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    • Wonderware OPCENUM error 0x80040153

      Note: the information below also exists as a PDF with screenshot images. Background If you install TopView OPC/SCADA on a Wonderware machine after installing the Wonderware OPC Server software, you may not be able to query to local OPC Servers ...
    • Use Gmail for TopView email notification

      The following information provides details on using Gmail with TopView for both outgoing email (Notification) and incoming email (Alarm Acknowledge and information requests). TopView supports SSL/TLS for both outgoing and incoming email (for TopView ...
    • Win10 1909 update disabled Remote Registry Service

      We seen some upgrades of Windows 10 to feature update 1909 experiencing issues. The Remote Registry Service was disabled after update. Once the service was re-enabled and started, TopView could see monitored performance counters again - this is a ...
    • TopView Engine in "Startup"

      Background When a TopView Engine starts or performs an internal restart, it enters the "Startup" operating state. Once "Startup" has completed the Engine will be in the "Running" operating state.  Startup includes the following tasks: Reading the ...
    • Why are Boolean values not alarming?

      When using the equals condition ("=") for any type of incoming value, TopView looks for exact matches. Set the alarm conditions to match the values from the data source. TopView does not make assumptions about how to interpret Boolean signals, ...