Intelligent device management with EDDL

Intelligent device management with EDDL
用EDDL管理智能设备
EDDL technology was specifically designed with the process industry in mind. EDDL is an integral part of the bus protocols used in process industries: HART, Foundation fieldbus and Profibus. For instance, EDDL is required in systems that support the Foundation fieldbus function block programming language. It is a complete process industry solution spanning transmitters, analysers, valves, variable speed drives, motor starters and MCC (but not motion control), and covers devices used in both process control and process safety. The graphical enhancements possible with EDDL include waveform plots, trend charts and dial gauges that are common in process control. To meet the needs of the process industry, the standard EDDL dictionary contains common terms and phrases used in process instrumentation to ensure technicians see consistent software prompts and other information.
EDDL是专为过程行业考虑而设计，是过程行业中用到的总线协议整体的一部分：HART，基金会现场总线和Profibus。

例如，在需要支持基金会现场总线功能模块编程语言的系统中需要EDDL。

完整的过程行业解决方案包括发射器、分析仪、阀、变速驱动器、马达起动机和MCC（不是动作控制），包括了过程控制和过程安全中用到的设备。

EDDL的图表增强功能包括波形图、趋势图和过程控制中常见的刻度盘。

为了满足过程行业的要求，EDDL标准词典收录了过程仪表仪器中常用的术语和词条，确保技术人员看到的提示和其它信息术语和用词的一致性。

Process instruments, such as radar level transmitters, are set up and calibrated in the field, and in many process industries this requirement is met by readily available handheld communication devices. EDDL is the best fit for process control; therefore, it is also used in the DCS world of integrated systems. EDDL remains independent from underlying gateways and interface cards, so one EDDL file fits all systems.
过程仪表仪器例如雷达液位计，是在现场安装和调试完成的，在许多过程行业中，是通过手持通信设备来完成这项工作。

EDDL最适合用于过程控制；因此，也用于DCS的一体化系统中。

EDDL不依赖网关和接口卡，所以一个EDDL文件可以适用于所有系统。

Interoperability
互操作性
EDDL has been the de facto industrial standard since 1992 and an international standard since 2004. It was enhanced by a partnership between the Fieldbus Foundation, HART Communication Foundation, Profibus Nutzerorganisation eV (PNO) and OPC Foundation to develop graphics enhancements for the IEC 61804-3 standard. Plants now have the freedom to choose systems, devices and portable tools from their preferred vendors. EDDL is the key to interoperability between manufacturers, using different protocols and different versions, to unlock capabilities, access data and unleash the full capability of systems and devices as per NAMUR NE 105 recommendations.
EDDL自1992年就成为了事实上的行业标准，并在2004年成为国际标准。

通过
现场总线基金会，HART通信基金会，PNO和OPC基金会的合作，EDDL得到了加强，以IEC 61804-3标准的要求开发出了图表增强功能。

现在，各家工厂可以从他们优先认可的供应商那里选择系统、设备和编写工具。

EDDL对于个厂商间的
可互操作性是关键，因为这些厂商用可能用了不同的协议和版本，EDDL可以解
除各种能力限制，数据读取，并按照NAMUR NE 105标准的建议完全解放系统和设备的能力。

Hundreds of companies have developed products around the EDDL technology. EDDL supports radar level transmitters and many other devices offered by many manufacturers: simple transmitters, analysers, valve positioners, variable speed drives, machinery health transmitters and bus diagnostics. EDDL solves an existing problem by allowing device management through a single, universal software.
围绕EDDL技术，上百上千的公司开发出了不同的产品。

