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Problem Statement: The Inferential Qualities (IQ) application will sometimes show the letter 'p', 'u', and/or 'a' beside its name when viewing either
the PCWS > Online > Overview page,
the PCWS > Online > Manage page, or
in the desktop tool APCManage.
What do these letters mean and how to fix it? | Solution: Each IQ runs two processes: the bias update process and the prediction process. If you open up Task Manager > Details tab and add a column for command line, you will be able to see two tasks called iqp_main.exe for each inferential and the command line will tell you which IQ and which process is running for i... |
Problem Statement: What are some of the potential issues seen when performing EO synchronization in Aspen HYSYS? | Solution: Please see potential issues which users may see when performing EO synchronization:
Users may see the message below when EO synchronization occurs:
This occurs because HYSYS allows automatic phase dropping. When this option is enabled, HYSYS automatically adjusts the allowed phases in each flash associated w... |
Problem Statement: In case OPC DA server is not available, Is it possible to collect real time data from OPC HDA server directly?
Does Aspen CIM-IO support OPC HDA to collect real time data? | Solution: The OPC HDA Servers and OPC DA Servers exposes process values from different set of interfaces.
Cim-IO is designed to read History Values from the OPC HDA Server only for disconnected interval, I.E., either when the interface was not running, or the connection with the OPC DA Server was lost.
Cim-IO always r... |
Problem Statement: How can we differentiate Aspen HYSYS Dynamics and Aspen HYSYS Dynamics run-time? | Solution: Very often , the users gets confused about the usage of Aspen HYSYS Dynamics and run-time. This KB Article will discuss about the basic differences between Aspen HYSYS Dynamics and Aspen HYSYS Dynamics run-time.
Aspen HYSYS Dynamics is a dynamic process simulation software that has been integrated into Aspe... |
Problem Statement: This Tutorial described the steps to set up multiple AspenWatch Servers Connection to a PCWS Web Server. | Solution: PCWS can support the connection of multiple AspenWatch Servers Running different Controllers. These connections are normally done using different Data Sources that have configured the appropriate services. These services can send the information from the AWServer (IP21 Database) to PCWS using TCP/IP protocol.... |
Problem Statement: This article described how a Dataset File (CLC or txt) can be saved or imported to excel from DMC3, DMCplus, and IQ Desktop Applications | Solution: A CLC file is typically a file that collects MV and CV information that can be used in DMC3, DMCplus, and IQ for Identification purposes. These files are normally external files obtained by different means. However, the APC desktop application allows also the creation of different file types such as CLC, VEC,... |
Problem Statement: This article describes a simple way to add new IODevices for the collection of Misc/PID Tags from AspenWatch Maker. | Solution: To add a new device you can follow the next steps:
1.- You can add a new device on AspenWatch by modifying the CIMIO_LOGICAL_DEVICE.def file located on the following URL:
C:\Program Files (x86)\AspenTech\CIM-IO\etc
if you check the list on AW Maker and compare it to the list on the CIMIO_LOGICAL_DEVICES.de... |
Problem Statement: How to get rid off the following error message appinit.dll is either missing or unregistered when launching the software? | Solution: In order to get rid off the following error message appinit.dll is either missing or unregistered”:
Please make sure that IT team unblock or whitelist appinit.dll as well the AspenTech shared folder through its security applications. As well have them register that DLL.
In summary, please make sure that the... |
Problem Statement: How to specify the discharge pressure when it is calculated in Aspen HYSYS? | Solution: In reality the compressor discharges to a system of a certain backpressure. But with the inlet stream specified and the compressor geometry input, the discharge pressure is calculated.
In order to fix the discharge pressure, from the mixer Design/Parameters, change to 'Set Outlet to Lowest inlet' option, the... |
Problem Statement: What are the data generated in Aspen OptiPlant 3D sizing for the structures and piping racks? | Solution: Aspen OptiPlant 3D layout can calculate and propose structural member sizes for the pipe racks. The structural member sizing report generated from Aspen OptiPlant comprises of the following details:
Proposed cross section of transverse beam member
Proposed cross section of column member
Total Load on the tran... |
Problem Statement: How to share an AUP Model to AUS using a Site Catalog? | Solution: To share the model, you will have to create a Site Catalog, which will serve as a bridge. From your AUP model, go to Model Data>Site Catalog then connect to a site catalog.
Select New Catalog, define a name and click on connect.
Then, click on Go to Site Catalog. Start by selecting the Modes you want to pub... |
Problem Statement: What are the correct steps to install CP3 for AUP? | Solution: Before we start make sure you have the next:
Access to admin right on the application server
An account for our support site. If you don’t have it, you can register here with your corporate email: AspenTech Support Center: User Registration
Sufficient rights to modify your Input DB
Now follow the next steps:
... |
Problem Statement: How to add new roles in AUP? | Solution: From the Home Page, click on Roles, then on the plus button on the right. You can assign Administrator or Creator Site Roles here. You can also remove them by clicking on the cross or change them by double clicking on the Roles cell and selecting the desired role from the drop-down.
