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硬件安装 不同的DCS，对于各种插件在插件箱中的安装，会在逻辑顺序或物理顺序上有相应的规定。另外，现场控制单元通常分为基本型和扩展型两种，所谓基本型就是各种插件安装在一个插件箱中，但更多的时候时需要可扩展的结构形式，即一个现场控制单元还包括若干数字输入/输出扩展单元，相互间采用总线连成一体。

Our PCI-5565PIORC Reflective Memory node card in PCI form factor is engineered specifically to provide highly deterministic, tightly timed performance for a variety of advanced networking applications that need to deterministically move large amounts of data fast and share that data in real time among similar or disparate network nodes.

J-Squared’s RFM products are designed to fit into your existing hardware and operating system environment, integrating diverse hardware platforms running different operating systems into a single, shared memory network.

The PCI-5565PIORC is well-suited for industrial control applications in which implementation simplicity, a lack of software overhead, and bus structure and operating system independence are key factors, such as:
Aircraft simulators

 

Automated testing systems
Ship and submarine simulators
Aluminum rolling mill
Power plant simulators
Engine test stands
Industrial process control
High-speed data acquisition
PLCs
Features
High speed, easy to use fiber-optic network (2.12 Gbaud serially)
Data written to memory in one node is also written to memory in all nodes on the network
Up to 256 nodes
Connection with multimode fiber up to 300 m, single mode fiber up to 10 km
Dynamic packet size, 4 to 64 bytes of data
Transfer rate 43 MB/s (4 byte packets) to 174 MB/s (64 byte packets)
64 MB or 128 MB SDRAM Reflective Memory
Two independent DMA channels
Any node on the network can generate an interrupt in any other node on the network or in all network nodes with a single command
Error detection
Redundant transfer mode for extra error suppression
No processor overhead
No processor involvement in the operation of the network
PCI 64-bit 66 MHz transfers, 3.3 or 5V, single width mezzanine interface
Please call for Windows Drivers (available Windows 7/XP/Vista/Server 2008/Server 2003, 32/64-bit for PCIE/PCI/PMC)具有PIO读取性能的PCI反射存储器

 

 

作为反射存储器（RFM）技术的长期0，J-Squared了解实时网络的需求。我们知道，某些类型的应用程序需要确定性、实现的简单性和软件开销的缺乏，这是以太网等普遍存在的技术无法提供的。



我们的PCI规格的PCI-5565PIORC反射式存储节点卡专门设计用于为各种0网络应用程序提供高确定性、时间紧的性能，这些应用程序需要快速确定地移动大量数据，并在相似或不同的网络节点之间实时共享这些数据。

J-Squared的RFM产品旨在适应您现有的硬件和操作系统环境，将运行不同操作系统的各种硬件平台集成到一个单一的共享内存网络中。



PCI-5565PIORC非常适合于工业控制应用，在这些应用中，实现简单、缺乏软件开销、总线结构和操作系统独立性是关键因素，例如：

飞机模拟器

自动化测试系统

船舶和潜艇模拟器

铝材轧机

电厂模拟器

发动机试验台

工业过程控制

高速数据采集

可编程逻辑控制器

特征

高速、易于使用的光纤网络（2.12 Gbaud串行）

写入一个节点内存的数据也写入网络上所有节点的内存

0多256个节点

与多模光纤的连接0长300米，单模光纤0长10公里

动态数据包大小，4至64字节数据

传输速率43 MB/s（4字节数据包）到174 MB/s（64字节数据包

64 MB或128 MB SDRAM反射内存

两个独立的DMA信道

网络上的任何节点都可以通过一个命令在网络上的其他任何节点或所有网络节点中生成中断

错误检测

用于额外错误抑制的冗余传输模式

无处理器开销

处理器不参与网络操作

PCI 64位66 MHz传输，3.3或5V，单宽度夹层接口

请调用Windows驱动程序（适用于Windows 7/XP/Vista/Server 2008/Server 2003，适用于PCIE/PCI/PMC的32/64位）经济性与可用的建设时间系统

