system or section， operator control

operator control system

Integrated Control System control Hierarchy

system or section

admissible unbounded control operator

assistant control operator

available transfer capability(ATC) independent system operator(ISO)

basic operator control

basic operator control command

basic operator control SSP

basic operator control station

basic primary operator control station

basic secondary operator control station

bitwise exclusive OR operator

bitwise inclusive OR operator

chief system operator

control operator

Delta operator system

electronic monitoring system operator panel