OPC Server (Matrikon) and LabVIEW2009 (Client)

Hello,
In one of application, I am going to use OPC Server may be from Matrikon etc and LabVIEW 2009 would be a client.
So could anybody help me to start this with respective to following?
   1) Which software/Modules else required?
   2) How to get Server connection In Application for data exchange ?
   3) Any startup code?
   4) Any tutorial (Other than NI)?
Thanks in Advance With RegardsHemant

Hello
I am to communicate with LabVIEW using the OPC Server's and OPC server´s Matrikon, I have all my varibles in Labview OPC Client, but to run my program my VI. I have an error someone can help me.
Attachments:
eror1.doc ‏73 KB

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Currently I am trying to access a VI with a Shared Variable from a remote computer using an OPC Client. I haven´t succeed on this becasue I cannot find the OPC Server on the Host Computer.
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Remote Computer: The same as above.
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Signed Extensions:
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Name: Certificate Comment
Comment: "OpenSSL Generated Certificate"
Name: Certificate Subject Key ID
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<snip>
Name: Certificate Authority Key Identifier
Key ID:
<snip>
Signature Algorithm: PKCS #1 SHA-1 With RSA Encryption
Signature:
<snip>
Fingerprint (MD5):
<snip>
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SSL Flags:
Valid CA
Trusted CA
Trusted Client CA
Email Flags:
Object Signing Flags:
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Ok, I know what's going on now - I needed something to do on Friday afternoon anyhow!
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<pre>
* Closes the stream.
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public void close() throws IOException {
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G

LV OPC client cannot get value from remote Matrikon OPC server

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It seems the link is up, but cannot get data. As the attached screen, the msg is
CoCreateInstanceEx: CLSID=F8582CF2-88FB-11D0-0C0F010435, InstanceType=CLSCTX_ALL, ServerName=\\172.16.5.38, CMQ=1 (FAILed, HRESULT=0x80070005 Access is denied.
While using the MatrikonOPCexplorer can link to remote server and refresh value automatically. But also got error when start up as the attached.
Any suggestion, thanks.
Attachments:
ss.png ‏43 KB
ss2.png ‏214 KB

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http://zone.ni.com/reference/en-XX/help/371361E-01/lvconcepts/opc_conn_from_tpclients/

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http://zone.ni.com/devzone/cda/tut/p/id/4679#toc3
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Mensaje editado por Coamín

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An alternative that you might want to consider would be to use DDE - this will all depend on the capabilities of the software you are working with. DDE capability is available in LabVIEW without DSC and will allow you to pass information between a DDE client/server. OPC has its origins with DDE so if this other piece of software that you refer to is a SCADA-type package, you may have some success here.
Jeremy

Matrikon OPC UCS don't open opc server

I instal plag-in Matrikon OPC Archestra UCS. It's integrated to historian server and good work.
But in Matrikon OPC explorer I can not open its opc server. It happens error "Could not find ProgID 'PSTCFGMatrikonOPC.ArchestrA.UCS.l'!"
Reinstall of programme doesn't help.
Please help me.

Hi Gvenihvivar,
I am sorry that you are expereining an issue with your UCS. Please contact me directly by email and I will put an engieer from the support team right away to help you with this. Here is my email address: [email protected]
Cheers,
Wassim

LabVIEW DSC 2011 / OPC Client IO Server / Can I write to the OPC Server using OPC Groups?

Hi
I am using LabVIEW DSC module as a OPC client. My Shared Variables are binded to automation system OPC Server via "OPC Client IO Server".
On the OPC Server side it seems that the every write commands comes like one item at time, not like grouped.
Now I have tested this with the NI OPC Server as server and KepServer and LabVIEW DSC IO Server as OPC Clients.
When I use the NI OPC Server : OPC Diagnostics there are different events messages when the update request comes from KepServer or LabVIEW DSC.
There are log files on attachements for both write events.
Attachments:
Data from the KepServer.txt ‏6 KB
Data from the LabVIEW DSC OPC Client.txt ‏18 KB

Hello Pentsi,
I have received confirmation (from the PSE in the US) that DSC doesn't support group writes
There however work-arounds that might provide a solution:
- The first solution I had in mind was like this. Update the 50 OPC items as fast as possible.
Then use a 51st item as synchronization OPC item to check/indicate if new data has arrived/has been set/is available.
So LabVIEW sets 50 OPC values as fast as possible. The 51st value becomes goes from false to true when the first 50 values are written.
When this (51st) value is true on the OPC server you can read out the first 50 values (from the non-LabVIEW side). When you've read out these values, then you can set the 51st value back to false (from the non-LabVIEW side).
In the meanwhile at the LabVIEW side you wait until the 51st value goes back from true to false.
When it becomes false, then you write again those 50 values and afterwards set the 51st synchronization value from false to true.
And this keeps on going...
Note: Keep in mind that you only have to monitor one event at the side of the Automation System OPC Server in this case (the 51st) and based on an event occuring over there you can just do a group read of the 50 others. Also keep in mind that the maximum rate (6500 updates per second) from inside LabVIEW with the DSC Module OPC client I/O server was also mentioned in this document (http://digital.ni.com/public.nsf/allkb/63C043359F1E12538625726E005BCD0C?OpenDocument).
Could this be a possible solution for your problem?
If you're using one of the OPC servers in this list (http://zone.ni.com/devzone/cda/tut/p/id/6417#toc19), then you can also use NI OPC Servers to update tags instead, which supports a faster update rate.
Kind Regards,
Thierry C - Applications Engineering Specialist Northern European Region - National Instruments
CLD, CTA
If someone helped you, let them know. Mark as solved and/or give a kudo.

Can i use same Server for server side and client??

Hi,
i m developing webservices in java and using two different server for server side and client.
e.g. i m using one tomcat server on a machine to run webservice and again using one more tomcat server on client side at different machine.
and hence it need two tomcat server.
But i want only one server to run webservice and client.
So please help me out...
Thanks

Hi,
It is always recommended to maintain different servers
REgards,
Ravi.

OPC Server (Matrikon) and LabVIEW2009 (Client)

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