Global constants-> process Variables

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• Global variables or shared unique process variables?

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  Given that the
  introduction of shared variables, whenever I needed a global variable, I have
  use shared unique process variables. But I started now return to
  using the old global variable because I think that there are some significant drawbacks
  to the single shared variable. Here is the ability to search for
  case of variables and also the ability to view or change the value of
  the variable (OK, we have the variable Manager, but I found slow and)
  unstable). My question is, are there reasons to use the new single
  process variable actions on old global variables?

  Dear Terje,

  As you use only the variables on a single system. There is no advantage to the use of unique process shared on Globals variables.

  Infact a global variable uses a little less processing power that a global variable as the implementation of a shared variable single-pocess effect is a global variable with the timestamp feature.
  If you use a shared variable single process, if you don't need the timestamp feature, then disable it to use less processing power.

• DSC - event trigger for single shared process Variables

  Hello

  I understand how to set up a Notification of change of value for published network Variables shared so that an event fires when this particular shared Variable changes. However, I can't understand how to do the same for the single shared process Variables. Is it still possible? Can someone shed light on this point, please?

  Thanks in advance.

  -James Pham

  VRspace4,

  Hello! It is not possible to activate alarming for unique shared process Variables. A workaround to set up a Notification of change of value would be to create a network shared variable that reads in your Variable single process, but at this point in time, it could be useful that replace your variable with a variable that is shared on a network.

• Regulator PID very slow to reach the value Point and zeros process Variable when it should not

  Hello

  I am using a PID controller to regulate the emission of a filament current in an ion gauge, but I'm running into several problems.

  The first and less important, are the controller of PID VI takes at least 5 minutes to get the current where it needs to be.  Is it possible to speed this up?

  The second and more important, are that the PID controller tends to zero the process variable before you start the process of getting the close process of the target value variable.  This can be seen in the attached VI: I write 5.8 volts voltage filament - something I did at the beginning to try to get the controller PID for the process close to the target faster - value variable but when the PID controller starts to do his thing, he kills the tension before anything, rather than rise of 5.8 V.

  The attached VI is a single which has these problems.  VI actual ion gauge controller I've written has the same problems, but in a form even more frustrating.  I have a while loop set up for the filament voltage to where it should be (using a PID controller) first and foremost, then a loop of data acquisition, which also includes a feedback loop in the form of a PID regulator to maintain the filament voltage.  When the second PID controller starts to run, it concentrates the tension that the earlier had set, taking another 5 + minutes to reach the point where we can take data and giving us 5 minutes of false data in the process!

  Does anyone know why PID controllers are behaving like this, and what can I do to fix/work with this behavior?

  Hello

  It seems that PID VI will always be 0 for the first iteration. You can, however, use the advanced PID VI and set up the first iteration in manual mode. After subsequent iterations, you could then define this automatic mode and there will be a transition smoothly. I think this will give you the desired behavior.

  -Zach

• Return TopCPU process variable rule data

  I try to customize the rule runaway_process and have some difficulty to retrieve the values of the data model. The goal is to have an email sent when this rule fires for some hostnames. The scope was pretty easy, but get the values of process variables to be included in the e-mail message is a challenge.

  The rule is defined in the TopCPU table and below that is Process_TopCPU. Can I return the latest value data there with:

  Server.get("DataService").retrieveLatestValue (Scope, "Process_TopCPU"). GetValue()

  However, this seems to return the rows in the table of 5 albums processes. I want to return the details (order, Pct_CPU) from the top of the page process only and looks like you have to go a little further below and pull data from Process_TopCPU_Entry. I do not understand how to return these individual values but... can anyone help with this?

  The difficulty here is that the Observations are so-called Observation complex (several processes CPU high of perception at any time)

  The following Scriptlet will work (assuming you reach on the host object.)

  It will search all ALBUMS of Cpu processes in the current collection that correspond to a specific filter criteria and create a string that contains name and uses CPU for each of them. I hope this will help you to build your own version for your use case.

