Syncrhronization problems in Parallel Mode

I've developed a program im TestStand using the Parallel Process Model. I'm controlling 4 equipments with GPIB and a DaQ Card. When I run my first Socket I don't have problems and the sequence works perfect, but when I run more than one Socket the sequence fails and give me the error:"Attempt to unlock a lock that is not locked by this thread". Everytime I make some write or read operation to my equipment with GPIB I lock this step between lock and unlock. Can someboday help me? Maybe I'm not using properly the lock functions. Where can I find examples about this?

Without seeing your sequence it is difficult to say what exactly is going wrong. Basically, to use a TestStand lock, you create it with a name and lock it using the name before the critical section of your code. When you lock a lock, you specify a lifetime for which when it expires the lock will automatically be unlocked (I believe the default lifetime is until the sequence finishes executing). In addition you can perform an EarlyUnlock operation to release the lock before the lock lifetime expires.
Another way of using locks is to use the synchronization tab of the step properties dialog on any step. You give it a name of a lock and it will automatically create and lock the lock before calling the step's code module and then automatically unlock it after the step compl
etes.
-Doug

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Hi Venkat,
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Plz do refer the following links:
U may plan the availability of ur communication channel using "Planning Availability Times" feature
http://help.sap.com/saphelp_nw04/helpdata/en/45/06bd029da31122e10000000a11466f/frameset.htm
/people/sravya.talanki2/blog/2005/11/29/night-mare-processing-huge-files-in-sap-xi
hi check the below links for reference
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10748ef7-b2f0-2910-7cb8-c81e7f284af5
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/7086f109-aaa7-2a10-0cb5-f69bd2affd2b
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/2498bf90-0201-0010-4884-83568752a857
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/cc1ec146-0a01-0010-90a9-b1df1d2f346f
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Details related to SQL Developer installed:
Oracle SQL Developer 1.5.1
Version 1.5.1
Build MAIN-5440
Copyright © 2005,2008 Oracle. All Rights Reserved.
IDE Version: 11.1.1.0.22.49.35
Product ID: oracle.sqldeveloper
Product Version: 11.1.1.54.40
Version
Component     Version
=========     =======
CVS Version     Internal to Oracle SQL Developer (client-only)
Java(TM) Platform     1.5.0_06
Oracle IDE     1.5.1.54.40
Versioning Support     1.5.1.54.40
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I will post this info to help people who may have similar problem.
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How to handle runtime error in PreUUT step when running in Parallel mode

I would like to run Test UUTS in parallel mode, and some actions are done in PreUUT such like read serial number and fixture control.
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Solved!
Go to Solution.

This question does not depend on PreUUT or ParallelModel at all.
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Hi all,
I am using SCXI-1000 chassis and PCI-1024E DAQ card.
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Preetam,
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