EDDL支持雷达液位计以及不同厂商的其它许多产品：简易发射器、分析仪、阀门定位器、可变速驱动器、机器健康状态监控器和总线诊断设备。

EDDL允许用一个通用软件来管理设备，
从而解决现有的问题。

As an industry standard, EDDL is the basis for control system engineering stations, handheld field communicators and device management software that is a part of the asset management solution, and for workbench laptop software. EDDL is the only technology in use in all these tools. It is possible to use EDDL in the DCS engineering station because it is not software, and to use it in handhelds because it is not locked in to the Microsoft Windows platform.
作为行业的标准，EDDL是控制系统工程站、手持现场通信设备和资产管理方案
组成部分的设备管理软件（用于工作台笔记本电脑软件）的基础。

EDDL是所有
这些工具使用的唯一一种技术。

EDDL不是软件，所以可以用于DCS工程控制站；EDDL也没有锁定植入微软视窗平台，所以亦可用于手持设备。

Thanks to this full suite of tools, EDDL supports all phases of the life cycle: system configuration, commissioning, operations and maintenance. Although performing all of these tasks is possible with one kind of tool, it is probably not ideal. Different tools better suit each phase of the life cycle. System configuration is best done from the DCS; commissioning with a handheld communicator; operations from device management software that is part of an asset management solution; and maintenance from a laptop in the workshop.
由于完整的工具系列，EDDL支持生命周期的所有阶段：系统配置，调试，操作
和维护。

尽管可以用一种工具完成所有这些任务，但不是最佳选择。

不同的工具更适合不同的阶段。

系统配置最好从DCS来完成；调试可以用手持通信设备来完成；用资产管理解决方案组成部分的设备管理软件来执行操作；而维护可以通过车间里的笔记本电脑来完成。

Many manufacturers have developed products around the EDDL standard so that support for the infrastructure, tools and tasks are already available. This includes laptop software that use PCMCIA interface cards for FF and USB modems for HART — even the old RS232 modems for HART are supported. Device management software can either tap into the I/O subsystem of modern control systems or to multiplexers in use with older systems. All these tools built around EDDL provide a complete solution to the varying needs of each phase of the life cycle.
许多厂商是围绕EDDL来开发产品的，所以对于构架、工具和任务是完全可以支持的。

这就包括使用PCMIA接口卡连接FF以及USB调制解调器来连接HART设备的软件——甚至支持用于HART的RS232调制解调器。

设备管理软件既可以连接现代控制系统的I/O子系统，也可连接老系统的多路连接器。

所有围绕EDDL制造的工具为生命周期每个阶段的不同要求提供了完整的解决方案。

EDDL is at the core of the digital nervous system for intelligent device management software. These applications provide functions such as
on-screen display of the device data, printing of reports, exporting device date to Excel and data availability for other applications through OPC or XML/MIMOSA.
EDDL是智能设备管理软件数字神经系统的核心。

这些应用程序的功能包括屏幕
显示设备数据，打印报告，输出Excel格式的设备日期，以及通过OPC或
XML/MIMOSA为其它程序提供数据。

Many services have grown up around the EDDL technology as it is an interoperable standard. The HCF, FF and PNO, as well as manufacturers, furnish interoperability tested EDDL files for fast and easy download for plants that receive a new type or version of device. The bus organisations provide interoperability testing, which is a form of quality assurance
for plants using the devices, and training on these bus technologies includes EDDL as part of the curriculum.
围绕EDDL技术发展成长除了许多服务，因为EDDL是可互操作的标准。

HCF、FF 和PNO以及其他厂商可以为收到新型或新版本设备的工厂提供可高速方便下载的可互操作性测试过的EDDL文件。

总线技术机构可提供可互操作性测试，这是对使用这些设备工厂的一种质量保证，这些总线技术的培训通常也会将EDDL作为课程的一部分。

Integrated device diagnostics
集成设备诊断
A digital plant architecture that uses the power of field intelligence to improve plant performance must deliver accurate, actionable information to the right person in time to make a difference. But who is the right person? When a device fails, operations first needs to take evasive action. They may have minutes or hours to act before the process is affected. The responsibility for fixing the device then falls to the maintenance team. Both maintenance and operations need to know about device failures, albeit for different reasons.
使用了现场智能的强大功能以提高工厂业绩的数字化工厂架构必须能为恰当的人选实时提供精确、可执行信息。

