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GE |
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PLC数据流的挑战 在过去,收集现场数据面临着多种挑战,更不用说连接到一些更高级别的主机系统。硬接线传感器最容易连接到PLC,但将PLC信息发布到现场或基于云的系统,需要对数据结构进行处理,还需要配置网络和通信协议。PLC不支持与更智能的现场设备通信所需的所有工业协议,并且在与主机系统连接方面仍存在一定的局限性。从控制层到运营层,再到企业系统和云的结构层次结构导航,是一个棘手的问题。 将有价值的车间数据发送到更高级别的运营、企业和远程云系统,传统上需要对许多硬件、软件和网络层进行复杂的配置。 用户需要生成自定义代码来选择、安排和管理数据。然后必须采取额外的步骤来处理扩展信息,如缩放、工程单位和标签描述。这可能涉及很多部分:PLC、网关、PC、软件包、网络配置和自定义代码。即使数据连接可以拼凑在一起,也常常以牺牲安全性为代价。传统的PLC没有包括强大的网络安全条款,特别是对于连入互联网的系统。 现代PLC与数据集成 幸运的是,现代PLC包含克服这些挑战所需的所有元素,大大降低了从车间到云和企业获取数据的难度。PLC已成为实施边缘自动化任务的一个成熟可靠的平台。一些供应商意识到不必为数据通信功能添加新的设备,而是可以通过必要的IT相关技术来增强基于OT的新一代PLC,以有效集成数据。 新一代PLC采用OT和IT通信协议以及必要的安全功能,可实现无缝数据集成。 为获得结果,所有数据集成元素都需要驻留在PLC中,从而为用户提供现成的体验。最终用户,尤其是IT领域的最终用户,也在寻找基于开源的技术,因为他们已经熟悉这种方法,而不是OT产品常见的环境。 PLC的数据集成协议连接了OT和IT系统,并可以创建多种方式将新、旧工厂车间设备连接到的企业系统。流行的串行和以太网OT协议包括ASCII、ModbusRTIK-Seq、ModbusTCP和EtherNet/IP。基本IT协议包括SNTPDNS、MQTT、SMTP、SSL和Web服务。 根据不同的应用需求,PLC可以启用以下几种流行的数据集成选项: |将数据存储在PLC中并通过FTP转发 现在的PLC内存足够大,可在本地保存数小时、数天或数周的数据,然后使用文件传输协议(FTP)将其转发到网络或与云连接的计算机。这种存储和转发数据的形式,对于不需要接近实时的批处理非常有效,但是,它需要用户配置用于聚合数据的PLC和用于解析数据的主机系统。 |Web服务器 有时,PLC只需要公开有限的数据,用户就可以以近乎实时、只读的方式远程查看。在这种情况下,一些PLC内置了Web服务器,使用户能够开发HTML5画面来显示数据和信息,并可使用浏览器查看。不需要其它额外的软件或许可。这种基本方法有个缺点:需要将客户端连接到同一网络(或通过防火墙和路由)并具有适当的访问权限。 |基于TLS的MQTT 出于多种原因,消息队列遥测传输(MQTT)协议已成为PLC到云通信的通用标准。虽然它提供双向通信,但现场PLC只是将对话作为出站消息发送给集中代理器,该代理可以位于设施内或更常见的云中。这有助于避免防火墙和IT管理问题。尽管MQTT可以在没有安全措施的情况下实施,但实践是使用标准传输层安全性(TLS)网络协议执行通信,并使用MQTT中提供的其它安全功能。 MQTT通信处理速度快,但具有足够的弹性,可以承受工业和边缘装置可能发生的各种网络中断。用户可以通过企业或移动客户端访问代理数据,也可以实施云计算服务以直接连接来自PLC的MQTT数据。 |RESTAPI 前述三种方法都需要用户在PLC上管理和配置源数据。但是,如果PLC提供表现层状态转移(REST)应用程序编程接口(API),则外部客户端可以通过标准请求发起通信并访问驻留在PLC内存中的数据(图3)。 由于无需在PLC中进行任何修改,这种强大的功能使用户将来可以更轻松地更改轮询数据标签。客户端向PLC发送请求,PLC从其内存中收集必要的数据,并用JSON格式的数据进行回复,这些数据易于阅读和解析。消息传递通过来自客户端的HTTP请求,使用传统的和通常开放的IT端口(如端口80)实现。但是,与Web服务器选项一样,外部客户端必须在同一网络上,或允许通过任何防火墙。 RESTAPI使外部客户端只要提供适当的安全凭证,即可发起对驻留在PLC内存中的数据的访问请求。
today released the findings of a new global study1 of international business and technology leaders on industrial transformation, looking at the intersection of digitalization and sustainability. The study, “Billions of better decisions: industrial transformation’s new imperative,” examines the current take-up of the Industrial Internet of Things (IoT) and its potential for improving energy efficiency, lowering greenhouse gas emissions and driving change. The goal of the new ABB research is to spur discussion within industry regarding opportunities to leverage the Industrial IoT and empower companies and workers to make better decisions that can benefit both sustainability and the bottom line.