Here’s what each of them ... |
Problem Statement: When I export table CASE from AUP and try to reimport it, I get the error: “No spreadsheet with valid tables were found. Check for table formatting errors. Tables must follow PIMS formatting rules” even when I make no changes to the table. | Solution: The reason you are not being able to import the Excel file without troubles is that when you export table CASE from AUP it will always uses a long tag format. Hence, when you export table CASE to do some changes and then reimported, make sure to not use the Data sheets use PIMS short tag format.
Keywords: Imp... |
Problem Statement: How can I share crudes in Aspen Assay Manager? | Solution: To share your crudes in AAM with your colleagues you can follow the next steps.
Open Assay Manager.
Go to the Library tab on the Left Lower Hand Side Menu
Click on Manage Custom Libraries on the Top Menu
Check the path where your libraries are saved. They are usually here: c:\users\[your name]\appdata\local\a... |
Problem Statement: I got an error that pointed me to a log file with the next or similar message, how can I fix it?
Exception Message: Too many rows (65537): The maximum number of rows supported by this file format is 65537 | Solution: There is a maximum of 65536 rows for .xls excel files. Fortunately, .xlsx files can take up to 1,048,576 rows. Right-click Model Settings| Output Spreadsheet Extension| .xlsx
Keep in mind that this setting can be different for the same model but running in DR and AO.
Keywords: 65537, max rows, .xls, xlsx, ex... |
Problem Statement: AspenOnline.exe suddenly does not respond and Aspen online GUI for project cannot be accessed. | Solution: The root cause is a corrupted Configv10.MDB file in the online project folder. Please try the following:
Stop Data Server (it will stop engine as well)
Go to the project folder Replace the corrupted Configv10.MDB with new copy.
Perform consistency check to see whether it picks up any error.
Open AspenOnline a... |
Problem Statement: What are the layout rules for equipment spacing in Aspen OptiPlant? | Solution: In Aspen OptiPlant 3D, the feature called plot-plan layout rules or equipment layout rules enable you to check for the spacing between any objects modelled for the confirmation against their project’s safety and maintenance standards. Aspen OptiPlant checks for the spacing between the equipment and structures... |
Problem Statement: How to convert ACCE Excel file to Aspen OptiPlant Equipment list in Excel format? | Solution: The OptiPlant-ACCE interface can exchange data between OptiPlant and ACCE for equipment, pipe-racks and piping. It is a bi-directional interface for equipment and pipe-rack transfer whereas, it is a one-way transfer (from OptiPlant to ACCE) for piping quantities transfer. It helps the Owner-Operators and othe... |
Problem Statement: What is the different between “Z” vs “U” arrangement of plate heat exchanger? | Solution: The explanation of U or Z configuration (see below snap) has been documented in HTFS DR36 Plate Heat Exchangers report.
For running a design mode case, the program will decide the arrangement. For rating or simulation, the user needs to specify based the existing exchanger geometry specification.
Keywords: Pl... |
Problem Statement: What is meaning of “Risk of Maldistribution” Yes or No in EDR Plate heat exchanger? | Solution: Aspen Plate heat exchanger gives notification for the “Risk of Maldistribution” while working with plate heat exchanger.
Flow maldistribution may occur when there are a large number of plates, and the flow of a single pass stream has to be distributed among a large number of channels in parallel. The flow re... |
Problem Statement: How to develop CO2 loading (with respect to CO2-MEA-Water) plot with CO2 partial pressure? | Solution: This article demonstrates how to set up an analysis case to do TV flash calculation for the system of MEA-H2O-CO2.
1. Create an Analysis case (MEA-CO2) in Properties environment, input MEA and H2O flow rate for 30 wt% MEASolution as 30 kg/hr MEA and 70 kg/hr H2O:
2. Go to Variable, specify temperature and ... |
Problem Statement: How is the power requirement determined in crusher? What is impact of mechanical efficiency term? | Solution: This article will help to explain about power calculations for Crusher unit operation block:
Basically, it's doing a PQ flash, with P = block pressure and Q = Power * Mechanical efficiency.
The thermal heat used to determine outlet temperature is considering mechanical efficiency.
The following equation d... |
Problem Statement: How to get the entrainer to be filled in reflux drum while running batch distillation for heteroazeotropic system? | Solution: This article is based on separation of azeotropic mixtures like heteroazeotropic mixtures where user will use reflux drum to fill with the entrainer while performing batch distillation.
The sample model attached to this article will help to show how to get the entrainer's in the reflux drum prior starting th... |
Problem Statement: How to design the A or V frame air cooled exchanger using the design mode of Design with fixed outside flow or Design with varying outside flow? | Solution: In version V12.2, user can design the A or V frame air cooled exchanger using the design mode of Design with fixed outside flow or Design with varying outside flow.
You can specify geometry limits, process limits, and optimization options similar to design the standard frame. To design an A or V frame, you... |
Problem Statement: This Knowledge Base article provides knowledge of when do we need to run IDC (Install Database Configuration) , a tool used as a part of Aspen Watch. | Solution: What is IDC (Install Database Configuration) in Aspen Watch Configuration?
This utility updates the Aspen Watch Performance Monitor Server InfoPlus.21 database record structure. This step is required for first-time installations and upgrades.
To run the Install Database Configuration utility:
From the main m... |
Problem Statement: This Knowledge Base article provides possible steps to resolve the issue of Aspen InfoPlus.21 Manager not starting successfully accompanied by the following error:
error starting task TSK_DBCLOCK.
