Operating Instructions

Siemens Building Technologies, Inc. 1-1
1
Introduction
The Database Dynamos provides communication between Fully Integrated Control System
(FIX) automation software and System 600 APOGEE networks. The Database Dynamos
operate with 32-bit FIX software v6.15. The Database Dynamos is not included with FIX and
must be purchased separately from Siemens Building Technologies, Inc.
Chapter 1 discusses the following topics:
• Relationship between FIX and System 600 APOGEE
• System Components
Relationship between FIX and System 600 APOGEE
The FIX workstation is a node on the System 600 APOGEE Building Level Network. The
System 600 APOGEE point names, entered as tags in the FIX database, define the links
between the two systems.
Once all the point “links” are established, the FIX workstation receives only the data from the
System 600 APOGEE points that have been reported to have changed by more than their
respective significant Changes of Value (COVs). Significant COVs are defined within each
point definition in the System 600 APOGEE database.
The most critical factor contributing to the efficiency of the data exchange between the two
systems is the amount of COV traffic on the System 600 APOGEE network. Proper system
management by the user can contribute significantly to increased efficiency in
communications performance. You may want to consider the following suggestions when
designing a FIX database with a large number of points:
• COV values for the System 600 APOGEE points should be practical; for example, the
maximum allowed by the control applications.
• In order to limit requests for dynamic points in the System 600 APOGEE, avoid
requesting the redundant data associated with point values that may be derived from
multiple points. For example, Cubic Feet per Minute (CFM) values for the air volume
are typically determined from air velocity sensor readings. If the COV traffic efficiency
is important, the data for only one of the points should be requested by the Database
Dynamos.