产品内容介绍
1391-DES15-DI-AQB模拟数字输入控制器
维护保养记录确保安全目标在系统的所有故障、故障和异常的记录
它们会发生。这需要最终用户和系统集成商。强烈建议包括以下数据：
•故障、故障或异常的描述
•所涉及设备的详细信息，以及模块类型和序列数字（如适用）
•故障发生的时间和原因发生了•为纠正或解决问题
•问题解决、补救行动计划和影响分析
您必须定义现场退货、修理和缺陷的程序处理。
由于以下原因而对最终用户提出的信息要求该程序必须清楚记录并提供给最终用户。
这个缺陷处理程序必须包括：
•检测产品相关缺陷的方法，并将其报告给
最初的设计师
•检测可能影响其他元件的系统故障的方法系统或其他系统，以及与令人满意的问题
•跟踪所有报告异常及其临时异常的程序解决方案和相应的纠正措施（如适用）
•本程序对最终用户的信息要求
必须清楚记录并提供给最终用户保留功能安全在系统生命周期内，不可避免地会发生设计变更；以确保为了保护系统安全，必须谨慎管理此类更改。
确定设备或系统更新措施的程序必须规定并记录。这些程序是终端的责任但系统集成商必须提供足够的指导，以便程序在变化。
产品级模块和固件更新必须特别考虑产品级模块的程序和固件更新。
系统更新必须包括应用程序更改和固件更改。
程序必须包括对任何此类活动进行影响分析的需要以及改变系统及其应用的措施适应要求的结果。
必须应用此处规定的其他要求，以及为以下项目规定的要求：范围定义
•危害和风险分析
•系统功能和安全要求
•系统工程
•应用程序编程
•系统生产
•系统集成
•安装和调试这些程序的定义必须包括检查和系统更改将采用的授权流程。
Keeping Maintenance Records
To make sure that the safety objectives are met through the lifetime of the system it is important to keep records of all faults, failures and anomalies as they occur. This requires the maintenance of records by the end-user and the System Integrator. It is highly recommended the following data is included: • Description of the fault, failure or anomaly • Details of the equipment involved, together with module types and serial numbers where applicable • When the fault was experienced and the circumstances leading to why it happened • Any temporary measures implemented to correct or work around the problem • Description of the resolution of the problem, remedial action plans and impact analysis You must define the procedure for field returns, and repair and defect handling. The information requirements placed on the end user because of this procedure must be clearly documented and given to the end user. The defect handling procedure must include: • Method of detecting product related defects and the reporting of these to the original designers • Methods for detecting systematic failure that could affect other elements of the system or other systems, and links to the satisfactory resolution of the issues • Procedures for tracking all reported anomalies, their temporary solutions and resultant corrective action where applicable • The information requirements placed on the end users by this procedure must be clearly documented and given to the end user
Preserving Functional Safety
Design changes will inevitably occur during the system life-cycle; to make sure that the system safety is preserved, such changes must be carefully managed. Procedures defining the measures for updating the plant or system must be specified and documented. These procedures are the responsibility of the end user, but the system integrator must supply sufficient guidance so that the procedures keep the required level of functional safety during and after the changes.
Product Level Module and Firmware Updates
Special consideration must be given to procedures for product level module and firmware updates. Updates to the system must include the modification adaptation for application changes and firmware changes. The procedures must include the need to do an impact analysis of any such changes, and the measures to change the system and its application as an outcome of the adaptation requirements. The other requirements specified here must be applied, as well as the requirements specified for the following items: • Scope definition • Hazard and risk analysis • System Functional and Safety Requirements • System engineering • Application programming • System production • System integration • Installation and commissioning The definition of these procedures must include the examination and authorization process to be adopted for system changes.
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PLC可编程控制器模块，DCS卡件，ESD系统卡件，振动监测系统卡件，汽轮机控制系统模块，燃气发电机备件等，优势品牌：Allen Bradley、BentlyNevada、ABB、Emerson Ovation、Honeywell DCS、Rockwell ICS Triplex、FOXBORO、Schneider PLC、GE Fanuc、Motorola、HIMA、TRICONEX、Prosoft等各种进口工业零部件、欧美进口模块。
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