“Unable to start TSK_H21_PRIME task” | Solution: The above-mentioned error message could indicate that due to executable file for TSK_DBCLOCK was not selected in IP21 manager. The executable path could be accidently removed
The excitable file (dbclock.exe) should be selected for the DBCLOCK task to start
Also, the reason could be changing in the sequence ... |
Problem Statement: It is a known issue that when trying to open iq_extract.exe without the right privileges, the command prompt displays “-- Fatal Error in MPF system”. | Solution: Here is a screenshot of the problem described:
This issue is caused by the Command Prompt running without administrator rights, this is a requirement for iq_extract.exe to work:
For some users even if they select “Run as administrator”, the command prompt will not elevate, please make sure that the window d... |
Problem Statement: This article describes a | Solution: to fix the AspenWatch Menu display on the APC Web Viewer
Solution
In Version 12 a new APC Web Viewer was released as a new interface to Operate DMC3 Controllers. This new APC Web Viewer is installed with the default installation of the Web Server (PCWS). The APC Web Viewer has the capability to display the AW... |
Problem Statement: What happens if the past time parameter for a repository is set to the default of 24 hours, and you unbuffer an Aspen Cim-IO Store file from the weekend (which could include data from 60 hours ago)? | Solution: Data older than 24 hours will be lost (without error messages). Always have the past time parameter set to at least 72 hours so you are able to recover a store file from the weekend. If you have to change this parameter:
1. Open the IP.21 Administrator
2. Expand the tree view until you see you... |
Problem Statement: The following issue has been reported in V12.1 and V14. If the Windows user account that is logged in to the APC Desktop server has spaces in the account name, when running DMC3 Builder Deep Learning training, it gets stuck on the status of initializing network and will not finish the training proces... | Solution: This is a known issue and reported as Defect 840857. The target fix is the next release V14.2.
The workaround that can be used is to create another user account that does not have spaces, log out of the current one, and log back in with the new account to run the training again.
Keywords: deep, learning, st... |
Problem Statement: DMCplus Build does not have an interface to configure Smart Tune priorities and preferences. Instead, the user must use DMC3 Builder to configure the settings to update the CCF. This article describes the steps taken to enable and configure Smart Tune for a DMC3 Controller that is deployed using the ... | Solution: 1. In DMCplus Build, open your DMC3 project and go to Tools > Options and select Enable Smart Tune and Enable the Smart Tune CCF Update command in DMC3 Builder. Then save the CCF and close it. This button lets DMC3 Builder know that when you import the CCF, it will enable the feature to configure Smart Tune a... |
Problem Statement: This | Solution: frames a simple but useful procedure to convert step test information collected in excel into a CLC file that can be imported into DMCplus Model, IQModel, and DMC3 Builder
Solution
To solve this issue, we will require to IQModel application. IQModel is a standard desktop application (It always gets installed ... |
Problem Statement: This article describes a workaround to create custom plot groups for a specific controller. | Solution: By default, the plot groups option can only plot pre-defined groups from the controller (INDEPENDENTS, DEPENDENTS, SUBCONTROLLERS, AND TEST GROUPS). However, there is no default way to select specific variables to plot as a custom group.
The default way to use the plot groups is by going to the Plots tab in ... |
Problem Statement: How to get rid off the following error message Convergence block $OLVER did not converge normally in the final pass in Aspen Plus? | Solution: In order to get rid off the following error message Convergence block $OLVER did not converge normally in the final pass in Aspen Plus, you may increase the allowed iteration times to 100 from (Convergence -> Options -> Method -> Wegstein table), then the model will be able to converge.
If the error still pe... |
Problem Statement: V12.0 MES web server includes a separate installation of Apache Solr (before V12.0 this had been more integrated into Apache Tomcat). We are asked whether it is possible to upgrade Apache Solr. | Solution: The only supported version of Solr is the version deployed with the MES web server product. This is important given that you should apply the appropriate patch to address the Log4j (CVE-2021-44228, CVE-2021-45046, and CVE-2021-45105) vulnerability.
Note, for V12.0, V12.2 and V14.0 MES web servers, Apache Solr... |
Problem Statement: On certain cycles a ramp may show a Combined Status of > Hi Limit or < Lo Limit even though the measurement and steady state target are within limits, what is the reason for this? | Solution: The Combined Status is not related to the Steady State Target, it's related to the URDPTG (CalculatedUpperImbalanceLimit) and the LRDPTG (CalculatedLowerImbalanceLimit), there is more information on the ActiveConstraintIndicator entry dictionary, this is what it says:
More information on the CombinedStatusIn... |
Problem Statement: When you have multiple sites, it is a good idea to enable site level security in Mtell to allow super users to view assets specifically only to their sites. This reduces the likelihood of a super user to make changes of a similar asset but on a different site by accident.
Pre-requisite
How to set up... | Solution: To enable site-level security, open Aspen Mtell System Manager and click Settings under the Configuration tab. On the left panel, select Security Settings and check the boxes 'Security Enabled' and 'Site Filter Enabled'.
