Statechart module is not debuggable...

Hello,
I have a statechart which compiles ok (TMS_SM included), but when I attempt to run it/call it from a "Run StateChart" call it comes back with a Block Diagram error:
" Run Statechart: XNode is not executable"
There appears to be no way to debug this problem directly (I have deleted all the changes that I had made since it previously worked, and tried removing all the 'odd' controls from in Inputs.ctl and Outputs.ctl to no avail).
Thanks
Andrew
Attachments:
TMS_SM.lvsc ‏549 KB

I'm quite happy with the statechart module, My main program has three statechart's, two of which I would say are more complicated than yours. Mine have fewer states but they use more advanced features (hierarchical states being a big one) and have a lot more reactions. Really complicated state systems are much easy with the module in my experience (but I'm directly modeling them in the statechart instead of trying to translate UML). But you need to understanding how exactly the order and how entry, exit, reactions and transitions are handled, to take full advantage of statecharts.
Some useful tricks I've used are:
Hierarchical states, combined with entry and exit actions, allow for easy acquisition and release of different resources, or resetting statedata.
Reactions are often a simpler solution to transitions.
Outputs can be used just like StateData, in other words they they hold there value between evaluations of the state chart.
You can set the priority of exit transitions, which is handy to choose states based on guards instead of triggers.
It's been a few LabVIEW versions since I needed to really work with them, so my knowledge is a bit rusty, so this might not be quite right.
Sometimes I would have to Force regeneration to locate errors (may no longer be an issue)
Debugging used (I assume it still does) to force the statechart to depend on UI Thread (even in a compiled program), so I would always turn off debugging when I didn't need it.
Pushing something on the internal queue forces an additional evaluation step (this can be used to make temporary states, that don't have to handle external triggers)
I dug up some of my older posts where my knowledge was fresh (I believe the call limit bug has been fixed, but it didn't apply to my method hybrid of using statecharts)
One of my old posts where I talk about my hybrid statecharts architecture
http://forums.ni.com/t5/LabVIEW/Statechart-locks-up-after-2-20-1-calls/m-p/674145/highlight/true#M30...
And a post dealing with debugging statecharts.
http://forums.ni.com/t5/LabVIEW/statechart-module-locking-up-and-unusable/td-p/641814/highlight/true
I tried to look at your example but their missing pieces so I can't try to figure out the bug. I would try an older version, to check if something got corrupted (I think I've only had VI's corrupt on me, but those can create nasty bugs), if you don't have a version control system I strongly suggest you get one. I get Xnode errors trying to open statecharts on system with out the statechart module, but it sounds like you have the module installed. The statechart isn't brought up too often on the forums so I suspect it's an uncommon module for people to use.

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Solved!
Go to Solution.
Attachments:
lvlog07-08-09-18-04-09.txt ‏2 KB

Looking at this quickly, I do not know the core root cause, but I am guessing that you could work around it by putting your guard or action code into a subVI and using that subVI instead of placing the code directly in the guard/action. Something appears to be going wrong as we try to commit the guard/action VI you created for the state - I am guessing there is a bug in this process as it encounters some of the class stuff you are using, and using a subVI to wrap it will avoid this.
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I am trying to create a project using the statechart module, and one of the techniques I am trying to use is a "master-slave" statechart structure, illustrated by the code I have attached to this post (you probably need the statechart module installed to look at my example code). The problem I have recently discovered is that the slave statecharts cannot be launched more than once without raising an Error 1100 at Obtain Queue. I have gathered from a few other posts that the cause of this error is the fact that the First Call primitive is used by the Statechart module to initialize the statechart when it is first run. This works fine for the first launch of the slave statechart, but the second launch and subsequent launches of the statechart fail on Error 1100, since the First Call primitive won't let the statechart initialize (the First Call primitive tells the statechart it has already been initialized (this isn't the first call), and the External Trigger function then tries to send an external trigger to a queue that doesn't exist).
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I really want to use this design pattern, first of all since I wrote a lot of code already with this structure, and second of all, it makes a lot of sense to me. How do I make it work? If someone could post a version of my code that functions the same, but without the error, I would appreciate that. If you don't have time for that, but would be able to outline the steps I need to take to get it to work, that would be helpful, as well.
Thanks to anyone for any assistance they can provide. If you need any other information, please let me know.
Attachments:
Statechart Sample.zip ‏431 KB

