on each Aspen InfoPlus.21 server serviced by the a1PE server:
select name, ... |
Problem Statement: The Aspen SQLplus function XOLDESTOK displays the "oldest allowed history timestamp" for a tag. History values can be inserted back to this time but no further. How does Aspen InfoPlus,.21 calculate this value? | Solution: There are two scenarios to consider:
Creating a record using a never before record ID
Creating a record using a record ID previously used by a tag that collected history values
Using a never before used record ID
If a record is created using a never before used ID, the "oldest allowed history timestamp" value... |
Problem Statement: Lab Sampling value is not implemented to update IQ bias and the Combined Status is always No Update Method.
This problem can be caused by setting LBUPDMETH(Lab Bias Update Method)=1, which means Lab value is only validated and not used to update bias. | Solution: Update the IQF file and reload as follow steps:
1. Open the *.iqf file in IQconfig.
2. Right click the LBU module of you IQ and select Properties context menu.
3. At Lab Update dialog, select Traditional or Scores method.
4. Save the iqf file and reload it at PCWS > Manage dialog or APCManage utility.
5. Che... |
Problem Statement: If you activate best fit storage for a point defined by IP_AnalogDef or IP_DiscreteDef, Aspen InfoPlus.21 will store the first and last values in each 30-minute period for the tag along with the tag's maximum and minimum values in the interval. The best fit data can then be used by aspenONE Process ... | Solution: Aspen InfoPlus.21 has a utility named h21asctoarc that creates file sets based on the contents of a text file.
Attached to this article is a query named bfdata.txt that creates the text file required by h21asctoarc. Copy bfdata.txt to the Aspen InfoPlus.21 server and rename the file to bfdata.sql.
The query ... |
Problem Statement: How to build a nonlinear model in DMC3 Builder for IQ and Apollo? | Solution: Nonlinear MISO model is only supported by APC Project type. You can build and export nonlinear models by follow step:
Create a APC Project at DMC3 Builder.
Import dataset to DMC3 Builder and create MISO type model. Select Nonlinear at Model Type Selection dialog.
Make sure checking Identify separate MISO out... |
Problem Statement: How to import XML Spiral files into Aspen HYSYS Petroleum Assay Manager? | Solution: In V11, it is now possible to import XML Spiral files to use in Aspen Assay Manager (AAM). Please follow the steps below to import spiral XML files.
1. Open a new case in Aspen HYSYS V11
2. Create a component list. There are 3 options:
a. Create list from HYSYS database, adding item by item.
... |
Problem Statement: How can I move all Aspen Calc calculations from a folder into a schedule group? | Solution: Attached to this knowledge base article is a query named MoveCalculationsToScheduleGroups.txt. Copy the contents of the query into the Aspen SQLplus query writer and execute the query.
The query prompts for an Aspen Calc folder name and the name of a schedule group. After receiving confirmation that your a... |
Problem Statement: This article describes an effective strategy for saving Aspen InfoPlus.21 database snapshots. | Solution: Since Aspen InfoPlus.21 uses a memory-resident database, it is very important to save snapshots of the database at regular intervals and when Aspen InfoPlus.21 shuts down. Aspen InfoPlus.21 uses a snapshot to restore the memory-resident database when starting. You should also manually save snapshots before ... |
Problem Statement: Aspen InfoPlus.21 may not start when using Symantec Endpoint Protection, and the Aspen InfoPlus.21 Task Manager Service executable (tsk_server) may consume excessive CPU time degrading Aspen InfoPlus.21 performance. | Solution: Symantec Endpoint Protection may block Aspen InfoPlus.21 executable images from running with no error logs indicating that the programs were blocked from running or may cause Aspen InfoPlus.21 processes to perform poorly.