Select Users on the left panel under Security, and on the bottom right there will be a p... |
Problem Statement: How can I access Aspen elearning from within Aspen HYSYS, Aspen Plus or Aspen EDR? | Solution: Aspen elearning may be accessed directly from AspenTech software like Aspen HYSYS, Aspen Plus and Aspen EDR. Please follow the steps below to access:
1) Open the AspenTech software
2) Open a new case or an existing file and go to the Resources tab and click on Aspen Knowledge.
3) Select ‘yes’ to a... |
Problem Statement: How to get rid off the following error message “ERROR WHILE EVALUATING PROP SET FREEZEPT FOR STREAM MIX SUB-STREAM
THE PROPERTY FREEZEPT CANNOT CALCULATED
BECAUSE ASSAY DATA WERE NOT ENTERED” in Aspen Plus? | Solution: In order to get rid of the error message, you will need to input FREEZEPT Assay data from Assay/Blend tab in the Properties Environment.
At least 4 points must be specified in ascending order for the distillation curve
and at least 4 points must be specified for each property
Once the required Basic Data an... |
Problem Statement: How to break and join streams in Aspen Plus? | Solution: To break a stream on the Process Flowsheet:
Select the stream on the flowsheet and right mouse click
Select “Break Stream” for the stream context menu
If results exist, you will be asked if you want to reconcile the stream
Enter the name of the new product stream created
To join two streams:
Select the two st... |
Problem Statement: When I perform a Publish All, not all my properties are published to table EV_REC_PROPS, why is that? | Solution: The max size of ID column on _EVENTS, _EVENTS_MBO is 255 characters, and it is the composed string of stream properties for Product Receipt. If the events contain too many properties, it can exceed the 255 characters limit, the rest of the characters will be truncated and won’t be saved to EV_REC_PROPS or EV_... |
Problem Statement: When using Unscrambler models with SIMATIC SIPAT, you may come across the following error:
Error calling CAMO function: Description: Access denied | Solution: The Unscrambler engine (OLUCX and OLUPX) software must be installed with the same Windows user account running the SIMATIC SIPAT calculation service, the engine will only work for that user as the license files are stored under the users' environment. If not, you will receive an access denied error when loadi... |
Problem Statement: How do I set up user access to Aspen AI Model Builder? | Solution: To request for an AI Model Builder account, please contact customercare@aspentech.com . You will receive an email with a link to activate your account. Once you have activated your account, please follow these steps to setup access to AI Model Builder:
Navigate to: https://iam.aspentech.ai/
Login with the ema... |
Problem Statement: How to simulate an orifice using Aspen Hydraulics? | Solution: Orifice calculation can be performed using Aspen Hydraulics functionality. Access to Aspen Hydraulics via Model Palette / Piping and Hydraulics section. Pay attention that Aspen Hydraulics Orifice must be located between two pipes in order to solve it. If you would like to calculate required orifice diameter ... |
Problem Statement: A simulation has been created in Aspen Plus with ACM models (Aspen Custom Modeler Model Export). When exporting to Aspen Plus Dynamics as flow or pressure driven, the simulation exports but it does not load up in Aspen Plus Dynamics. When trying to open it directly in Aspen Plus Dynamics, many errors... | Solution: In Aspen Custom Modeler, when you right click the model in the Simulation Explorer, Custom Modeling, Models, Exported Model Properties, you have the option to change the Display name.
The problem is that when exporting the file from Aspen Plus to Aspen Plus Dynamics, the file will be using the display name,... |
Problem Statement: When the Input Generation process is executed, users sometimes get the warning ERROR: The header line <header ID> cannot be found for branch <branch ID>. | Solution: A branch line references a header line that is not listed in the line list. Either the header line does not exist or the line ID is not entered correctly. Check the information of this line in the line list.
Key Words:
Aspen OptiPlant 3D Layout, Input Generation, Run Batch, Routing
Keywords: None
References... |
Problem Statement: When the Input Generation process is executed, users sometimes get the warning ERROR: Line ID <Line ID> is repeated more than once in line list. Ignoring the first line. | Solution: Check that each line ID in the line list is unique.
Key Words:
Aspen OptiPlant 3D Layout, Input Generation, Run Batch, Routing
Keywords: None
References: None |
Problem Statement: When the Input Generation process is executed, users sometimes get the warning ERROR: Entry at line <Line No> in equipment list has invalid format, ignoring the line. | Solution: Check that this line adheres to the equipment list format rules.
Key Words:
Aspen OptiPlant 3D Layout, Input Generation, Run Batch, Routing
Keywords: None
References: None |
Problem Statement: When the Input Generation process is executed, users sometimes get the warning ERROR: Invalid equipment type <type> at line <Line No> in equipment list. | Solution: Check that the equipment has a valid type in OptiPlant format.
Key Words:
Aspen OptiPlant 3D Layout, Input Generation, Run Batch, Routing
Keywords: None
References: None |
Problem Statement: When the Input Generation process is executed, users sometimes get the warning ERROR: Invalid rack direction for line <Line ID> in N/S rack <rack ID>, Ignoring the line. Must have ‘N’ or ‘S’ as direction. | Solution: Either change the direction component of the ID to a valid direction, or change the rack ID to one that lies in the direction specified.
