The basis of the SIMATIC PCS 7 control system is divided into three functional components as shown in Figure 1: Operator System (OS) Automation System (AS) Engineering System (ES) Figure 2: Core Functional Components of the Siemens SIMATIC PCS 7 Control System Figure 2: Core Functional Components of the Siemens SIMATIC PCS 7 Control System The Operator System (OS) permits the secure interaction of the operator with the process under control of PCS 7. Operators can monitor the manufacturing process using various visualization techniques to monitor, analyze and manipulate data as necessary. The Operator System architecture is highly flexible, but always consists of a client and server function, which may be implemented on the same or separate physical platforms. The Automation System (AS) is the name given to the class of programmable logic controllers (PLC) used with PCS 7. This includes both the Microbox solution based on a software controller running on a standard computer, and the S7-300 and S7-400 lines of hardware controllers. The Engineering System (ES) consists of software that is responsible for configuring the various PCS 7 system components. The ES is further broken down into the engineering software required to configure either the Operator System (OS) or Automation System (AS), since the OS requires different engineering software for configuration than the AS. The ES allows for configuration and management of the following PCS components and functions: Control system hardware including I/O and field devices Communication networks Automation functionality for continuous and batch processes (Application System engineering via STEP 7 software) HMI functionality (Operator System engineering via WinCC software) Safety applications (Safety Integrated for Process Automation) Diagnostics and asset management functionality Batch processes, automated with SIMATIC BATCH Material transport, controlled by SIMATIC Route Control Cooperation with host CAD/CAE planning tools (import and export of process tags and example solutions) Since the ES functions are so broad, and cover such a wide range of tasks, Figure 3 below helps clarify the individual components of the ES. Figure 2: Components of the SIMATIC PCS 7 Engineering System
Posted on: Mon, 25 Aug 2014 16:06:37 +0000
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