DDE Client Driver OPC Server

Kepware's 32 bit DDE Client driver works in conjunction with our OPC Server KEPServerEX, to provide data exchange between OPC Clients and legacy DDE Server applications. If you have an OPC client application that needs to access an existing DDE server, this driver is the solution. Data integrity is ensured with our extensive error handling.

Plug-in Driver Features:

• The DDE Client Driver is capable of communicating with any server that supports the standard "CF TEXT" DDE data format
• Clients may reside on remote machines and communicate with this driver via OPC or NetDDE. However, the current version of this driver cannot access data from DDE servers running on remote machines
• The driver will automatically reconnect when DDE servers are brought back on-line
• A "ReinitializeDDE" tag is provided to aid in the resolution of DDE communication failures
• This driver uses "hot links", where a DDE server passes data to the driver only when the data value has changed. This provides a significant performance advantage over the alternative request/response loop approach since each DDE transaction is relatively time consuming
• Addressing uses familiar "ApplicationName| TopicName |ItemName" method for DDE server data
• All major data types are supported

Protocol

• OPC
• DDE

Supported Devices

• Can be used with any DDE server that supports standard Microsoft DDE. - See Specific Features for more information

Vendor: Kepware Technologies

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Kepware is the world leader in communication software for automation and offers unique experience in both OPC and embedded device communications. Since 1995, Kepware has focused on the development of communication drivers to automation controllers, I/O and field devices. Kepware's unique driver architecture combined with industry and third party vendor standards ensure Kepware's ability to deliver state of the art and ideal fit solutions for industry leading automation suppliers. Today, with over 100 communication protocols, and through the efforts of our direct sales, distribution and embedded partners, Kepware is the leading provider of communications with annual shipments exceeding 100,000 units. Our mission is to become the de facto standard for third party connectivity. Kepware genuine OPC software products are known worldwide for quality, reliability and ease of use. Kepware's responsiveness to customer needs and strong partnerships with other leading automation suppliers ensure that your next application will be a success. Ask around and you'll hear why automation professionals everywhere consider Kepware Technologies "Automation's Best Friend".