Triconex DDE Server Release 1.0
Triconex DDE Server
Quick Guide
This guide explains how to use the Triconex DDE Server program for
communication between Triconex controllers (Tridents or Tricons) and DDE
clients in an Ethernet network.
Topics include:
“Overview” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
“Specifications for NT Workstation” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
“Installing Triconex DDE Server” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
“Uninstalling Triconex DDE Server” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
“Configuring the DDE Server Application” . . . . . . . . . . . . . . . . . . . . . . . . . 3
“Configuring Triconex Host Information” . . . . . . . . . . . . . . . . . . . . . . . . . . 4
“Configuring Server Parameters for 802.2 Protocol (Tricon Only)” . . . . . . 7
“Testing a TCP/IP Connection” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
“Configuration Requirements for DDE Network Redundancy” . . . . . . . . . . 8
“Requesting Data with a DDE Client Application” . . . . . . . . . . . . . . . . . . . 9
“Requesting Network Status” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
“Monitoring Responses from the Controller” . . . . . . . . . . . . . . . . . . . . . . . 10
“Menu Commands” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Overview
Triconex DDE Server is a Windows NT application that enables DDE-compliant
clients to request data and, if allowed, to change data in a Triconex control
program. A client can request data about input and output variables, memory
variables, and system attributes. Triconex DDE Server is based on a client/server
model in which a client requests information from a server and a server sends
information to a client.
Client applications use DDE (Dynamic Data Exchange) protocol to communicate
with a DDE Server. Any Windows application that supports DDE protocol—such
as Microsoft Excel—can use Triconex DDE Server.
Triconex DDE Server communicates with one or more Triconex controllers
through TSAA (Triconex System Access Application) protocol. To return data to
clients, the DDE Server uses DDE protocol.
The DDE Server workstation must be connected to an Ethernet port on a Triconex
controller. For Trident, the NET1 or NET2 port on the Communication Module
