Rockwell Automation FactoryTalk Transaction Manager User Guide - Manual (Page 64)

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FactoryTalk Transaction Manager User Guide
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FactoryTalk Live Data
The FactoryTalk Live Data control connector service is used to interface
with data items provided by the FactoryTalk Live Data servers. The
FactoryTalk Directory provides a common name space for factory
automation products from Rockwell Software, allowing all applications to
use the same naming convention and giving you the capability to browse
available data points. FactoryTalk Live Data provides services that allow the
efficient transfer of high-speed manufacturing data between processes in the
system.
In a configuration that uses online edits, the Transaction Control Manager
service performs the duties of the FactoryTalk Transaction Manager service
and inherits the functionality of the FactoryTalk Live Data control
connector. For more information about performing online edits, see Chapter
8, Understanding Online Edits (page 111).
DDE
The DDE control connector service can be used for legacy connections to
DDE servers or to provide functionality that is not supported by the OPC or
FactoryTalk Live Data specification.
The DDE server must be running on the same computer as the associated control
connector. FactoryTalk Transaction Manager does not support NetDDE.
The FactoryTalk Transaction Manager user interface cannot query remote
DDE servers to retrieve configured DDE topic information. When the DDE
control connector is located on a remote FactoryTalk Transaction Manager
computer, manually enter DDE topic names on the FactoryTalk Transaction
Manager DDE Data Point Configuration dialog box. Perform the following
steps.
1. Define a configuration on the local computer that contains the
FactoryTalk Transaction Manager service.