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I saw the previous post (Jan '01) about speed perfomance problems with Wonderware/Ingear OPC/Control Logix. But there were no answers or possible solutions. I am having an identical problem. I am running WW Intouch 7.1, OPC
Link 7.5.1.10, Ingear AB OPC Server(For WW) 2.35.30.6, Control Logix 5550 with 1756-ENET/A. Network connections are routed through a switch. I currently have 2700 tags. Update speeds to the WW are extremely slow...30 sec. While
troubleshooting this problem I encountered something strange that may be the source of my problems. While the PLC is in program mode the OPC Server reads 60-100 packets per seconds, which updates my WW in about 1-2 seconds (fine).
However when the PLC is in Run mode the OPC Server reads 2-4 packets per second, which updates the WW extremely slow. Ingear has assured me that it reads the PLC tags the same if the PLC is in Run or Program. This leads me to
believe that the source of the slow update times resides in the PLC to 1756-Ethernet Card communication. Is there any way to fix this? The RPI for the Ethernet card is not configurable.
Link 7.5.1.10, Ingear AB OPC Server(For WW) 2.35.30.6, Control Logix 5550 with 1756-ENET/A. Network connections are routed through a switch. I currently have 2700 tags. Update speeds to the WW are extremely slow...30 sec. While
troubleshooting this problem I encountered something strange that may be the source of my problems. While the PLC is in program mode the OPC Server reads 60-100 packets per seconds, which updates my WW in about 1-2 seconds (fine).
However when the PLC is in Run mode the OPC Server reads 2-4 packets per second, which updates the WW extremely slow. Ingear has assured me that it reads the PLC tags the same if the PLC is in Run or Program. This leads me to
believe that the source of the slow update times resides in the PLC to 1756-Ethernet Card communication. Is there any way to fix this? The RPI for the Ethernet card is not configurable.