AspenTech does know not know why Symantec Endpoint Protection may block Aspen InfoPlus.... |
Problem Statement: Why PRDMDLD is not Anti-Transformed in Aspen APC controllers? | Solution: PRDMDLD is the unbiased model prediction calculated in Aspen Watch for each controlled variable (CV) in Aspen DMCplus and APC Online control applications. One commonly used troubleshooting technique for prediction performance is to track the Controller CV DEP (Measurement) with PRDMDLD and observe any model m... |
Problem Statement: What is the use of table POOLPROP and where can it be found? | Solution: This KB Article explains the use of table POOLPROP and where it can be found.
Table POOLPROP is an internal table created during the generation of the Matrix that keeps track of the recursion structures and figures out the bounds for the Q – Variables. It can be a useful diagnostic tool to review where the b... |
Problem Statement: Aspen Plus document (.apw) files contain an embedded backup (.bkp) file. Is it possible to extract the bkp file which is included in the apw file if, for example, the apw file is corrupted. | Solution: Here are the steps to recover the embedded archive .bkp file from an .apw file. If the .apw file is embedded in a compound (.apwz), this adds an extra step before recovering the bkp file. Change the extension of the .apwz file to.zip. Then, extract the .apw file from the .zip file.
In this example, the reco... |
Problem Statement: If an output file exists, Aspen SQLplus overwrites the contents of the output file each time a query executes the command SET OUTPUT. This technical tip explains how to generate unique file names using the current timestamp so the results of a query are not lost from execution to execution. | Solution: Use the CAST FORMAT command to prepare a file name using a text string containing the date and time. By concatenating the UTC hour to the CAST FORMAT command, the file name remains unique even when changing from daylight saving time back to standard time. Use the function ISO8601 to convert current time to UT... |
Problem Statement: The following message is displayed in the “Run controls” menu when trying to run Blowdown analysis: | Solution: This is related with a convergence issue. Some general recommendations to resolve these issues can be suggested:
Reduce timestep in “Run controls” menu
Simplify the component list, by removing heavier components or water with small molar fractions
Use the Blowdown template “Single Vessel BLOWDOWN - SingleVess... |
Problem Statement: What is the meaning of Warnings W737, W769 and W753? | Solution: This KB Article explains warnings W737, W769, W753
W737: The means the constant property data in BLNPROP has a row, for example, ALK1, but no row ALK. This can be a problem if the other periodic rows are also missing for the material.
W769: The column in table BLNSPEC is not defined elsewhere in the model ... |
Problem Statement: Where should the Aspen InfoPlus.21 record SAVE_SNAP save hourly snapshots? | Solution: By default, the Aspen InfoPlus.21 record SAVE_SNAP saves hourly snapshots of the Aspen InfoPlus.21 database to the file InfoPlus21.snp located in the Aspen InfoPlus.21 Group200 folder.
Because the record TSK_SAVE instructs Aspen InfoPlus.21 to also save a snapshot of the in-memory database to InfoPlus21.snp... |
Problem Statement: Can you delete an Aspen InfoPlus.21 history occurrence? | Solution: You cannot. You may insert an occurrence into history, you may modify a history occurrence, but you may not delete one.
Key Words
history
repeat area
delete
insert
add
modify
occurrence
Keywords: None
References: None |
Problem Statement: How can I test if a port is open through a firewall between two servers (for example between an Aspen InfoPlus.21 and an Aspen Cim-IO server)? | Solution: One solution is to use telnet to test if a port is open between two servers.
Simply open a command window as an administrator and enter the command:
>telnet hostname portnumber
where hostname is the remote server, and portnumber is the port to test.
If telnet returns a blank screen, then the port is open ... |
Problem Statement: This Knowledge Base article provides query examples showing how to access the Aspen Production Record Manager (APRM) Administration and Configuration tables from Aspen SQLplus. | Solution: All the Administration and Configuration tables in Aspen Production Record Manager Administrator database are accessible from Aspen SQLplus starting with version 10.1.