但是，谁来担到这个恰当的人选？设备一旦出现故障，操作首先需要执行规避措施。

在过程受影响前，可能有几分钟或几小时时间来应对。

修理设备的责任是由维护团队来完成。

维护和操作人员需要在各种可能的原因中确定到底是什么故障。

In the past, capturing device diagnostics was often not done. The few systems that did capture diagnostics often displayed it only on a separate maintenance station that was not continuously attended and, therefore, the information was not acted upon. Evasive action was not taken, so the process was allowed to go off-spec or shut down. The device also was not repaired in a timely manner. Therefore, there was a need for a new solution that allowed a timely response based on actionable information.
在过去，通常是无法做到捕捉设备诊断信息的。

只有少数的系统捕捉诊断信息，但只能显示在一个独立的维护工作站上，而这个工作站并不是一直有人看管，因此诊断信息得不到措施响应。

不采取规避措施，那么这个过程只能不合规定地进行下去或者整个关闭。

设备也同样得不到及时修理。

因此，就需要一种新方案，可对需要响应的信息作出及时响应。

EDDL is now used to overcome this problem. EDDL files are compressed text, not software, and are non-intrusive and, therefore, permitted to be loaded on DCS servers and workstations without affecting the robustness of the
system as per NAMUR NE 105 requirements. It is now possible to integrate annunciation of device alarms, such as radar level transmitters, on operator stations and allow the operator to call up detailed diagnostics as suggested in the NAMUR NE 91 recommendation. EDDL is the platform for enabling device diagnostics for incorporation into daily work processes, so that operators can act before the process is affected and technicians can begin repairs sooner. EDDL is the way to get critical diagnostics to operators thus enabling a reduction in downtime. When plants perform maintenance more effectively, they operate with an advantage.
现在，EDDL就被用来克服这个问题。

EDDL文件是压缩文本而非软件，是非侵入类型文本，因此允许在DCS服务工作站上加载而不影响整个系统的运行，符合NAMUR NE 105的要求。

现在，可以整合各类设备警告，例如雷达液位计，人机对话站，并按照NAMUR NE 91的建议，允许操作人员调用详细的诊断信息。

EDDL 是允许将设备诊断信息植入日常工作流程中的平台，这样操作人员就可以在过程受到影响前作出行动，而技术人员可以更快地开始修理。

EDDL是操作人员获取关键性诊断信息的途径，因此可减少故障停机时间。

一旦工厂的维护效率上去了，整个运营就有了一个优势。

EDDL enables intelligent device management, such as better and easier device set-up, as well as predictive diagnostics that are integrated with control system operator stations. While other technologies can display diagnostics and set-up information, these diagnostics cannot be integrated into the primary user interface — the DCS operator console. Moreover, keeping the system current with new versions is more difficult with other technologies — as the plant utilises new device types and versions, the system may become ineffective and fall into disuse. EDDL-based software enables both speed and convenience in updating new devices and versions which other solutions cannot match.
EDDL实现了智能化设备管理，例如更好更便捷的设备设置，以及与控制系统人机界面集成一体的预测诊断。

