A Control Logic Diagram defines how a reactive system responds to events or conditional changes by using a method of logic diagramming of binary interlock and sequencing systems for the start-up, operation, alarm, and shutdown of equipment in the oil and gas industries. The Control Logic Diagram provides easy to read graphic representation of the operation of individual system equipment controls using basic digital logic symbols in which symbols functionally relate manual and process input action to the process control and operator display output actions. The Control Logic Diagram is a deliverable document of the Detailed Design and Engineering developed by a CSI (Control Systems and Instrumentaion) discipline.
Related Definitions in the Project: The CSI Engineering; Detailed Design and Engineering Deliverable
