產品內容介紹
Schumacher 1442-0218D放大器
修改記錄和變更管理
應創建修改記錄，以提供每個請求或需要更改。變更管理程序必須考慮在授權變更之前，每項此類變更的影響。這個變更的實施必須重復安全生命周期階段被改變了。結果變化的測試必須包括非回歸測試以及變化本身的測試。所有測試結果必須記錄。
退役必須指定系統退役的程序。這程序必須包括安全退役的要求系統和材料的安全移除或返還（如適用）。與調試一樣，可能會在分階段進行。退役程序必須確保在保持功能安全的同時，開發相應的存在危險。同樣，控制的物理環境當設備需要運行時，必須對其進行維護。
退役程序必須解決以下事項：
?清除危險的順序。
?允許消除安全之間相互作用的方法功能，同時保持剩余可能的功能安全危險和未啟動安全響應。這必須包括系統之間的交互。
?返回模塊和材料的定義退役后道德處置的羅克韋爾自動化。
變化歷史本附錄包含每個修訂版的新信息或更新信息本出版物。這些列表僅包含實質性更新旨在反映所有變化。
翻譯版本并不總是適用于本手冊中使用了以下術語和縮寫。對于此處未列出的術語定義，請參閱Allen Bradley Industrial自動化術語表，出版物AG-7.1。
A.AADvance Workbench軟件一種設計、配置和維護軟件環境，可實現將多控制器安全策略設計為單個項目，然后針對每個控制器的策略部分。
AADvance Trusted SIS工作站軟件用于構建用于Trusted?的過程控制項目的軟件套件8000系列控制器或AADvance?9000系列控制器。
精度測量值與標準或真實值的符合程度。另請參見“分辨率”。可實現的安全狀態可實現的一種安全狀態。有時，無法實現安全狀態。例如不可恢復的故障，例如帶有短路的表決元件開關沒有辦法繞過短路的影響。
Modification Records and Change Management
Modification records shall be created to give traceability of each requested or required change. The change management procedure must consider the impact of each such change before authorizing the change. The implementation of the change must repeat the safety lifecycle phases which are altered by the change. The test of the resultant changes must include nonregression testing as well as test of the change itself. All test results must be recorded. Decommissioning The procedure for decommissioning the system must be specified. This procedure must include the requirements for the safe decommissioning of the system and, where applicable, the safe removal or return of materials.As with commissioning, it is likely the decommissioning will be performed in a phased manner. The decommissioning procedure must make sure that a plan be developed that maintains the functional safety while the corresponding hazards are present. Similarly, the physical environment of the control equipment must be maintained while the equipment is required to function. The procedure for decommissioning must address the following items: ? The sequence in which the hazards are to be removed. ? Methods which permit the removal of interactions between safety functions while maintaining functional safety for the remaining possible hazards and without initiating safety responses. This must include the interaction between systems. ? A definition of the modules and materials which are to be returned to Rockwell Automation for ethical disposal following decommissioning.
History of Changes
This appendix contains the new or updated information for each revision of this publication. These lists include substantive updates only and are not intended to reflect all changes. Translated versions are not always available for each revision.The following terms and abbreviations are used throughout this manual. For definitions of terms not listed here, refer to the Allen-Bradley Industrial Automation Glossary, publication AG-7.1. A AADvance Workbench software A design, configuration, and maintenance software environment that enables the design of a multi-controller safety strategy as a single project, and then targets parts of the strategy for each controller. AADvance-Trusted SIS Workstation software A software suite for building process control projects for use with Trusted? Series 8000 controllers or AADvance? Series 9000 controllers. accuracy The degree of conformity of a measure to a standard or a true value. See also 'resolution'. achievable safe state A safe state that is achievable.Sometimes, a safe state cannot be achieved. An example is a non-recoverable fault such as a voting element with a shorted switch and no means to bypass the effect of the short.
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