Note: The queries listed below may have to be modified to include your data source and area names. The data source, server and area names us... |
Problem Statement: Part of the post-installation of Aspen Process Recipe [APR] and Aspen Process Sequencer [APS] is the DCOM configuration. Not all of the details are fully documented. This solution discusses the required DCOM configuration. | Solution: Here are the recommended DCOM configurations for Aspen Process Recipe and Aspen Process Sequencer.
Go into dcomcnfg (start > run > dcomcnfg). Check/configure the following.
In My Computer Properties COM Security tab, check the following for both Access Permissions and Launch and Activation Permissions by clic... |
Problem Statement: Is there a way to change the pending file set "path" for a selected range of file sets within one Aspen InfoPlus.21 History Repository? | Solution: The attached Aspen SQLplus query changes the pending file path for several file sets in a repository. Aspen InfoPlus.21 must be running to execute this query. The query asks for a repository name and then the starting and ending file set numbers to change the pending file set path. Next, the query prompts for... |
Problem Statement: How to configure Aspen Calc security for stand-alone or shared servers. | Solution: Stand-alone:
In the stand-alone configuration, users on the same machine have by-pass permission privilege to all Aspen Calc securable tasks. This setup also prevents any other network users from performing the same tasks on the server. When Aspen Calc is installed it does not include a securable object in th... |
Problem Statement:
How to display timestamps using a four digit year when selecting historical data using Aspen SQLplus. | Solution:
Instead of using an Aspen InfoPlus.21 timestamp format defined by TimeStampFormDef, the CAST statement accepts a FORMAT clause that allows you to determine how a query displays a timestamp.
The general syntax of the command is CAST(timestamp as type FORMAT 'template')
where
timestamp is an Aspen InfoPlus... |
Problem Statement: Why ATM_Admin is running and taking up 4 tokens on a Transition Manager Server while no active transition presents. | Solution: When Aspen Process Sequencer applications are enabled in the Production Control Web Server (PCWS), it requires ATM_Admin to be running on the Transition Manager server regardless whenever any transition is active or not. As a result, the Transition Manager consumed a standard token count, in this case 4 toke... |
Problem Statement: This article presents an effective strategy for backing up Aspen InfoPlus.21 history files. | Solution: The knowledge base article How to create a back-up of history files explains the mechanics of creating history file backups.
History file backups should be placed on a disk drive other than the one used for storing file sets for Aspen InfoPlus.21 history repositories. So, for example, if history repositorie... |
Problem Statement: The Aspen SQLplus SYSTEM command allows a query to execute operating system instructions such as 'DIR.'
If the 'z' drive is local to the Aspen InfoPlus.21 machine, then the command system 'dir z'; would return the same information as if the directory command were executed at a Windows command prompt.... | Solution: There are two ways to use a 'non-local' drive in an Aspen SQLplus query.
1) Rather than referencing a mapping letter, use the fully qualified name such as :-
System 'dir \\computername\sharename';
2) Execute a query line with the 'net use' command before referencing the network drive as follows :-
System 'net... |
Problem Statement: Getting a list of A1PE users from Aspen Process Data Rest | Solution: There is a way to see which users are currently using Aspen One Process Explorer (A1PE). It can be done through Aspen Process Data REST Samples page.
Please follow the steps below to see how it's done.
1. Open your web browser on the A1PE web server and paste the following URL link: http://localhost/Process... |
Problem Statement: How to use Markers with Tag Values in aspenONE Process Explorer? | Solution: One of the popular features of “scooters” in Aspen Process Explorer was the ability to see tag values at the Marker point on the chart.
Click and hold anywhere in the plot area will place a new Marker on the chart. Click the Marker repeatedly to toggle the display mode: either to show just the annotation lin... |
Problem Statement: Crude Inventory import fails from time to time on some user’s machines. There is no error messages showing but data from Excel are not populated in APS Audit Inv Screen. | Solution: You can find basic recommendations for Oracle db configuration to avoid potential issues with EIU by the link https://esupport.aspentech.com/S_Article?id=000062200 . Additionally, in case of issues with Crude Inventories import please consider test of CRDINV_WRITE_USING_BATCH configuration.