Thanks, Deborah. I tried this approach out, and it turns out you can't just wire a TRUE to the "Init?" terminal. You have to wire a TRUE for the first run of the slave statechart, and then it has to become a FALSE. If you wire a TRUE, it will constantly try to reset the statechart, which doesn't work.
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I attached a version that does this, which appears to work. Let me know if it doesn't work for someone, or if you have a better idea to implement the correction.
Thanks to everyone for the replies!
Attachments:
Master-Slave Statechart Sample.zip ‏439 KB

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Darn, I thought it was working since it didn't lock up for 2 days with debugging on, but the holiday ended. The state it locked up in today (i didn't have debugging on, but I set an output when it enters that state so that much I know) doesn't have any static reaction. Here is the entry action for that state. Most of the transitions have no action but one makes a call to a counter task so i pasted that code too. Unfortunately the code is pretty big so I can't really post the whole thing.
Message Edited by peabody124 on 01-28-2008 06:53 PM
Attachments:
elapsed timer.JPG ‏52 KB
entry.JPG ‏63 KB
transition.JPG ‏44 KB

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Runtime Errors         CALL_FUNCTION_NOT_FOUND
Exception              CX_SY_DYN_CALL_ILLEGAL_FUNC
Date and Time          25.05.2011 14:43:26
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Hi Karthik,
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Hello my friends,
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00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
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00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
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nVidia 620M at PCIBus 01.00.0
First, nvidia is disabled by bbswitch.
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# optirun -vv glxspheres
[ 505.314018] [DEBUG]Reading file: /etc/bumblebee/bumblebee.conf
[ 505.315297] [DEBUG]optirun version 3.2.1 starting...
[ 505.315938] [DEBUG]Active configuration:
[ 505.316203] [DEBUG] bumblebeed config file: /etc/bumblebee/bumblebee.conf
[ 505.316421] [DEBUG] X display: :8
[ 505.316552] [DEBUG] LD_LIBRARY_PATH:
[ 505.316674] [DEBUG] Socket path: /var/run/bumblebee.socket
[ 505.316788] [DEBUG] Accel/display bridge: auto
[ 505.316900] [DEBUG] VGL Compression: proxy
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[ 505.317126] [DEBUG] Primus LD Path: /usr/lib/primus:/usr/lib32/primus
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[ 506.597122] [INFO]Response: No - error: [XORG] (EE) Failed to load module "nouveau" (module does not exist, 0)
[ 506.597316] [ERROR]Cannot access secondary GPU - error: [XORG] (EE) Failed to load module "nouveau" (module does not exist, 0)
[ 506.597448] [DEBUG]Socket closed.
[ 506.597538] [ERROR]Aborting because fallback start is disabled.
[ 506.597654] [DEBUG]Killing all remaining processes.
Now, the nvidia is enabled.
# cat /proc/acpi/bbswitch
0000:01:00.0 ON
# modprobe nvidia
modprobe: FATAL: Module nvidia not found.
/etc/bumblebee/bumblebee.config
# Configuration file for Bumblebee. Values should **not** be put between quotes
## Server options. Any change made in this section will need a server restart
# to take effect.
[bumblebeed]
# The secondary Xorg server DISPLAY number
VirtualDisplay=:8
# Should the unused Xorg server be kept running? Set this to true if waiting
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# The name of the Bumbleblee server group name (GID name)
ServerGroup=bumblebee
# Card power state at exit. Set to false if the card shoud be ON when Bumblebee
# server exits.
TurnCardOffAtExit=false
# The default behavior of '-f' option on optirun. If set to "true", '-f' will
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NoEcoModeOverride=false
# The Driver used by Bumblebee server. If this value is not set (or empty),
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# (See also the driver-specific sections below)
Driver=
# Directory with a dummy config file to pass as a -configdir to secondary X
XorgConfDir=/etc/bumblebee/xorg.conf.d
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[optirun]
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# primus.
Bridge=auto
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VGLTransport=proxy
# List of paths which are searched for the primus libGL.so.1 when using
# the primus bridge
PrimusLibraryPath=/usr/lib/primus:/usr/lib32/primus
# Should the program run under optirun even if Bumblebee server or nvidia card
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AllowFallbackToIGC=false
# Driver-specific settings are grouped under [driver-NAME]. The sections are
# parsed if the Driver setting in [bumblebeed] is set to NAME (or if auto-
# detection resolves to NAME).
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# bbswitch - new in BB 3, recommended if available
# switcheroo - vga_switcheroo method, use at your own risk
# none - disable PM completely
# https://github.com/Bumblebee-Project/Bumblebee/wiki/Comparison-of-PM-methods
## Section with nvidia driver specific options, only parsed if Driver=nvidia
[driver-nvidia]
# Module name to load, defaults to Driver if empty or unset
KernelDriver=nvidia
PMMethod=auto
# colon-separated path to the nvidia libraries
LibraryPath=/usr/lib/nvidia:/usr/lib32/nvidia
# comma-separated path of the directory containing nvidia_drv.so and the
# default Xorg modules path
XorgModulePath=/usr/lib/nvidia/xorg/,/usr/lib/xorg/modules
XorgConfFile=/etc/bumblebee/xorg.conf.nvidia
## Section with nouveau driver specific options, only parsed if Driver=nouveau
[driver-nouveau]
KernelDriver=nouveau
PMMethod=auto
XorgConfFile=/etc/bumblebee/xorg.conf.nouveau
/etc/bumblebee/xorg.conf.nvidia
Section "ServerLayout"
Identifier "Layout0"
Option "AutoAddDevices" "false"
Option "AutoAddGPU" "false"
EndSection
Section "Device"
Identifier "DiscreteNvidia"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BusID "PCI:01:00:0"
# If the X server does not automatically detect your VGA device,
# you can manually set it here.
# To get the BusID prop, run `lspci | egrep 'VGA|3D'` and input the data
# as you see in the commented example.
# This Setting may be needed in some platforms with more than one
# nvidia card, which may confuse the proprietary driver (e.g.,
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# BusID "PCI:01:00:0"
# Setting ProbeAllGpus to false prevents the new proprietary driver
# instance spawned to try to control the integrated graphics card,
# which is already being managed outside bumblebee.
# This option doesn't hurt and it is required on platforms running
# more than one nvidia graphics card with the proprietary driver.
# (E.g. Macbook Pro pre-2010 with nVidia 9400M + 9600M GT).
# If this option is not set, the new Xorg may blacken the screen and
# render it unusable (unless you have some way to run killall Xorg).
Option "ProbeAllGpus" "false"
Option "NoLogo" "true"
Option "UseEDID" "false"
Option "UseDisplayDevice" "none"
EndSection
What is wrong? Thanks so much for help!

