09-10-2013 10:57 AM
Hi,
I use siemens s7 1200 plc with labview 2011 and Opc server 2012. I can connect to opc server and create tags. Moreover, I am able to see data changes with quick client.
The problem when I try to create I/O server and bound with shared variable, I pass it to VI. All tags are zero, I believe there is no communication to servers. Although there is no error message. Any suggestions?
Please see the posts
09-11-2013 04:51 AM - edited 09-11-2013 04:52 AM
Can you show FREQ and OPC1 configuration?
03-21-2014 10:13 AM
I'm late to the party, but if you need to troubleshoot OPC communications, you should start with opening the OPC Quick Client. Check there to see if you have good connectivity - if it is broken there, you will never receive data to LabVIEW.
10-10-2014 05:09 AM
Hello sir,
We are too handling a project and stuck with the same problem. The OPC quick client shows the updated value but while using the opc variable in the labview it doesn't shows any changes , So please help as with some good solution.
@AEI_JR wrote:
I'm late to the party, but if you need to troubleshoot OPC communications, you should start with opening the OPC Quick Client. Check there to see if you have good connectivity - if it is broken there, you will never receive data to LabVIEW.
10-10-2014 07:58 AM
10-10-2014 10:36 AM
Thank you very much and I will check to that . In case of any other mistakes , i will contact you.