ABB YPK112A

ABB的新的单一通道,可配置的I/O从固定功能I/O模块的暴政中解放出自动化工程师,通过在项目的任何时刻提供改变I/O类型组合的灵活性。

分享这一页将自动化工程从关键项目路径移开,首先要适应甚至是仪表需求的后期变化。全部的 工业过程在本质上是模拟的.因此,流程自动化的基

本要求之一是将模拟流程变量转换成当今数字控制器能够理解的比特和字节。控制器的数字决策,反过来,必须在某

一点上被转换为模拟动作,例如阀门位置的改变或电动机转速的调整。不久前,这个输入/输出(或仅仅是I/O)功能是固定功能、多通道I/O模块的专属领域,这些模块弥合了数字流程自动化系统与典型流程设备中的数百或数千个模拟场设备之间的鸿沟。如 "项目的问题",每个现场设备的导线对必须物理地组合到特定类型的I/O通道上,而该通道又必须连接到负责该特定变量的控制器上。这些串行设计的相互依赖性使得灵活的I/O子系统无法很好地适应变化,导致项目的重新设计、返工和最终超过预算的延迟项目。

尽管数字联网的现场仪器具有固有的优势,但对控制阅读器的调查表明,新项目I/O的一半以上依靠模拟信号传输。

ABB's new single channel, configurable I/O frees automation engineers from the tyranny of fixed function I/O modules, providing flexibility to change the combination of I/O types at any time in the project.

Sharing this page moves automation engineering away from the critical project path, first adapting to even the later changes in instrument requirements. All industrial processes are essentially simulated. Therefore, the foundation of process automation

One of the requirements is to convert analog process variables into bits and bytes that can be understood by today's digital controllers. The digital decision of the controller, in turn, must be made within a certain

It is converted into a simulated action, such as changing the valve position or adjusting the motor speed. Not long ago, this input/output (or just I/O) function was the exclusive domain of fixed function, multi-channel I/O modules, which bridged the gap between digital process automation systems and hundreds or thousands of analog field devices in typical process equipment. For example, in the case of "project issues", the wire pairs of each field device must be physically combined onto a specific type of I/O channel, which in turn must be connected to the controller responsible for that specific variable. The interdependence of these serial designs makes flexible I/O subsystems unable to adapt well to changes, leading to project redesign, rework, and ultimately delayed projects exceeding budget.

Despite the inherent advantages of digital networked field instruments, surveys of control readers have shown that over half of the new project I/O relies on analog signal transmission.