Queued Message Handler (QMH) and Asynchronous Message Communication (AMC) Reference Library

[tstand]

Thanks Christian, and also thaanks to DaveNShelby for his suggestion.

tstand

[wojciech.warmuz]

Hello

I wanted to try AMC and trying to install it via VIMP, it adds 2 more packages to install NI String Tools Library 2.0.0.5 and NI Keyed Array Library v2.0.0.11 but they failing to install, Labview 2014 32bit, Windows 7 64bit

error message:

Main Package Name: NI String Tools Library v2.0.0.5
Package Name with Error: NI String Tools Library v2.0.0.5
Error Message: VIPM could not install the package ni_lib_string-2.0.0.5 .
Error Code: 8
Error Source: Open/Create/Replace File in ZLIB Read Compressed File__ogtk.vi->ZLIB Get File__ogtk.vi->ZLIB Extract File__ogtk.vi->EED56FA0C4F55E77EEBE36176CE1C33B->7773F18C47B7FC71CA4BAECE7A2EA962->OGPM Class.lvlib:BF046E12330E3D901A9FA815497F26CC->OGPM Class.lvlib:968239FABAFA58D305528EF3DD4CE1AD->1ECB61166404ABCF592B9976749FE772->VIPM Main Window.vi<APPEND>
C:\ProgramData\JKI\VIPM\cache\ni_lib_string-2.0.0.5.spec
===============

the same with both libraries

[Christian_L]

Wojciech,

Please try running VIPM with Admin privileges in Windows. Most likely VIPM is not able to create some of the temprorary folder/files necessary during unpacking and installation.

[wojciech.warmuz]

Thanks you very much

it helped

*cheers

[Christian_L]

The source code for the Asynchronous Messaging Communication library has been migrated to github for source code control and issue tracking.

Source: https://github.com/NISystemsEngineering/AsynchronousMessageCommunication

Issues: https://github.com/NISystemsEngineering/AsynchronousMessageCommunication/issues

Github will contain the latest version of the source code as it is being updated. We will continue to build and publish released versions of AMC in the Reference Design Portal and the LV Tools Network VIPM repository.

Bug reports and feature requests can be submitted in this thread or directly in the Github issues list.

[joernheit]

Just a question for the understanding of code. In the 'AMC Multiple Local Processes.lvproj' project, boolean process data is transfered beetween two local processes. This works vice versa between 'process1' and 'process2'. I realized that the 'Send Message to Local Process.vi' obtains the queueu to the 'other process', and 'Send Message to Current Process.vi' than sends it to the queue obtained before, but than the queue is released.

How can the queueu still work on the other process, if it is released here. Do I have a general missunderstanding of the queue functionality ?.

Best regards,
Jörn

[joernheit]

Indeed a missunderstanding of queue behaviour. After further reading I found the answer here.

[Ben_Manthey]

I've been trying to get the AMC Ping Dispatcher function to work. I can't get a response from my remote CRIO system. I know that the dispatcher is running on my remote system is working becasue I can send commands to it.

I belive that both Ping Dispatcher and Send Network Message both use UDP which leads me to think that it's not a firewall or routing issue.

I've attached a test program that demonstrates the problem. It can send two commands which both work. The Ping command however doesn't work.

Any thougts as to what I'm doing wrong?

Thanks,

—Ben

[Knoxberry]

Hey Ben,

I've run into this problem recently too. I don't think you're doing anything wrong, I think it's an issue with the dispatcher. Let me take a look at it. I'll post back when I have an update. In the meantime, you could use STM if you need a workaround. 

Cheers,

[Ben_Manthey]

Thanks,

     Apparently it's a known issue.

https://github.com/NISystemsEngineering/AsynchronousMessageCommunication/issues/6

I'm just using the regular old DOS Ping to detect if the RT system is there. It's not ideal since it doesn't show that the application is running. It's only really aproblem in devolpment though.

—Ben