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Former Member
Nov 24, 2011 at 02:36 AM

Strange Problems when connect to HMI though OPC with PCo

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Hello

We install PCO on many workstation in our plant ,most are WinCC , one is Hollysys MACSV , most of PCO work fine with WinCC, but we found PCO could not get Tag Data from WinCC on 2 of WinCC workstations ,error message is "Tag not found " , we double check the tag name and be sure the name is correct ,and when we try to browse the tag using Alias of PCO , PCo will return a message box with "the browse request returned with error" ,we could not browse any tag/group in alias configuration .

if we use other OPC Client (http://downloadnew.org/company/s-chepurin/) , everything works fine ,we could add a Tag and get the correct value , that 's really confusing , is any config for PCO or WinCC for our scenario? and we also found same problem in MACSV DCS workstation , so we thought that maybe something with PCO self.

any comments is appreciated .

version PCO : 2.1.6 MII 12.2 , WinCC 6.1 with SQL Server on XP SP2

Larry Zhu

Edited by: larryzhu on Nov 24, 2011 3:59 AM