What is the difference between ESD and ITCC? ? !

Compressor/Turbine Integrated Control System (ITCC) ESD – Emergency Shutdown System. The ESD emergency shutdown system operates in accordance with the principle of safety independence; it is separate from the DCS distributed control system, and its safety level is higher than that of the DCS. Under normal conditions, the ESD system remains in a static state and requires no human intervention. As a safety protection system, it operates above the production process control to monitor the safety of the devices in real time. Only in the event of an emergency in the production equipment is it not necessary to go through the DCS system; instead, the ESD directly sends out protection interlock signals to safeguard the on-site equipment and prevent the spread of danger from causing significant losses. According to available data, people’s judgment and actions in dangerous situations are often delayed and unreliable; when operators are faced with a life-threatening situation, they must react within 60 seconds, and the probability of making a wrong decision is as high as 99.9%. Therefore, it is highly necessary to install safety interlocks that are independent of the control system; this is an important principle for ensuring safe production. It moves when it should move and stays still when it shouldn’t – this is a notable feature of the ESD system.

Thank you to the two fellow travelers upstairs for their answers