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fDesc[0] = "DeviceXPlorer supports five types of protocol (OPC, DDE, FastDDE, Net DDE, and SuiteLink) for communication with upper-tier applications.<br /> The role of OPC is to wrap a variety of field equipment in the manufacturing premise where equipments exist by the united specifications of &quot;OPC&quot;.<br /> The OPC Interface includes OPC-DA (OPC Data Access) for real time communication, OPC-HDA (OPC Historical Data Access) for logging data, and OPC-AE (OPC Alarm and Event) for management of warning and event.";

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