Key Words:
Aspen OptiPlant 3D Layout, Input Generation, Run Batch, Routing
Keywords: None
References: None |
Problem Statement: When the Input Generation process is executed, users sometimes get the warning ERROR: Invalid rack direction for line <Line ID> in U/D rack <rack ID>, Ignoring the line. Must have ‘U’ or ‘D’ as direction. | Solution: Either change the direction component of the ID to a valid direction, or change the rack ID to one that lies in the direction specified.
Key Words:
Aspen OptiPlant 3D Layout, Input Generation, Run Batch, Routing
Keywords: None
References: None |
Problem Statement: When the Input Generation process is executed, users sometimes get the warning “ERROR: Invalid rack direction for line <Line ID> in E/W rack<rack ID>, Ignoring the line. Must have ‘E’ or ‘W’ as direction. | Solution: Either change the direction component of the ID to a valid direction, or change the rack ID to one that lies in the direction specified.
Key Words:
Aspen OptiPlant 3D Layout, Input Generation, Run Batch, Routing
Keywords: None
References: None |
Problem Statement: When the Input Generation process is executed, users sometimes get the warning “ERROR: Line <Line ID> references itself at end point, ignoring the line | Solution: Either change the line ID, or change the ID it is branching from, so it is not connecting to itself.
Key Words:
Aspen OptiPlant 3D Layout, Input Generation, Run Batch, Routing
Keywords: None
References: None |
Problem Statement: When the Input Generation process is executed, users sometimes get the warning “ERROR: Line <Line ID> references itself at start point, ignoring the line. | Solution: Either change the line ID, or change the ID it is branching from, so it is not connecting to itself.
Key Words:
Aspen OptiPlant 3D Layout, Input Generation, Run Batch, Routing
Keywords: None
References: None |
Problem Statement: Why does the insulation thickness value is set as -1 in Aspen OptiPlant model during the creation of line list? | Solution: Line list is a file that contains selected data on all the lines in the project. It may be created through Aspen OptiPlant Line-List template, Excel, Schematic Creator or can even be extracted from an intelligent P&ID. While creating a line list, by default the insulation thickness value is -1.
To create a l... |
Problem Statement: What does NOT LICENSED run status on Aspen Watch Maker mean and how can it be corrected? | Solution: The NOT LICENSED status is the initial status of a controller. If a controller is not running or it has been started but has not yet run, it will generate this message. Once the controller has started and acquired a valid license, the status of the Aspen Watch collection in Watch Maker will go to Initializing... |
Problem Statement: How to disable the put operations on CIM-IO? | Solution: 1) Launch the CIMIO Interface Manager, select a CIMIO interface instance in the left pane tree control.
2) The User invokes the Enable/Disable PUTs action in the right pane. This causes the Enable/Disable PUTs dialog to appear.
4) Stop the selected CIMIO to OPC interface, click “Enable\Disable PUTS”, then ... |
Problem Statement: This Knowledge Base article provides Explanation on why we need to Exclude AspenTech Files and Folders from Anti-Virus Scanning. | Solution: The reason for bypassing virus-checking on these files is because anti-virus software checks files that change for potential viruses. System performance can be degraded with continual scan checks of files that may update frequently. Also, there will be files that get created/deleted during the system operati... |
Problem Statement: When attempting to do a Repair Archive on the file sets for that repository
the Repair Archive start with a status of - Repair Archive in Progress, then turns to Not Responding, until we get the error:
Repair Archive Error - Investigate problem 4 repairing archive!!! | Solution: Restart InfoPlus.21, to do so:
Open the InfoPlus.21 Manager
Click on Stop Database and let it stop completely.
Click on Start Database, and let it start completely.
Keywords: InfoPlus.21
IP21
Repair Archive
Problem 4
References: None |
Problem Statement: Cannot add end Point to InfoPlus.21
“Error while trying to test connection for (https://localhost:6584): error from … : rcp error: code = Unavailable desc = connection error: desc = transport: authentication handshake failed: tls: first record does not look like a TLS handshake” | Solution: Update gRPC server task definition in IP.21
Run the IP.21 Manager
Make the input parameters to the TSK_GRPC_SERVER
task:
-s IP21GRPCServer.key IP21GRPCServer.crt
Restart the task in the IP.21 Manager
For more details, please look at the attached file.
Keywords: Error 6584
Cloud Connect
Connection Error
GRPC
R... |
Problem Statement: It is possible to use one client machine for multiple users to access through a remote desktop protocol? Yes. and it can be used simultaneously. | Solution: The only way you can have multiple users logged in at the same time is if the Server is Configured as an Application Server, and the Users login via Remote Desktop, a CITRIX Client, or some other Remote Terminal Services Login.
In addition to that, there are some Windows or Microsoft Setting that also needs... |
Problem Statement: How to set back the default nozzle position when the user defined nozzles are not satisfactory in Aspen OptiPlant 3D Layout Model? | Solution: The Aspen OptiPlant software has a series of Rule Based Nozzles that are associated with each equipment type. The program will calculate nozzles according to the equipment orientation and position. The default rule based nozzles of an equipment can be modified or customized using this Assign Custom Rules | Ru... |
Problem Statement: How to utilize user APED databases created in previous versions? | Solution: Aspen Properties Database Manager (APDM) can be used to manage all aspects of Aspen Properties Enterprise Database (APED), such as creating, registering, backup and restore of databases. APDM can be accessed through the following path: Start | Programs | Aspen Tech | Aspen Properties Vx.x | Database Manager -... |
Problem Statement: To do a better selection of the algorithm type when creating a Deep Learning Inferential Model, more information is required. The information on the help file is too brief and it would be useful to know which algorithm I need to use if for example the model is highly nonlinear, if not a lot of data i... | Solution: The help file Deep Learning Model Case - Training View provides the following description for the three types of algorithms available to develop Deep Learning Inferential Models:
GRU: Gated Recurrent Network - A recurrent neural network that models nonlinear dynamic processes.
