2219 Conclusion And Further Study

Automatic controls are useful for basic regulation, and quality control of processes and environments. They can also be leveraged for energy savings through optimization. Properly applied, these systems are reliable and cost effective.

Let us now return to the Chapter Intent, so see if the objectives were met. The stated purpose of this chapter was to focus on the application of Automatic Controls as a tool to achieve energy savings. The reader should review the titles of each section, reflect on the key topics they have taken away, and decide if the stated objective was met. If you have gained insight into how automatic controls can help you achieve your energy goals, have increased your comfort level with the subject matter, know important questions to ask the vendors, and are eager to put these systems to work for you, then this chapter has been worthwhile. If you do not feel the objective was met for you, consider re-reading the material, seeking out supplemental material, or contacting the author for further discussion. Very often a second text on the same subject will amplify the effect of the first text, by reinforcing concepts with different examples and descriptions.

This chapter was necessarily made brief, and does not pretend to be a complete treatment of the subject. The following advanced topics were not addressed, and are listed for the interested reader to pursue through additional study.

Addressable I/O devices, network communications, and equipment interfacing technologies. Boolean Logic. Cascade Control.

Computerized Maintenance Management Systems (CMMS).

Control Loop Interaction.

Ergonomic Considerations. Trends, logs, reports, alarms, graphics.

Failure Modes, Mitigation, and Fault Tolerance.

Feed Forward Control.

Fuzzy Logic.

IT Security.

Ladder Logic.

Loop Tuning. Step changes, dead time, stability, response time.

Measurement and Verification.

Open Protocols, XML, Gateways, and Translators for DDC networking.

SAMA logic diagrams, multi-element industrial control methods.

SCADA systems.

Self-Powered Controls.

Wireless Controls.

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