  // Define the filter closure. you could do this inline but I like to declare this on it's own section for readabillitydef filter = { processEntry->  return processEntry.cpuUsage > 0.03}
  
  // use teh find Observation entries function which is part of the Foglight core functionallity and filter for Processes that use more then 2% CPU in my casedef entries = findObservationEntries(#topCPUProcesses from $scope.cpus#,filter)
  
  // Header def msg =  "Processes with high CPU Usage :\n"
  
  // create a single line for each process using a GString templatemsg += entries.collect{ "Name: $it.command  cpu: ${it.cpuUsage *100} %"}.join("\n")
  
  // return the message return msg  
  

  I've also attached a screenshot which describes the function used

  

• Get-VMHost: you have changed the world: DefaultVIServer and global: DefaultVIServers system variables. This is not allowed. Please reset them to $null and reconnect the server vSphere.

  Hello world

  After the upgrade to PowerCLI version 5.1 however I can't run even the simplest command because it always ends up with the following error:

  Get-VMHost: you have changed the world: DefaultVIServer and global: DefaultVIServers system variables. This is not aRA. Please reset them to $null and reconnect the server vSphere.

  C:\Users\Albert\AppData\Local\Temp\7900df01-f6c1-48c6-ac1e-047dfff90fb6.ps1:1 tank: 11
  + Get-VMHost < < < <
  + CategoryInfo: NotSpecified: (:)) [Get-VMHost], InvalidState)
  + FullyQualifiedErrorId: VMware.VimAutomation.ViCore.Types.V1.ErrorHandling.InvalidState, VMware.VimAutomation.ViCore.Cmdlets.Commands.GetVMHost

  Can someone please suggest to me how to fix the script for my v3.2.0 PowerGUI IDE can work with the latest PowerCLI in my computer laptop 64 bit Windows 7?

  Thank you.

  And I just tried with PowerGui (same versions of PowerGUI and PowerCLI you use), no problem.

  Must be something local on your desktop.

  Maybe try a uninstall/reinstall of PowerGUI?

• Need information to set up the XmlDocumentInfoBean process variable?

  Dear team,

  We want to use the QueryForMultipleRowsAsXML service for one of the requirement. For the information this service XML parameter, we'd spend column/xml mappings dynamically. We found using the XmlDocumentInfoBean process variable (JDBC Data Type) we can pass the column mapping dynamically. Could you please help us to set up the column mappings by using this variable. In fact, we must use this type of variable.

  
  

  Thanks in advance

  Patrick

  
  

  
  

  
  

  Ravi,

  Attached is a working example. That should help you.

  -Wasil

• extraction of XML in process variables: (no not the case)

  Hello

  I have a process that takes xml as input data and it must extract the data in process variables, I created. For this I used setvalue processes, where the input parameter is of type xfaform. For this variable, I gave the form as the url of the model (I tried both pdf and the xdp). It loads the schema so file when I checked in the settings of schema. I traced this value (one of the objects in xml) to an another process in the setvalue parameter variable. When I run this process, I don't see the value of the XML object is assigned to the process variable.

  The process is not any mistakes out there. I checked the records as well. I don't know what Miss me in the mappings. I use version 8.2. I have attached ACL that contains the processes and resources. Your help will be very appreciated.

  Thank you

  Chaitanya

  I gave the pdf as a reference model to the xfaform variable. So, will receive navigate the XPath for companyname, it takes thatpath.

  You might be able to break through to the node you want to in xPath Builder, it does not mean that the xPath expression will work based on the data you will receive. You must ensure that you send other xdp data that the xPath will not work.

  Send by email button submit xdp data. Just xml. The difference is that data xdp encapsulates the XML with data/data/xdp tags. What you see when you get off using xPath for an xfaForm variable Designer.

  I think you have two options:

  1 use a normal submit button, set the data to submit to the XDP data and submit URLs using the MAILTO Protocol.

  2 - having an input xml variable and change your XPath to match the structure of the xml file you will receive.