LSTM: Long Short Term Memory N... |
Problem Statement: How to integrate data between two dates to calculate the area under the curve using Aggregate table SQLplus?
For example:
You want to calculate the area under the curve that draws the TAG_A between two dates in Process Explorer.
To read all the values one can write this SQL sentence:
SELECT IP_TREND_... | Solution: Calculating the area under the curve is a calculus type of calculation whereas the Aggregates Table in SQLplus returns statistical calculations such as AVG, MIN, MAX, etc. The Aggregates Table will not have a value that you can select and get the area under the curve.
So in short, in order to calculate the a... |
Problem Statement: Users may receive the following message when creating a calculation from within Aspen Calc on a node where the Aspen InfoPlus.21 server resides:
Failed to create calculation. Not authorized to create, modify, delete, copy or rename of any type of calculation on this node.
They may also receive the fo... | Solution: Make sure that the information contained in the followingSolutions has been implemented:
How to configure Aspen Calc for stand-alone or shared servers
Failed to connect to server <servername>, permission denied
What can cause error Failed to connect to <server>: The remote server machine does not exist or is ... |
Problem Statement: How to create a custom definition record on Aspen InfoPlus.21 V9 and higher? | Solution: To create a custom definition record, find the tile Definition Editor or Definition Editor x64 on the Apps page.
Almost all custom definitions are classified as “Normal”. Click menu item Definition Records | Create | Normal Definition. A new window appears.
The menu choices for the definition editor will ... |
Problem Statement: What is LNG Exchanger in Aspen HYSYS? | Solution: * Multi-Pass Heat Exchanger known as LNG Exchanger in Aspen HYSYS uses:
- Multiple hot and/or cold streams
* Degrees of freedom approach works much like a column operation in Aspen HYSYS
- Need to provide sufficient process information and constraints to satisfy unknow variables (DOF =... |
Problem Statement: What is Safety Analysis Environment in Aspen HYSYS? | Solution: * Safety Analysis Performs relief valve sizing and rating calculations in the Safety Analysis Environment
- Introduced in Aspen HYSYS V8.3
- Can be used as an alternative to HYSYS Dynamic Depressuring
* Contains full capabilities for PSV sizing calculation and report generation
* Enter... |
Problem Statement: What is the purpose of using Case Study in Aspen HYSYS? | Solution: * Case Study allows you to monitor various dependent variables as independent variables are manipulated
- Multiple variables can be manipulated or monitored
* Added from the Home tab of the ribbon, clock the Case Studies button
* Results can be shown in tabular or graphical formats
* In conjuncti... |
Problem Statement: How is the column efficiency designed in Aspen HYSYS? | Solution: * By default, column calculation assume a theoretical, equilibrium stage model
- Number of stages defined refers to theoretical stages
To adjust column performance towards real behavior, enter efficiency data; two types available:
- Stage efficiency
- Component efficiencies
* Value of 1.0 assumes perfect, the... |
Problem Statement: What is the purpose of Set Operation in Aspen HYSYS? | Solution: Set operation fixes the value of a specific process variable relative to the same variable in another object.
Using the set operation, one can establish a linear relationship between the two variables:
Y = m*X + b
Where m = multiplier, b = offset
Keywords: Aspen HYSYS, Set, Operation
References: None |
Problem Statement: What is the criteria our Physical Property System follows to select a liquid reference state in the calculation of pure liquid heat capacity and pure liquid enthalpy. | Solution: This is the criteria that our property system follows in the calculation of pure liquid enthalpy (HL) and pure liquid heat capacity (CPL):
1) For liquid reference state, the DHL09 subordinate property route has to be always selected. This route can be selected by checking Use liquid reference state on the... |
Problem Statement: Some or all of the Mtell IIS pages and adapters are not working. These include:
Mtell View
MIMOSA
APM
EAM and Historian adapters
A view of the Mtell IIS pages from IIS Manager
Here are examples of the errors you will see for each of these pages. To browse the webpages:
Open IIS Manager
In the Connec... | Solution: This is a result of .NET Trust Levels being too low for these sites. The .NET Trust Levels can be changed in IIS Manager.