虽然其它技术也可以显示诊断和设置信息，这些诊断信息却无法集成到主用户界面中——DCS操作控制台。

而且，其它技术在更新系统版本方面更加复杂——一旦工厂使用了新的设备型号和版本，那么系统就可能失效，进而无用。

基于EDDL的软件可以同时提高新设备和版本跟心的速度和便利性，这是其它方案无法比拟的。

Ease of use
使用方便
The EDDL file comes bundled with the device so there is no need to purchase a driver, or licence key, and the EDDL file is interoperability tested with the device as a package. Software comes ready to use and preloaded with EDDL files for hundreds of different device types and versions from
many manufacturers which use different protocols. Keeping the software current with new device types and versions as they arrive at the plant is easy — simply download a copy of the new EDDL file from the manufacturer's website or a corresponding bus protocol organisation’s website. An EDDL file is small so that descriptions for many devices can even be emailed as a simple attachment, thus saving time. This ease of administration gives plants more independence and reduces the reliance on system vendor services. As the manufacturer identifies product usability issues, they design EDDL solutions which are easy to deploy. EDDL offers a robust mechanism for managing device and EDDL file version changes, so making product improvement transitions represent a low risk.
EDDL文件是与设备捆绑出售的，所以无需再购买驱动程序或许可密钥。

EDDL文件与设备的可互操作性经过测试，且打包一同提供。

软件即可使用，而且预先加载了用于成千上百种设备类型和版本的EDDL文件，这些设备类型和版本来自多家使用不同协议厂商。

设备到达工厂后，更新设备类型和版本非常方便——只需从厂商的网站或相应总线协议机构的网站下载新的EDDL文件。

EDDL文件不大，所以可以作为附件用电子邮件发送，节省时间。

这种管理上的便利让工厂减少对于系统供应商服务的依赖性。

一旦厂商发觉到产品的使用存在问题，就可以设计EDDL解决方案，配置起来方便。

EDDL为管理设备和EDDL文件版本变更提供了灵活的机制，降低产品改进的过渡风险。

No need to retrain
无需二次培训
New EDDL enhancements do not require a change of skills or procedures because administration of the files is similar to the traditional DD files used with HART, Foundation fieldbus and Profibus devices over the past 10 years or more. Just copy and paste EDDL files — there is no need to learn new software installation procedures or licence key skills. Adopting the new EDDL enhancements is easy, as procedures remain the same and the interface cards and multiplexers remain the same. Only a one-time upgrade of the system software is required, and this is done by the system manufacturer.
EDDL新增强功能不需要对技能或过程进行更新，因为文件管理与过去十几年中HART、FF和Profibus设备使用的传统DD文件相类似。

只需粘贴复制EDDL文件——无需学习新的软件安装程序或许可必要技能。

EDDL新增强功能使用简便，因为操作流程保持不免，接口卡和多路连接器保持不变。

只需一次性升级系统软件，而这个是由系统制造商来完成的。

Investment protection
投资保护
Plants will live with their systems for a long time. The enhancements to EDDL are built on the tried-and-tested traditional DD platform and incorporate new graphical elements — EDDL is a mature technology based on the DD heritage. Thousands of sites already use traditional DD, and EDDL enhancements are already proven in hundreds of sites. More and more devices are making full use of the enhanced infrastructure so the standard is playing out nicely for millions of installed devices and thousands of systems.
工厂会沿用自己的系统很长时间。

EDDL上的增强功能是建立在测试并试用过的传统DD平台之上，是DD的后续。

成千上万的的工厂已经了传统的DD，EDDL增强国能在成百上千个工厂得到了有效验证。

越来越多的设备正在充分利用增强的功能，所以这个标准可以在成百上千万的设备和成千上万的系统上得以沿用。

Because EDDL files are not software, it is not made obsolete by new versions of Windows over the long term, as required by NAMUR NE 105. EDDL is a solution for those who are in it for the long haul. Upgrading a system from traditional DD to enhanced EDDL adds value to the existing infrastructure and staves off obsolescence for several years.
因为EDDL文件不是软件，按照NAMUR NE 105标准的要求，长期也不会因为Windows版本的更迭而过时。

EDDL是长期致力于该领域用户的解决方案。

将系统从传统的DD升级到加强型EDDL可以为现有的基础设施提高价值，免去几年内过时之虞。

*Jonas Berge is Director, PlantWeb Consulting, at Emerson Process Management.
乔纳斯伯格，工厂网络咨询总监，埃默森过程管理。