Using OpcCmd Utility as OPC UA PubSub Sniffer
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This article assumes that you have a basic knowledge of the OPC UA PubSub Sniffing concepts; please read the corresponding article first.
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Contents
Accessing the OPC UA PubSub Sniffer service
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uaPubSubSniffer subscribeCapture command
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Limiting the capture types
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Selecting distinct headers
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Capturing message data
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Typical usage scenarios
Show all communication
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subscribeCapture opc.udp://239.0.0.1:4840
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subscribeCapture mqtt://opcua-pubsub.demo-this.com #
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Discover who communicates what
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subscribeCapture opc.udp://239.0.0.1:4840 --CaptureTypes AllPubSubMessages --DistinctHeadersOnly !wait Infinite
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subscribeCapture mqtt://opcua-pubsub.demo-this.com # --CaptureTypes AllPubSubMessages --DistinctHeadersOnly !wait Infinite
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Capture and show message data
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subscribeCapture opc.udp://239.0.0.1:4840 --CaptureTypes TransportMessage --ShowCaptureData
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subscribeCapture mqtt://opcua-pubsub.demo-this.com # --CaptureTypes TransportMessage --ShowCaptureData
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