User`s guide

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OPC Client Sample Program

Step 2. The Browse Items button is now enabled, and the NuDAQ

PCI card OPC server icon appears on the task bar.

Step 3. Click the Browse Items button to query

IOPCBrowseServerAddressSpace interface and acquire all

items defined in the NuDAQ PCI card OPC server. All items

are listed in the Server Item List. There are two columns in the

list. The first column is the name of each item, which is

presented in device.item format. The second column is the

access right of each item. “R” represents readable. “W”

represents writable. “R/W” represents both readable and

writable. Now the Add Group button should be enabled.