RCP CL Comm Basic Stream Example

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Table of Contents >Quanser Rapid Control Prototyping Toolkit >Examples >Communications >

This example consists of two communication VIs: a server and a client. It demonstrates how to use the Basic Communication VIs from the RCP Toolkit to establish a connection between two VI models. For a detailed description of these VIs and how they operate, please refer to the RCP Basic Stream Client and Basic Stream Server help pages.

System Requirements

Please refer to the Rapid Control Prototyping (RCP) Toolkit System Requirements to run this example. This example does not require any other hardware.

Configuring the Example

Open the RCP CL Comm Basic Stream Client Example.vi and the RCP CL Comm Basic Stream Server Example.vi under My Computer. To set up the example, select Show Block Diagram from the Window menu or press Ctrl+E while the Front Panel is the active window for both the RCP CL Comm Basic Stream Client Example.vi and RCP CL Comm Basic Stream Server Example.vi. Double click on the CL Comm Basic Stream Client and CL Comm Basic Stream Server VI and ensure that the URI for the server and client are the same, since both VIs run on the same machine. An example of a valid URI is tcpip://localhost:18000. The RCP URIs are described on the Universal Resource Identifiers page. Close the Block Diagram window after all changes to the VI have been made.

Running the Example

Click on the Run button of each VI or select Run from the Operator menu to start each VI. A straight line with an amplitude of 0 will appear in the Data Sent and Data Received graphs. Notice that the graph trace is now moving in real time. In other words, the trace passes the 5-second mark after 5 seconds have passed.

On each VI Front Panel, click on the orange circle on the dial labeled Signal to Send on the server or client and move the dial. If the client dial is rotated the Data Sent graph displays the value of dial and the server Data Received graph will display the value that is sent from the client and received by the server. If the Data Received graph doesn't display anything when the dial is rotated, verify the URI of the server and the client VIs.

Click on the Front Panel Stop button to stop the VI.

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