Problem with state machine

Hi! I've got a VI intended to control a storage tank. I've tried to do that by creating a simple state machine that changes the value(on/off) of some valves basing on 2 conditions:
-when a certain temperature reaches a pre-set value AND its derivative is <0, the state must change from on to off,
-when some time passes the state must change from off to on.
Unfortunately I can't get this work as it never changes state (e.g if I start with on always remain on "on" and viceversa).
Could you please tell me what I'm doing wrong? I'm attaching the screenshots of the 2 states.
Thanks!
Solved!
Go to Solution.
Attachments:
screenshot1.jpg ‏302 KB
screenshot2.jpg ‏300 KB

It looks like your shift regsiter might not be wired correctly.
Attachments:
screenshot1.jpg ‏303 KB

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I am having problems with Time Machine and having enough space to finish my last back up.

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Take a look at this link, http://support.apple.com/kb/HT1427

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Hello
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Solved!
Go to Solution.
Attachments:
daq assistance thermocouple(sate machine raj).vi ‏436 KB

Rajab84 wrote:
Thanks apok for your help
even with pressing start it keeps running on wait case
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OK..I modded the example to stop after 2 cycles. Also recommend taking the free online LabVIEW tutorials.
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Attachments:
Untitled%202[1].vi ‏42 KB

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Solved!
Go to Solution.
Attachments:
Relay Test State Machine.vi ‏207 KB
Relay Test State Machine.vi ‏207 KB

Hi James,
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Kind regards,
Andy
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Attachments:
Relay Test State Machine.vi ‏209 KB

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miketangokilo wrote:
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contact Customer Support Services for more information.
   at
Microsoft.EnterpriseManagement.Common.Internal.ServiceProxy.HandleFault(String
methodName, Message message)
   at
Microsoft.EnterpriseManagement.Common.Internal.EntityObjectsServiceProxy.GetRelatedManagedEntitiesByManagedEntityTypesAndCriteriaWithInstanceQueryOptions(IList`1
parentManagedEntityIds, Boolean recurse, IList`1 managedEntityTypeIds, IList`1
managedEntityBaseTypeIds, IList`1 criterias, String languageCode,
InstanceQueryOptions instanceQueryOptions)
   at
Microsoft.EnterpriseManagement.InstancesManagement.GetRelatedObjectsInternal[T](ICollection`1
instanceIds, ICollection`1 criteriaCollection, TraversalDepth traversalDepth,
ObjectQueryOptions queryOptions)
   at
Microsoft.EnterpriseManagement.Management.DataProviders.ManagedEntityProvider.GetContainedManagedEntities(IDataObjectCollection
targetEntities, ICollection`1 recursionTypeNames, ICollection`1 baseTypeNames,
String criteriaString, List`1 valueDefinitions, List`1 sortValueDefinitions,
String typePropertyName, String typeWithIconPropertyName, Boolean
propertyCollectionRequested)
   --- End of inner exception stack trace ---
   at Microsoft.EnterpriseManagement.Presentation.DataAccess.DataProviderCommandMethodInvoker.Invoke()
   at
Microsoft.EnterpriseManagement.Monitoring.DataProviders.RetryCommandExecutionStrategy.Invoke(IDataProviderCommandMethodInvoker
invoker)
   at Microsoft.EnterpriseManagement.Presentation.DataAccess.DataProviderCommandMethod.Invoke(CoreDataGateway
gateWay, DataCommand command)
   at
Microsoft.EnterpriseManagement.Presentation.DataAccess.CoreDataGateway.ExecuteInternal[TResult](DataCommand
command)
   at Microsoft.EnterpriseManagement.Presentation.DataAccess.CoreDataGateway.<ExecuteAsync>b__0[TResult](<>f__AnonymousType0`1
data)
Error in Event Log==============
GetRelatedManagedEntitiesByManagedEntityTypesAndCriteriaWithInstanceQueryOptions
for session ID uuid:9078152d-9ff1-4c68-a997-c8088a16a34c;id=5.<o:p></o:p>
Exception
message: The creator of this fault did not specify a Reason.<o:p></o:p>
Full
Exception:
System.ServiceModel.FaultException`1[Microsoft.EnterpriseManagement.Common.UnknownDatabaseException]:
The creator of this fault did not specify a Reason. (Fault Detail is equal to
The query processor ran out of internal resources and could not produce a query
plan. This is a rare event and only expected for extremely complex queries or
queries that reference a very large number of tables or partitions. Please
simplify the query. If you believe you have received this message in error,
contact Customer Support Services for more information.).<o:p></o:p>
<o:p></o:p>

