Interposing Relay is the auxiliary relay which is used to isolate the two different systems / devices. This could be because they have different 0V references, different voltages, AC vs. DC. Interposing
The Process Control system may provide steady state or change of state (start-up, shutdown, batch) control functions. The latter may be implemented by automatic sequences or procedurally under manual control.
The purpose of alarm management system is to alert the operator to relevant abnormal operating situations. They include situations that have a necessary or possible operator response to ensure: Personnel
An instrumentation control system is an electrical, electronic, or programmable electronic system (E/E/PES) which may perform some or all of the following functions: Monitoring, recording and logging of plant status
Protective instruments and alarms in industrial plants are provided with adjustable setpoints where specific actions are either automatically initiated, prohibited, or alarmed. Setpoints and Alarms For example, pressure sensors typically