A complete integrated safety solution for the hott

A complete integrated safety solution for process industry

simatic PCS7 is a modern process control system based on fully integrated automation, which integrates all the functions of continuity control, logic, batch processing and fault safety required by the process industry. According to arc's investigation report, SIMATIC PCS 7 meets its CPAs structural vision and the single automation environment of isa-88 and ISA-95 standards. Its innovative technology of seamless integrated safety instrumented system (SIS) makes it a model of a new generation of process control system. Its reliable safety design conforms to IEC 61508 (SIL 3) and ie, so that the final recycled material has high purity and performance, C 61511 and other international safety standards, and has been widely used in emergency shutdown system (ESD), fire and toxic and harmful gas monitoring and protection system (f&g) Combustion furnace management system (BMS) and key equipment control

simatic PCS7's safety integrated design provides a flexible solution for future oriented factories. Based on the internal profisafe communication mechanism, the standard functions and fail safe functions can be integrated into one controller, or they can be placed in different controllers; Distributed i/o modules, including standard modules and fail safe modules, can be integrated in one station, and can also be installed and expanded separately (as shown in Figure 1). SIS function is realized by SIMATIC SFH

integrating the fail safe function into the SIMATIC PCS 7 process control system has the following advantages:

· sharing an engineering configuration system to complete standard and safety applications

· integrating the safety control strategy in the safety controller (as) of SIMATIC PCS 7

· integrating the user-friendly interface with process values in the operator station (OS) of SIMATIC PCS 7

· fault information with time tags, Automatic integration into the process visual screen

· there is no need to repeat between the traditional DCS and sis. The following describes the application precautions and maintenance details of the fatigue testing machine: data processing free from heavy blows in the application process and handling process

· saving cost, space and installation costs

Figure 1 PCS7 System Architecture Based on profisafe

no safety weaknesses are allowed in the process industry. In order to protect personnel, equipment and environment and minimize risks, reliable process industry safety technology, safety management and qualified personnel are also necessary conditions for the safety lifecycle, which will ensure the safety requirements of the whole process from specification to implementation (as shown in Figure 2). The safety matrix in the SIS solution of SIMATIC PCS7 (as shown in Figure 3) provides a safety life cycle tool from installation and commissioning to operation and maintenance, as well as the modification process after putting into operation. The safety matrix is briefly described as follows:

· configure the safety (logic) function in a known cause/result way, for example, configure

based on process events and process reactions. Automatically generate the relevant step? Program

· through simple and transparent configuration, the fault source is minimized

· after the safety configuration review, the document data is automatically generated

· without special programming knowledge, the configuration time is shortened

· on the operator station of SIMATIC PCS 7, the visual and user-friendly safety matrix interface is automatically generated

· the project version of the automatic management program

· convenient tracking and modification

· direct modification of the safety function, It has easy and convenient test mode, bypass, reset, skip and other functions

necessary conditions of safety life cycle in Figure 2

safety matrix in Figure 3

SIMATIC SFH can be seamlessly integrated into SIMATIC PCS7, and can also be used as an independent SIS system, and can communicate with the third-party process control system through modbus, PROFIBUS DP, Ethernet (tcp/ip) and other means. The redundancy and fault tolerance of SIMATIC SFH can ensure the least unplanned shutdown when the system is running, so as to minimize the related costs. The built-in full redundancy design and self diagnosis function of fault safety module can quickly and effectively diagnose internal and external faults. Its innovative and flexible module redundancy (fMR) mode can configure single module, double module and triple module for field instruments and actuators according to specific requirements, and complete the safety instrument (SIF) function in safety specification IEC61511 (as shown in Figure 4). SIMATIC SF can only be put into use after passing strict tests. H provides multi-point fault-tolerant function while ensuring safety, which can meet the application requirements of users to the greatest extent. The internal open profisafe communication is UL certified as A-level non combustible building fireproof material protocol, which lays the foundation for the development of digitalization and Fieldbus of SIS system

Figure 4 module redundancy (fMR) configuration mode

since Siemens introduced the innovative SIMATIC SFH and SIMATIC integrated safety technology in 1999, it has been widely used in various industries around the world, such as petrochemical, chemical, pharmaceutical, electric power, metallurgy, mining, light industry, etc. (end)