 Using the Server Monitor
Server Statistics
This panel shows the current server statistics. This is useful for viewing the server status in real-time.
Server Statistics View
The following statistics are available:
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Server State: Current server state(running, stopped).
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Server Time: Current server time (important for timestamps).
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Clients Connected: Number of clients connected to the server.
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Server Scan Status: Current state of server data acquisition core (active, inactive).
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Active Devices: Number of devices under real-time monitoring.
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Active Items: Number of device items under real-time monitoring.
If any computer indicates scan overlap, it means that your current configuration is not optimized for scanning the configured computers. Scan overlaps happen when the server time becomes insufficient to maintain the configured computers refresh rate. The main cause for this problem is a high response time from some Windows computers, causing the server to wait too much time for a response. Here are some tips for improving performance:
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Disable the scan of unused computers. Make sure that the server is scanning only computers which will be used by your OPC clients.
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Remove all unused items that are published. Make sure that you are publishing only items that will be used by your OPC clients.
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On congested networks, the information may suffer high delays to reach the server. Make sure that the XR PerfMon Server is connected to the monitored computers through good links.
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