  Jasmine

• Redirect causes loss of range of process variable

  With the help of jsf/adf bc 10.1.3.4. I have a need to programmatically run a redirect with the following code:
  
  FacesContext facesContext = FacesContext.getCurrentInstance ();
  ExternalContext externalContext = facesContext.getExternalContext ();
  String requestContextPath = externalContext.getRequestContextPath ();
  HttpServletResponse response = (HttpServletResponse) externalContext.getResponse ();
  
  try {}
  response.sendRedirect (requestContextPath + "/ faces /" + pageName);
  }
  catch (IOException ex) {}
  throw new RuntimeException ("Impossible to redirect to" + pageName + ", e.g. =" + ex, ex);
  }
  
  facesContext.responseComplete ();
  
  It seems that all the variables that have a scope of process before running the above code are being lost/allowed out. I guess this is normal? Is it that I can do to redirect with the above code and not lose the extended process variable? Or I have to use session scope instead? Thank you.

  Hello

  'Re missing you the ViewHandler of coding.

  FacesContext context = FacesContext.getCurrentInstance();
  ViewHandler handler = context.getApplication().getViewHandler();
  
  // Get the URL for the specified view id with the required view parameter to maintain the pageFlowScope
  String viewUrl = handler.getActionURL(context, viewId);
  
  ExternalContext eContext = context.getExternalContext();
  
  // Encode the URL to maintain the user session in URL rewriting mode
  String encodedUrl = eContext.encodeActionURL(viewUrl);
  
  try
  {
      eContext.redirect(encodedUrl);
  }
  catch (IOException ex)
  {
      throw new FacesException("unable to redirect to " + pageName + ", ex = " + ex, ex);
  }
  

  Please note that the redirect code itself was also changed to not be dependent on HttpServletResponse.

  Kind regards

  ~ Simon

• Get an instance of a single process to another process variable

  Hi Dan,.
  I read some time there is a thread where you said that you have code samples to get an instance of a process to another process variable.
  I tried to do, but I'm not able to do.
  I tried with Instance.getVar, which returns an object, but I can't get to my Bpmobject.
  Can send you the code to achieve this?
  Thank you very much in advance
  Kind regards

  Hi Ruben,.

  Sorry - Notification with the Iterrupt is the only way I know too.

  Dan

• How a shared single process variable be FIFO and single element?

  How a variable shared unique process can we both FIFO and the only element at the same time?

  I read the NOR recommended for communication between a loop deterministic and non-deterministic loop.  He is said to use SVariable ingle-process Shared FIFO and single element.  OK I can't have something... because in my mind these two things must be mutually exclusive.  How do you have a single item 1?

  

  What 'RT FIFO activé' means, that when you use the variables shared in a timed loop it actually is written to a RT FIFO created automatically.

  The key here is that generally shared variables are shared resources and can add jitter to deterministic tasks if another loop uses the variable at the same time as your loop of deterministic.

  So here's the takeaway, when shared with RT FIFO active Variables using:

  • Normal loops read and write the shared variable in the same way as they always do.
  
  
  • Call loops read and write a FIFO RT rather
  
  
  • The data is automatically passed between the RT FIFOs and shared in a nondeterministic loop variable

  RT FIFOs exist because their architecture referred to as non-blocking so that when the timed loop trying to access it is guaranteed immediate access to a memory space.

  Does that answer your question?

• PID control with big delay in the process variable

  Hello

  My goal is to control the temperature via a valve and heat exchanger. I proceeded variable (temperature) measured from a hose. This temperature should be raised a few degrees with a heat exchanger. So basically I need to order a valve that allows the water to flow through the heat exchanger to raise the temperature to the desired level.

  My original plan was to use a base PID regulation to operate the dispenser. However, it is about 0.5 to 1 minute of delay time in the temperature probe after I opened the valve, which increases the temperature. This leads to a situation where the PID regulation valve fully open during this period (trying to get the temperature rise). Then once the temperature begins to rise it fires quite quickly. PID begins turning the tap off almost immediately, but because of the time delay in the sensor, the temperature exceeds seriously. This led to severe oscillation and at worst unstable processes. I tried to adjust the PID control to "predict" the timer to close the valve in advance to minimize the excess, but failed.

  I would appreciate if anyone has any ideas how to make this type of control with Labview PID functions. I also wonder if there is a better type of control procedure for this scenario as a PID control?