Open IIS Manager
In the Connections page on the left, expand the server name, Sites, Default Website, AspenTech, Aspen Mtell
Click on one of the affected pages (APM, MIMOSA, MtellView, and... |
Problem Statement: When you try to edit an existing agent or create a new agent in Aspen Mtell Agent Builder, on the Machine Learning Agent Wizard – Step 2 of 4 page, you get the following error:
(Default Exception Handler) Application Exception:
End Date cannot come before Start Date
This happens for all agents on a... | Solution: This error occurs when you have a negative pre-failure interval on one of the failures for an asset/location in this Equipment Set. A pre-failure interval is the time period of detectable degradation leading up to a failure, so it does not make sense for the value to be negative. Changing it to a positive val... |
Problem Statement: If the Windows Defender Firewall is blocking inbound connections, then the GDOT Online and Web Viewer servers will not be able to communicate. Here is a guide on how to create inbound rules to allow connections through certain ports. | Solution: The following article uses the connection between the GDOT Online server and the GDOT Web Viewer server as an example but can be applied to other AspenTech products that depend on the communication between servers to work.
When the GDOT Online server and the GDOT Web Viewer server components are installed on ... |
Problem Statement: When attempting to create an SQLplus database link, the following error appears: Failed to open LINKS.DAT | Solution: Below are some of the possible causes that will result in the above error.
1. Directory does not exist.
When creating an SQLplus database link, the system attempts to access or, if necessary, create the file links.dat in the sql folder:
%ProgramData%\AspenTech\InfoPlus.21\db21\sql
Note: The actual directo... |
Problem Statement: This issue can occur when you are using an alias for the Alert Manager server. The most common reason is because you have a wildcard certificate you want to use that is different from the server’s fully qualified domain name (FQDN).
For example, the wildcard certificate is issued to *.aspentech.com, ... | Solution: You will need to generate a certificate for the FQDN. A self-signed certificate is fine.
Start IIS Manager.
Under Connections at the left, click the name of the computer.
In the middle panel, under IIS, double-click Server Certificates.
Under Actions on the right, click Create Self-Signed Certificate.
Enter a... |
Problem Statement: Say for example you have a model which evaluates the PSD of solids in crystalization operations. There are various measures which could be of interest, such as:
- the average particle size
- the median size | Solution: The average particle size is easy to evaluate, as it is the sum of the sizes multiplied by the PSD fractions.
The median particle size is a bit more tricky as you have to find the size which cuts the PSD curve in two parts of equal area. It is a bit of a challenge to write this in equation-based form, so it... |
Problem Statement: Is it possible to include CAS Numbers in a new Aspen Properties Enterprise Database (APED) Databank? | Solution: You can create a component databank of property parameters from legacy DFMS input files (.inp) and MMTBS files (.dat) from the DFMS format input.file (dfm file) expoerted from Aspen Properties or Aspen Plus.
For including CAS numbers, you need to manually create a .dat file with the following format.
It st... |
Problem Statement: This knowledge base | Solution: shows which versions of Aspen Mtell are compatible with the different versions of APM Insights and Aspen Mtell Alert Manager.
Solution
Mtell V11.1 Mtell V12.0 Mtell V12.0.1 Mtell V12.0.2 Mtell V12.0.3 Mtell V12.0.4 Mtell V12.0.5 Mtell V12.0.6
APM Insights
V12.0 Compatible Compatible Compatible Not Compatibl... |
Problem Statement: Are the ASME codes updated in EDR V12.2? | Solution: Yes, ASME 2021 is incorporated into EDR V12.2.
Keywords: EDR, ASME 2021
References: None |
Problem Statement: Is it possible to merge two Flare System Analyzer files? | Solution: Yes, to do so you need to export one of the files and then import it into the other one. The general procedure for Import/Export can be found inSolution 000090485.
There in the first step of the import, make sure that you uncheck the box that says Import as New. If you do not uncheck this box you will replace... |
Problem Statement: I am getting errors in MOC, how do I enable debugging mode? | Solution: By default debug is activated in MOC although you need to add additional keys to get additional information on a specific feature behavior or error message.
Debug files are, by default, located in: C:\ProgramData\AspenTech\AeBRS\MOC\Debug
To review a list of the debug:
Up to V10, open in Notepad the file:
C:\... |
Problem Statement: How do I set a specific timeline range for a graphic created in the Aspen InfoPlus.21 Browser Graphic Studio? | Solution: It is possible to accomplish this by using Javascript OnLoad event for the specific graphic.
An example is provided here:
var dateNow = new Date();
var msNowPlus = dateNow.getTime() + (15 * 1000); // 15 seconds ahead of now
var msTwoHours = (2 * 60 * 60 * 1000);
setTimeWindow(msNowPlus - msTwoHours, msNowPlu... |
Problem Statement: Connecting to Aspen InfoPlus.21 OPC DA server from an OPC client application fails. No IP21DA_Server.exe process is listed in the Task Manager on the Aspen InfoPlus.21 server. You also see a crash event recorded on the Aspen InfoPlus.21 server in Window Event Viewer | Windows Logs | Application:
Faul... | Solution: The Aspen InfoPlus.21 server product includes a OPC DA server, Aspen.InfoPlus21_DA.1 that allows OPC compliant programs to connect and view information from the Aspen InfoPlus.21 database. This is a .NET component that needs to be made available to the component object model (COM) runtime by registering the c... |
Problem Statement: Is it possible to track greenhouse gas (GHG) emissions in terms of CO2 equivalents of global warming potential (GWP)? | Solution: Aspen Plus V7.3 includes new features for calculating the net greenhouse gas (GHG) emissions associated with your process. You may also enter a carbon fee (cost/equivalent mass of carbon dioxide) to calculate the annual carbon tax. These features are based on methods published by the US EPA and the European C... |
Problem Statement: With the release of MES cumulative patch 3 for v8.8 it is now possible to specify any path on the aspenONE Process Explorer (a1PE) web server as the location of the files that get displayed in the Menu Tree (and in later versions the Navigation Pane) - these files represent the published graphics, sa... | Solution: describes how to correctly configure a custom folder for the a1PE user files. It also describes known symptoms of problems you may see if you have not followed all the steps correctly.Solution
