Instrument SIS System of Zhongjin Petrochemical Tank Farm

​According to the Interim Provisions on the Supervision and Management of Major Hazardous Sources of Hazardous Chemicals (No. 40) issued by the State Administration of Work Safety, "Level 1 or Level 2 major hazardous sources involving toxic gases, liquefied gases, and highly toxic liquids shall be equipped with independent Safety Instrumented Systems (SIS)", which is a requirement of the regulations issued by the State Administration of Work Safety, this project is hereby applied for. This project involves 1336 interlocking points such as AI (analog input), DI (switch input), DO (switch output), etc.