800xA OPC DA connection to Siemens T3000 not working
In one of my project 800xA OPC DA established with siemens T3000 system through firewall and Matricon OPC tunneller. One day opc data updation in 800xA stopped working. On investigation we found that values are coming upto Matricon OPC trunneller. On further investigation found that connectivity sever time sync was not working. We set the time in connectivity server manually. And started uploader, now values are coming. Can anyone tell me how time sync and OPC DA related in 800xA ? What should I do to prevent the same problem in future. ?
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