“CRDINV_WRITE_USIN... |
Problem Statement: Which are different Web browsers supported in Aspen Multi-Case V12? | Solution: User can use one of the following web browsers for Aspen Multi-Case.
Google Chrome
Microsoft Edge (Version 79 or higher)
Note: Internet Explorer is not supported.
Keywords: Aspen Multi-Case, browser
References: None |
Problem Statement: How to export an Aspen Multi-Case project? | Solution: The project configuration and results are saved in a database. To share projects between different users, you can export projects from the database and import them into another database as needed.
To export an Aspen Multi-Case project:
On the Projects view, in the row associated with the project that you want... |
Problem Statement: Which are different files supported in Aspen Multi-Case V12? | Solution: Different files supported in Aspen Multi-Case V12 are as follow,
The following HYSYS file types are supported:
.hsc
.hscz
The following Aspen Plus file types are supported:
.bkp
.apw
.apwz
Limitations / Exclusions
The following Aspen HYSYS and Aspen Plus cases cannot be attached to Aspen Multi-Case projects:
... |
Problem Statement: Aspen HYSYS allows the user to create their own utilities but what is the meaning of all the parameters? | Solution: These are the definitions of the parameters used in the Process Utilities Manager:
Inlet Temperature: It is the temperature of the inlet flow into the heat exchanger.
Outlet Temperature: It is the temperature of the outlet flow of the heat exchanger; where the outlet temperature is always different than the i... |
Problem Statement: I'm getting an "Exception has been thrown by the target of an invocation” message when running my Aspen FLARENET case. What does this error mean? | Solution: The error message usually indicated that Access OLEDB for whichever version of office is running on the m/c 32/64 bit need to be reinstalled here.
Please try the following workflow:
1. Uninstall the current access database engine from Program & Features in control panel
2. Download the appropriate (32/64 bi... |
Problem Statement: AspenOne Process Explorer (A1PE) not working or giving error the “Invalid Field Type” for tags to be Plotted or Admin page gives error "Process Data error 401". | Solution: Enabled Windows Authentication in IIS - Sites - Default Web Site - ProcessData.
Enabled "Use the Process Data Service" in AT PD Rest Config (C:\inetpub\wwwroot\AspenTech\ProcessData\AtProcessDataREST.config) from "False" to "True".
Flush Process Data Cache
(http://localhost/ProcessData/Samples/Sample_Admin_Q... |
Problem Statement: When configuring a new Cim-IO Interface the CimIO_Logical_Device.def file is not updated. | Solution: The Concept of a logical device is only used by a Cim-IO Client and not used by the Cim-IO Interface. On a Cim-IO client system like Aspen InfoPlus21 the CimIO_Logical_Device.def file is used by the Cim-IO client applications to identify the Cim-IO interface it connects to. In the case of Aspen InfoPlus21 t... |
Problem Statement: When using the CIM-IO Test API to read an IP.21 tag through the IP.21 OPC DA server, if the tag name includes a dot, it will return "GET successful" and "Bad Tag". How to resolve this issue? | Solution: There are two solutions.
1. Add double quotes to the IP.21 tag name that includes a dot, and the CIM-IO Test API will return "Get successful" and "Status is GOOD".
2. Use the "Cim-IO for IP.21" interface instead of the "Cim-IO for IP.21 OPC DA" interface to build the CIMIO logical device. By doing this, the... |
Problem Statement: After installing Aspen Engineering Suite, the OneDrive storage was maxed out. This can happen because Aspen Exchanger Design & Rating (EDR) installs software specific databases in the user file space, which may be the cause for users to quickly run out of cloud storage space. How can this location be... | Solution: There are two options to change the location where Aspen EDR databases are stored. The easier option is to change it from Aspen EDR itself, by manually changing this location. Follow the steps below:
Open Aspen EDR Vx.x
Go to File | Options | Files
Change the database folder to any other.