1. Specify the a1PE root directory in the Process Data REST service config file.
To do this open the Process Data RES... |
Problem Statement: A bucket is a container inside an SLM license file of type Network that allows grouping license keys. The first bucket is indicated as the Default bucket. This purpose of this Knowledge Base article is to describe how to make the client computers access non-default bucket(s) by using the SLM Configur... | Solution: 1. Go to Start | All Programs | AspenONE SLM license manager
2. Click on the Configure button (You will need administrator rights to complete the following steps)
3. On the license server that is already configured, click on the Show Bucket Icon.
4. Here you can select t... |
Problem Statement: When modifying a limit on the Aspen APC Web Interface, there is the box for “Optional comment for this change” but it is not clear where these messages are stored, they do not appear on the Messages section. | Solution: When modifying a limit on the Aspen APC Web Interface, there is a text box to write optional comments justifying this change:
These comments are stored by Aspen Watch, the way to retrieve them is on PCWS going to the History tab -> Aspen Watch (APC) -> ControllerName and going to the Message Log section.
Al... |
Problem Statement: User defined entries can be displayed on the Aspen APC Web Interface as a column for Operators or Engineers to see, this can be done by creating or modifying the apc.user.display.config file. | Solution: Let’s use as an example a User Defined Entry called UDExample1 that is connected to the DCS and reads valuable information for each variable that we want the operators to easily see from the Aspen APC Web Interface.
The way to add it as a column is by creating or modifying the apc.user.display.config file un... |
Problem Statement: How to Download and Install Aspen Fidelis V12 CP6 to Work with ENG Tokens?
Prerequisites:
Before starting the installation process, it is necessary to get the updated license file to the SLM Server.
We recommend you Request support from AspenTech CS&T to get an updated license file.
This can be done... | Solution: Close Aspen Fidelis.
Go to Windows Start menu.
Expand the Aspen Fidelis folder.
Open “Aspen Fidelis License Declaration”.
Select “ENG” option.
Click “OK” button.
Launch Aspen Fidelis.
License checkout failed. There was a problem in getting the license SLM_RN_APM_AFT
Cause:
Aspen Fidelis is looking for the... |
Problem Statement: How to determine whether the IQ history file is corrupted? | Solution: (A) Extract History File to Examine if Corrupted:
Online IQ applications have their own internal databases that store data use for bias updating. On occasion, those history files can get corrupted, especially during an unexpected reboot of the server. Once the history is corrupted, the update process stops u... |
Problem Statement: What are the conditions (temperature and pressure) for the Bulk Specific Gravity value specified for an Assay/Blend? | Solution: The specific gravity is at 60 F and 1 atm.
For a stream with the assay, the specific gravity can be reported using the Specific Gravity (SG) or Standard Specific Gravity (SGSTD) properties (They are the same) to verify. The attached file can be opened in V11 and higher.
Keywords: None
References: None |
Problem Statement: This article frames a couple of settings to check when the download of Zipped files from PCWS Fails | Solution: PCWS V12.1 allow you to download Collected Tag information using the Aspen Watch Maker Miscellaneous tag utility. The data collection is retrieved from the AspenWatch Server (IP21) using a default SQL script that returns some vec. Files in a compressed zip file format. This process is automatically executed, ... |
Problem Statement: In Aspen Plus 12.1, I click “AI Training” from the “Home” tab on the ribbon. An error message about working folder name shows up as follows: | Solution: Please change username to not include special characters like _
We believe it is industry standard that certain special characters are not accepted in usernames and passwords. For example, gmail has similar limitations in username selection.
While Windows allows users to use _ any change for us would involv... |
Problem Statement: How to pause a simulation at a specific time using a Task in Aspen Custom Modeler? | Solution: The following example and attached file illustrates how to pause a simulation at any specific time using a Task inside Aspen Custom Modeler (ACM).
1. Declare a variable on the Flowsheet, then you can define the equation to calculate time, for example:
EndTime as time_(free);
... |
Problem Statement: When using AORA on Windows 10, an empty error box pops up when selecting the Expert View under Tools. What is the cause of the issue and how to resolve it? | Solution: This issue usually happens when moving a 32-bit AORA software from a 32-bit Windows operation system to a 64-bit Windows operation system. The AspenTech.MSC.Settings.xml file in C:\Users\USERNAME\AppData\Local\AspenTech folder was configured based on the 32-bit operation system. After transferring it to a new... |
Problem Statement: Recload files and their corresponding definition records | Solution: A recload (.RLD) file is a file of records that is loaded into the database. Some RLD files are designated as default selections when using the Snapshot Creation Wizard, while others can be selected manually. Additionally, when upgrading, you may need to manually load RLD files using InfoPlus.21 Manager in or... |
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