SE3008 KJ2005X1-SQ1 12P6383X032艾默生公司的能力在仪表控制系统领域。2011年左右,EMERSON公司首先提出来电子布线(也称CHARM)技术方案。该方案的主要设备是位于现场的单通道特性模块箱(以下简称CHARM箱)。CHARM箱中主要包括一对冗余CHARM IO卡件(CIOC)和96个(或者48个)CHARM单卡。每个CHARM单卡独立安装可插拔底板上,一个底板可容纳12个单卡,每个CHARM大可安装8个底板。任一底座通道可以配置任何类型的CHARM单卡,因此总体看来任何信号都可以进入CHARM箱,这样就提供了的灵活性。现场通用IO技术并没有消灭安全栅继电器和IO卡件,而只是将这些功能组件分散到了现场接线箱。该技术真正替代的是接线柜,所以早开发此技术的艾默生公司给该技术取名叫电子布线技术。现场通用IO技术使得机柜室面积大幅度减少。传统主电缆是多对铜芯对绞电缆,平均每根电缆都有几百米,是模拟信号传输方案材料和安装的大头。现场通用IO技术用廉价大容量的光纤替代了铜芯主电缆,SE3008 KJ2005X1-SQ1 12P6383X032提高了信号传输效率,节省了大量的材料和安装费用。初步测算,现场通用IO技术让仪表控制系统设备材料总投资降低30%。SE3008 KJ2005X1-SQ1 12P6383X032由于通用IO卡件可以适应各种现场仪表信号,工程师不必再费尽心思考虑各种现场信号如何分类汇总,而只要给现场仪表信号找一个接线箱即可。现场通用IO接线箱无需定制,可以成为货架商品,其供货周期归零。这个特性缩短了工程设计、设备供货和安装的周期,节省了大量工程建造。现场通用IO技术有着很大性能,控制系统厂商陆续推出自己的技术解决方案。
SE3008 KJ2005X1-SQ1 12P6383X032尤其是分布式CHARM技术用以太网网线或者光纤取代了传统的主电缆。CHARM技术为仪表现场接线提供了灵活性。CHARM技术降低了设备和安装,减少了工程设计和安装工作量,是一个非的方案。截止到2018年底,全球已有超过162万点的CHARM设备成功安装运行。烟台万华年产百万吨乙烯综合装置DCS全部采用了现场CHARM技术方案,系统总容量超过9万点。该厂已于2020年11月份成功开车,控制系统运行良好。和利时自动化公司推出了光纤总线智能IO技术解决方案。该方案由现场智能IO接线箱和光纤网络组成。现场智能IO接线箱由16通道多功能IO模块和光纤通信模块组成。16通道多功能IO模块可以用同一套硬件接收处理各种IO类型的信号,SE3008 KJ2005X1-SQ1 12P6383X032并且为现场仪表供电。16通道多功能IO模块采用了软件定义的办法处理不同的现场IO信号,同时在IO卡件前面增加了信号调理板预处理更多种类信号。除了传统模拟信号外,多功能IO模块还可以接收包括PROFIBUS DP/PA, MODUBUS RTU等总线信号,SE3008 KJ2005X1-SQ1 12P6383X032从而提高了现场多功能IO模块的适用性。光纤网络提供了高可靠性的冗余数字信号传输路径。位于现场的光纤接线盒可以汇总多32路光纤。从光纤接线盒出来的光纤进入机柜室。在机柜室侧,冗余光纤通过光电模块接入控制器。
SE3008 KJ2005X1-SQ1 12P6383X032 UIO card has no detachable single card module to adapt to various signals, but adopts software configuration method to define IO channel type. This method also realizes the access of general IO signals.The advantage of defining IO channel type by software configuration is that the hardware is completely consistent, SE3008 KJ2005X1-SQ1 12P6383X032and it is unnecessary to prepare different modules for different signals. The way of software defining IO type increases some hardware complexity. In order to improve the hardware adaptability, the manufacturer has designed 128 LLAI special temperature cabinets for temperature signals.A petrochemical project in South China under design uses the UIO technical scheme of Honeywell.The representative on-site general IO technical solutions of the three companies are introduced above. Other companies, such as Yokogawa, ABB and Zhejiang Zhongkong, have also launched or will launch similar products, which will not be repeated here. Interested readers can search online.The on-site general IO technology has brought the IO card to the industrial site, and replaced the copper main cable with optical fiber, greatly saving the project construction cost. This technology improves the flexibility of engineering design and installation, SE3008 KJ2005X1-SQ1 12P6383X032and shortens the design, supply and installation cycle of the control system. In the plant operation stage, the technology has the characteristics of low maintenance.On site general IO technology opens up a new direction for the development of process industry control system technology,SE3008 KJ2005X1-SQ1 12P6383X032 and brings greater value to engineering construction companies and operating units.
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