Close Aspen EDR
Re... |
Problem Statement: Why in a pipe network in dynamics mode the elevation changes are not taken into account by default? | Solution: As mentioned in the article Is it possible to include static head contributions in dynamic simulations? the user can include the static head contributions in Dynamic Mode, but the Pipe Segment model is different, by default Aspen HYSYS Dynamics doesn’t consider the elevation change in the Pipe Segment Rating ... |
Problem Statement: What is the registry variable to control the application to look only for a standalone license file? | Solution: If a standalone user wants to have the application license check out only from his standalone license file, then the user can set the registry variable “no-net” to 1 instead of default 0.
With the default value “0“, the machine will look for a standalone license first, and then it will look for a network lic... |
Problem Statement: What are the infrastructure requirements to transfer logs files to Aspentech via secure FTP (sFTP) ? | Solution: To transmit log files via secured FTP the standard TCP Port #22 (SSH) must be open in all the filtering devices (routers, firewalls,..) between the machine where the Aspen Upload Tools (AUT) is being run and the Internet gateway.
If you know you have such filtering devices in your enterprise network (or if yo... |
Problem Statement: Using WRlfTool to manually configure SLM redundant servers | Solution: Open WRlfTool.exe from <C:\Program Files (x86)\Common Files\AspenTech Shared\SLM Administration Tools> location and follow the below procedure to manually configure / modify the redundant license servers.
File | New
Add the license server information <hostname and IP address> for all the three license servers... |
Problem Statement: How does the License Checkout system work for Aspen ProMV?
When using Aspen ProMV it can be useful to understand how many licenses are used and how many are used by the different areas of the software, together with understanding how many licenses different models use. | Solution: In the table below you will be able to view a summary of the different license names together with a description of how many licenses are used by what Area and activity of the many ProMV tools.
Application License Name Area of use Number of licenses checked
Desktop SLM_RN_APM_PROMV_STD continuous/batch pro... |
Problem Statement: When trying to run docker-compose set up in the Aspen Mtell Maestro installation, you might get one of the following error messages. These errors prevent you from finishing the Maestro installation.
Error for builder Cannot create container for service builder: Conflict. The container name "/builde... | Solution: 1. Open docker-compose.yml file in Notepad.
2. Delete every line that starts with container_name.
3. Save and close docker-compose.yml.
4. Open Command Prompt (run as Admin).
5. Navigate to folder containing the docker-compose.yml file. To do this, type cd followed by the file path (for example, cd C:\Pr... |
Problem Statement: In Aspen Mtell System Manager, Asset Sync and/or Work Sync have stopped running automatically. | Solution: One potential solution is to reset the services associated with Asset Sync and/or Work Sync:
1. Type in Services in the Windows search bar of the Aspen Mtell application server. Select Services from the list of results.
2. In the Services window, right click on either Aspen Mtell Asset Sync or Aspen Mte... |
Problem Statement: When opening the History Plots from A1PE for Aspen Watch tags- AW_VIND_M Error.
The history plots of variables in PCWS are not displayed when set as A1PE, but displayed when set as web.21 HPT.
Error displayed at value column as: Map Name : AW_VIND_M is invalid | Solution:
Restart the AspenProcessDataAppPoolx64 on the webserver from IIS manager :
Key words:
History Plot ,Aspen watch
Keywords: None
References: None |
Problem Statement: Why the operating point is beyond the compressor curve speed? | Solution: The system decides the pattern by extrapolating the graph behavior. At the end, your operating point will be based on the flow.
Before you add the last curve, the operating point will go beyond that, the system will still extrapolate the graph, but there will be some issues with the accuracy.
If we have t... |
Problem Statement: Can Aspen HYSYS predict the Wax Appearance Temperature (WAT)? | Solution: In crude or heavy oils, cloud point is synonymous with wax appearance temperature (WAT). The cloud point of a nonionic surfactant or glycol solution is the temperature at which the mixture starts to phase-separate, and two phases appear, thus becoming cloudy.