  -Lars

  This is a very common situation in the heating control, and generally PID can be adjusted to make it work. How do you do the tuning? If you do it by trial and errors, you have little chance to succeed. For a slow process with time delay, I like to use the method Cohen Coons, or similar open Ziegler-Nichols-loop method. The idea is that you temporarily remove or disable the PID. Set the valve in a fixed position and wait for the temperature to stabilize. Then, change the setting of the valve and record temperature at regular intervals data until the temperature is stable again to a new value. Use these data to get the initial values of PID using the equations provided by the tuning method you choose.

• What is the best place to store global constants?

  Hello

  I want to store some constants and access through procedures and functions, which would be the best place to do this? I thought that the chains of substitution might work, but it does not work for me in my procedures. Can we use the Substitution string in code compilation such as procedures and functions? I use SQL developer to write procedures.

  See you soon

  Hello

  Table is good if 'permanent' could change so you can create the form of the APEX to maintain those.

  You can also use package specifications just for constants for example

  CREATE OR REPLACE
  PACKAGE MY_GLOBALS
  AS
    g_const_1 CONSTANT DATE := TRUNC(SYSDATE) + 365;
    g_const _2 CONSTANT VARCHAR2(30) := 'somestring';
  END;
  

  Then, you can see in the procedures, functions and processes APEX as (package_name.constant_name) MY_GLOBALS.g_const_1.

  Kind regards

  Jari

• Global and Local variable... why it doesn't work?

  I'm confused.  .__.

  haha

  in any case, I wrote a class for my AS3 flash game.  It's that everything works well until what I called a method and got an error message.  After a bit of debugging, I was able to determine that my problem is when I try to assign a global variable (and the class property) to a local value, within the service itself, where the local variable.

  Here is part of my class:

  Sheet/public class extends Sprite {}

  private var number: int;

  private var sourceBitmap:Bitmap;

  private var sourceBitmapData:BitmapData;

  private var tileWidth:int;

  private var tileHeight:int;

  public void {sheet (number: int, tileWidth:int, tileHeight:int)}

  This.Number = number;

  this.tileWidth = tileWidth;

  this.tileHeight = tileWidth;

  displayImage();

  init();

  }

  public void displayImage() {}

  var imgLoader:Loader = new Loader();

  imgLoader.contentLoaderInfo.addEventListener (Event.COMPLETE, done);

  If (number > = 100) {}

  imgLoader.load (new URLRequest("CharSprites/Female/"+number+".png"));

  }

  else {}

  imgLoader.load (new URLRequest("CharSprites/Male/"+number+".png"));

  }

  function done(evt:Event):void {}

  var myBit:Bitmap = Bitmap (imgLoader.content);

  addChild (myBit);

  this.sourceBitmapData = myBit.bitmapData;

  trace (this.sourceBitmapData);                                              ... sourceBitmapData are here

  }

  }

  private void init() {}

  trace (sourceBitmapData);                                                       sourceBitmapData is null here

  }

  }

  }

  I thought that I was able to assign the value of hard bitmapData to a property class (global variable) inside a function and have it exists outside.  I was wrong?

  How do I get around that?

  I know that I can write a function to return the Bitmap image, but as the function is called after the EventListener and depends on my charger, I don't know how to get around this problem.

  Thank you very much!

  Ya. My recommendation is to delay your init() function call until your image will load. So just move the call to init() in your service done or what needs the bitmapData to your function made move.

• How to create a 'global' consts aessable from anywhere.

  So far I have not made any extension or such classes. I googled cela and have not been able to get a result close to anywhere.

  In the main stage, root, I am defining "enumerations" as:

  MAXHP const = 0;

  const CURRENTHP = 1;

  LEVEL = 2 const;

  Corresponding table spot.

  I need to use these variables const in a MovieClip and may very well no other means that:

  MovieClip (parent). LEVEL;

  Is there a simple way, preferably not to extend a class or something.

  Thank you.

  It makes no sense to use a static class as shown - by instantiating, even if it's a singleton. You must use a static like Flash with Math.whatever or Event.whatever...

  package {}

  public class constant

  {

  public static const = "Hello World" SOME_VARIABLE:String

  more...

  public void Constants() {}

  }

  }

  Then you come to Constants.SOME_VARIABLE to use a constant.