西门子DCS教程.docVIP

Did you think of this? The following list contains key concepts worth considering when planning and implementing a PCS 7 project. The list is not exhaustive or mandatory, only a recommendation. In different projects, parts may be omitted or other sections added. 1. Clarification before project start Basic automation Measuring point list (number and type of measuring points) How many different measuring point types can it be mapped on? Master record of measuring points (properties and attributes of the measuring points) Description of processes and procedures Master functions Sequential control systems Interlocking Concept for fault handling Hardware aspects Distribution of measuring points in the plant, connection to the control system Number of binary and analog input and output signals Future expandability Conventional (master cable + sub-distribution board) Remote I/Os How many Distribution among PROFIBUS segments Fieldbus Normal Hazardous (Ex) area How many slaves Intelligent field devices HART PROFIBUS Availability of I/Os Standard Redundant Electronic spatial distribution Central Local Degree of protection, design - Installation guidelines for PCS?7 systems Grounding, shielding, fiber optics - Installation guidelines for PCS?7 systems EMC specifications - Installation guidelines for PCS?7 systems Availability requirements for automation Standard H systems Division according to subsystems Safety considerations Standard F (failsafe) systems Standard part, F part System bus Availability Structure/decoupling Control rooms, operator Central Local Number of operator terminals Audible alarm system Environmental regulations - Installation guidelines for PCS?7 systems Availability IC workstation, diagnostic station Plant type Continuous plant Plant structure (systems, subsystems, technological functions...) HID (identification) Master functions Interlocking across measuring points Higher-level computing and control functions Sequential control systems