Restricted A071-0CG-2.02-2
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The ANSI X3.28/SRIO DPA software is installed in GE Energy Services WESDAC equipment
to provide an interface to master stations using the ANSI X3.28 communication protocol.
Product Perspective
The ANSI X3.28/SRIO DPA software is custom software that will be installed in the GE Energy
Services RTU to provide a communication link to master stations using the ANSI X3.28
communication protocol. The ANSI X3.28/SRIO DPA does not follow typical GE Energy
Services DPA conventions, and interfaces directly to the SPABUS DCA.
The SPABUS DCA provides the only interface between the ANSI X3.2/SRIO DPA and WIN,
and must be present in the system in order to use the ANSI X3.28/SRIO DPA. The DPA does not
have access to the system WESDAC data tables, but only to data owned by the SPABUS DCA.
The ANSI X3.28/SRIO DPA configuration tables reference the SPABUS configuration item
table rather than the WESDAC tables. Figure 1 represents a complete system overview of how
the DPA interfaces with the SPABUS DCA in a typical GE Energy Services RTU.