I am so sorry for my mistake. Below is the url.
http://blogs.technet.com/b/scom_atlas/archive/2013/10/22/scom-2012-sp1-ur4-is-out.aspx
Juke Chou
TechNet Community Support

Problems with Time Machine restore

Hi - am hoping someone can help me.
My laptop got stolen last week and I bought a new one yesterday. The old one was kind of messy - I'd had it for a while and had been living with some weird error messages and that sort of thing - so I only wanted to transfer certain files - photos, music, movies and a few documents - to the new one from Time Machine via an external hard drive.
I set up as a new user and chose to use Migration Assistant to transfer the files afterwards. It seemed to work fine but on closer inspection no files created after 2008 (ie any new music or photos) transferred. It's the photos I'm mostly worried about as I used Senuti on my iPod to recover the music and the video files were saved to the same external hard drive Time Machine was using but seem to be accessible. When I 'browse other Time Machine disks' and go into the last backup the Pictures folder has the little red minus/stop symbol on it, so I'm thinking it might be a permissions issue? I've tried restoring that folder but nothing changes.
I'm wondering if I need to go back to migration assistant and start again but transferring everything this time? Will that even make a difference? Am hoping the files aren't lost forever (I'm a mum)!
Please don't tell me how hopeless I am at all this or get narky - I know it and I'm already in a world of misery about the stolen mac and missing pics...

Supermonk61 wrote:
I recently had to do a restore all with time machine. I made sure everything was backed up before hand and ran the Leopard install disk. Went to utilities and did a restore all from time machine backup with no problem. Chose the date I wanted of March 24, 2009 and began running the restore which took about 2 hours. When everything came back up it seemed to have restored no problem but it used one of my backups from a year ago.
Hi, and welcome to the forums.
Why do you think it restored the wrong backup?

Running SubVIs with state machines in parallel

Hi,
I'm new to labview, working on it for a couple of weeks.
I'm building an application where there are a number of identical elements atht each is controlled by an identical state machine which is independent from all others.
My problem is how to place each state machine in a subvi and running them in parallel.
Each of the subvi has a while loop for the state machine, and the program gets stuck inside never entering another subvi.
Is there an elegant way to run a couple of SubVIs each holding a state mchine in parallel?
I come from the VLSI world so there is no problem implementing this kind of logic in hardware description language but the labview way to do it eludes me...
thanks you very much for any help,
Eyal.

braxat2000 wrote:
Hi,
Thank you everybody for your kind help.
The problem was solved and my application is OK now.
For future reference,
I used the execution reenter subvi to allow multiple instances of it in parallel, and added a global variable that the subvis can change, and the main can read from.
Used semaphores to make sure correct parallel write to common sources.
Cheers,
Eyal.
Great solution- but how to avoid race conditions in the global variable? Globals are notorious for causing headaches, nightmares and nausea so if there is a way to avoid them and enforce a bit of cause- effect its highly desirable. In this case you have clones of a re-entrant vi running in parallel so you CAN'T use a functional global (the most common solution see Ben's famous Action Engine nugget)
Since we can't enforce data dependence we need something else as a cause-effect team..... Change event dependency would be a good substitute. Two methods for getting this type of dependence would be a dynamic event or my favorite the "Named Queue" set the data type of the named queue as a cluster of instance of source and data from your global and the main loop will be able to see EVERY write to the queue AND the source. Moreover the queues datatype can be expanded to offer any information the main vi needs to be a good executive. In fact a new sub vi that "monitors status" of the clones would make the application highly scalable and robust.
Jeff

Problem with state machine

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