“Sustainability goals more and more are a crucial driver of business value and company reputation, and Industrial IoT solutions are playing an increasingly important role in helping enterprises achieve safe, smart and sustainable operations,” said Peter Terwiesch, President of ABB’s Process Automation business area. “Unlocking insights hidden in operational data holds the key to enabling literally billions of better decisions throughout industry and acting upon them, with significant gains in productivity, reduced energy consumption and lower environmental impact.”
The study, commissioned by ABB, found that an organization’s “future competitiveness” is the single greatest factor – cited by 46 percent of respondents – in industrial companies’ increased focus on sustainability. Yet while 96 percent of global decision-makers view digitalization as “essential to sustainability,” only 35 percent of surveyed firms have implemented Industrial IoT solutions at scale. This gap shows that while many of today’s industrial leaders recognize the important relationship between digitalization and sustainability, the adoption of relevant digital solutions to enable better decisions and achieve sustainability goals needs to accelerate in sectors like manufacturing, energy, buildings and transport.
以下是我司【主营产品】,有需要可以发来帮您对比下价格哦!
〖⒈〗ABB系列产品===PLC模块,可编程控制器,CPU模块,IO模块,DO模块,AI模块,DI模块,触摸屏,驱动器,IGCT。
〖⒉〗Schneider(施耐德电气)系列产品===140CPU系列,140CPE系列,140全系列模块
〖⒊〗General electric(通用电气)系列产品===IS200系列,IC693系列,IC695系列,IC698系列,CPU模块及其他GE全系列产品
〖⒋〗Westinghouse(美国西屋)系列产品===1C31系列,5X00系列等 西屋模块。
〖5〗Allen-Bradley(美国AB)系列产品===1756系列,1769系列,AB全系列产品可订货。
〖6〗Invensys Foxboro(福克斯波罗)===FCP系列,FCM系列,FBM系列
〖7〗Bosch Rexroth(博世力士乐)===控制器,驱动器,电机,放大板
〖8〗TRNEX (英维思)===3721 ,3625 ,3101 ,3503E,4351B,等等英维思全系列模块
〖9〗BENTLY (本特利)===3500系列,3300系列等 本特利各系列模块
〖10〗HONEYWELL(霍尼韦尔)===CC系列,05701系列,513系列,514系列等,霍尼韦尔各系列模块。
〖11〗KOLLMORGEN(科尔摩根)===S203系列驱动器,6SM系列电机等,各系列驱动器,控制器,电机
更多欧美进口品牌欢迎您来询价,我将会给您一个比同行更美丽的价格,厦门雄霸期待与您长期合作携手共赢!
Win-win scenarios with the Industrial IoT
With 63 percent of executives surveyed strongly agreeing that sustainability is good for their company’s bottom line, and 58 percent also strongly agreeing it delivers immediate business value, it’s clear that sustainability and traditional priorities of Industry 4.0 efforts – speed, innovation, productivity, efficiency, customer-centricity – are increasingly intertwined, opening up win-win scenarios for companies looking to drive efficiency and productivity while making strides on climate change.
“The International Energy Agency2 estimates that industry accounts for more than 40 percent of global greenhouse gas emissions today,” said Terwiesch. “If we are to reach climate objectives such as the UN’s Sustainable Development Goals and the Paris Agreement, industrial organizations need to implement digital solutions as part of their sustainability strategies. Embracing these technologies at all levels – from the boardroom to the facility floor – is key, as every member of the industrial workforce can become a better decision-maker when it comes to sustainability.”
ABB innovations for sustainability
ABB is committed to leading with technology to enable a low-carbon society and a more sustainable world. Over the past two years, ABB has reduced greenhouse gas emissions from its own operations by more than 25 percent. As part of its Sustainability strategy 2030, ABB expects to be fully carbon neutral by decade’s end and to support its global customers in reducing their annual CO2 emissions by at least 100 megatons by 2030, the equivalent of removing 30 million combustion cars from the roads each year.
ABB’s investments in digital capabilities are core to this commitment. With more than 70 percent of ABB’s R&D resources dedicated to digital and software innovations, and a robust ecosystem of digital partners, including Microsoft, IBM and Ericsson, the company has established a leading presence in Industrial IoT.