14.2.1         Advantech WebAccess/SCADA SCADA Node as DDE Server

Advantech WebAccess/SCADA SCADA Node acts as a DDE Server.   3^rd Part DDE client applications typically access a DDE Server using the following convention:

=application|topic!item

= bwddexe|topic!tagname

Advantech WebAccess/SCADA Server's application name: bwddexe

Advantech WebAccess/SCADA Server's topic: topic

Advantech WebAccess/SCADA Server's item: tagname

A pipe character (|) separates the application name, "bwddexe", from the topic. The topic is always topic in Advantech WebAccess/SCADA. An exclamation point (!) separates the topic name from the tagname.

Tagname is the Tag you want, for example TIC101, ZT-106, speed, etc.

The DDE Client application must have access to the Advantech WebAccess/SCADA SCADA node.  The DDE Client application must be running on the SCADA Node PC or have a Network DDE connection (NetDDE) to the SCADA node.

Most 3^rd Party DDE Clients will make a request to start the Advantech WebAccess/SCADA DDE server when they start.