Below steps shows how to add the Cloud Point:
Go ... |
Problem Statement: If tag name exceeds 49 characters, the collect.exe tool will crash upon trying to read the input file. Collection will not be successful. | Solution: There is a hard limit on character length for the tag names used in the collect input file. This limit is 49 characters, tags which names have 50+ characters will cause the collection process to end abruptly. This limitation includes the tag extension.
This limitation is only present for data collection using... |
Problem Statement: How to resolve the issue PIMS model runs fine in AO but crashes in DR? | Solution: The crash is caused by an array out of bounds in the DR MG code in Fortran. Doubled the model table limits (rows=10000, columns=4000, rows*columns=1000000) and the crash will go away. You also need to increase the LP matrix nonzeros to avoid an MG error. Set it to 1000000.
There are no plans to fix bugs and ... |
Problem Statement: Can users add header bias to derived properties in ABML/UBML correlations? | Solution: Currently MBO does not support this. If the property is derived, complex, or interaction type properties, header bias could not be added to them.
Keywords: None
References: None |
Problem Statement: When using "Get Calculated Values", we run one-minute averages for a week for a number of tags. After this, a calculation is made in a new column where it checks if the tag value exceeds a setpoint. This column is strapped as a table and then we filter out this table for only rows that exceed the set... | Solution: The problem is caused by the Microsoft Excel filter action, which triggers the Add-in formula to recalculate the data. Aspen Process Data Add-in is not able to handle correctly the MS Excel’s filtering action on the recalculation of the spreadsheet and Microsoft is not expected to address this issue.
The wor... |
Problem Statement: Aspen Fidelis Reliability Visual Studio Dependency | Solution: If a customer anticipates the need to write custom user coding in VSTA (Visual Studio Tools for Applications), they will need to purchase a commercial license from MSDN which will require each customer to request an individual quote.
For a training class, the community edition of visual studio may be used.... |
Problem Statement: An example of an override controller in Aspen HYSYS Dynamics. | Solution: The Example is an override control example of a distillation column reboiler. This is implemented through a minimum selector, between the Tray 20 temperature control and the sump level control OP.
In this case the sump level controller "LIC-101" is operating the valve at around 40-50% openings, and the steam ... |
Problem Statement: Is there a way to generate a table to report internal energy as a function of temperature and pressure? | Solution: Internal energy can be reported using Aspen Properties either for a pure component (U) or for a mixture (UMX). The file attached illustrates how to create a generic analysis to tabulate the internal energy of Ethane with respect to pressure and temperature changes. This example can be adapted to your needs.
H... |
Problem Statement: In Aspen Plus, is it possible to create a user-defined variable which is a combination of a variety of specified and/or calculated variables available in the simulation? This variable would either be reported or further used as input to other blocks or design specs and sensitivity analyses. How can t... | Solution: When working with a calculator block, the user can define a new variable or type parameter and attribute values or equations to this parameter. For example, let's say the user wants to create a variable called myvari, representing a stream mass flow multiplied by a constant. The user-variable should first be ... |
Problem Statement:
When creating an mMDM Hierarchy using Hierarchy Creation Wizard, after configuring First Level Settings, the following error is shown:
Could not find HierarchyLevelDefinition id=XXXXXX@XXXX-XX-XXTXX while evaluating RootLevel on item | Solution:
In Aspen mMDM Editor verify that the records under Hierarchy Levels are not grayed out.
If the records are grayed out, this means that the Active Date is set up in the past. Go to View > Active Date and select the option Now and then click OK to commit the change.
After this, the records from Hierarchy... |
Problem Statement: Why is the Mach Number always zero at the flare tip outlet in Aspen Flare System Analyzer (AFSA)? | Solution: The Mach Mumber calculation at the outlet of the flare tip is related to the flare tip temperature calculation. AFSA calculates the outlet flare tip temperature by first calculating the Enthalpy at Stagnation Point of the fluid at the exiting flare system. For this calculation, the program assumes that the v... |
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