Just did a downgrade and it's working again, here are my versions.
linux 3.9.9-1
linux-headers 3.9.9-1
nvidia 319.32-2
nvidia-utils 319.32-1
bbswitch 0.7-4
If you have conflicts, I found it easiest to remove those (bbswitch, virtualbox in my case), downgrade linux and then install the appropriate bbs/vb packages

SQL SERVER - Error while executing SSIS package on specific environment : Connection manager - The specified module could not be found

I have deployed my SSIS packages on SQL 2008 server.
I have a .bat file which will invoke these packages and also the bat file is placed in the server where the SSIS packages are deployed.
Scenario 1:
I double clicked on the bat file to invoke the SSIS packages and ; this executed successfully
Scenario 2:
I have used the IBM Tivoli work scheduler(TWS) to invoke the bat file which in tern will invoke the ssis packges;
but when i do this i am getting the below error
Code: 0x8007007E
Source: SSIS_Master_Event_Data_Transfer Connection manager "Config DB"
Description: The specified module could not be found.
Config BD is a connection manager which will get the connection string from the config file of the SSIS package.
Please help me to resolve this issue.
Regards,
Prakash

Check you TWS jobmanrc.cmd configuration file. You may need to add a PATH environment variable in that file that includes your SQL Server file locations. When TWS jobs are executed, they may not be executing with the same
PATH variable as when you execute the SSIS outside of TWS.

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