系统设计人员越来越需要在更短时间内构造出更强大、更复杂的系统。在这种情况下，硬件成本与软件和集成硬件/软件的成本相比微不足道，这点在单机系统与微系统中表现得更加明显。在时间与系统正常运行的低单位投资成为市场上的关键因素时，使用反射内存便会带来极大的利益。在这些要求苛刻的系统中，反射内存简单的读/写通信方式大大提高了产品上市时间，同时提高了网络上的数据通过量。反射内存价格PCI5565 PCI-5565  PMC5565 VMIC5565 反射内存 反射内存卡 GE反射内存 

  
GE反射内存代理 GE PCI5565 GE反射内存卡
PCI5565系列反射内存卡，PCI-5565PIORC光纤反射内存订购信息
PCI-5565PIORC-110000 128MB反射内存卡 PCI接口PCI-5565
PCI-5565PIORC-111000 单模光纤 PCI-5565PIORC
PCI-5565PIORC-210000 256MB反射内存卡  多模光纤 256M反射内存卡
PCI-5565PIORC-211000 256MB反射内存卡  单模光纤 PCI-5565PIO

PMC5565接口反射内存卡，光纤反射内存，超高速反射内存订购信息
PMC-5565PIORC-110000 128MB反射内存卡 多模光纤接口PMC5565
PMC-5565PIORC-111000 单模光纤反射内存PMC5565
PMC-5565PIORC-210000 256MB反射内存卡   多模光纤反射内存PMC-5565
PMC-5565PIORC-211000    单模光纤PMC5565PIORC

PCIE接口反射内存，PCIE5565  PCIE-5565 PCI-5565RC-110000
PCIE-5565PIORC-100A00
PCIE-5565PIORC-200A00

PCIE-5565RC-100000 PCIE5565反射内存卡
PCIE-5565RC-200000 PCIE-5565 128M反射内存

反射内存交换机ACC-5595 反射内存HUB
HUB-5595 GE反射内存交换机，GE反射内存集线器，反射内存交换机

反射内存报价PCI5565 PCI-5565  PMC5565 VMIC5565 反射内存 反射内存卡 GE反射内存 ACC-5595,VMIACC-5595,GE交换机，GE集线器，反射内存报Executive layer

Servo motor, also known as executive motor, is used as an executive element in the automatic control system to convert the received electrical signals into angular displacement or angular velocity output on the motor shaft. It is divided into DC and AC servo motors. At present, foreign brands account for nearly 80% of the servo motor market in China, mainly from Japan, Europe and the United States. Among them, Japanese products take the lead with a market share of about 50%, and their famous brands include Panasonic, Mitsubishi Electric, Yaskawa, Sanyo, Fuji, etc., especially in the small and medium-sized OEM market. Benefiting from the impact of industrial upgrading, China's servo industry will maintain a rapid growth in the future, with a large space for domestic substitution. However, although the market in China is huge, the overall technology development of industrial control industry is relatively lagging behind. The localization rate of the automation market is less than 40%. Foreign famous brand companies such as the United States, Japan and Germany have absolute advantages over domestic manufacturers. In order to build a high-end and direct technology exchange platform for industrial control and robot industry, help domestic enterprises master core technology and improve the market competitiveness of domestic enterprises, Big Bit will hold the third industrial control and robot technology innovation seminar in Shanghai on November 25, 2016.

The process control level realizes the decentralized control functions of signal input, transformation, operation and output. In different DCS, the control devices of process control level are different, such as process control unit, field control station, process interface unit, etc., but their structural forms are roughly the same, which can be collectively referred to as field control unit FCU. The process management level is composed of engineer station, operator station, management computer, etc. It completes the centralized monitoring and management of the process control level, usually called the operation station. The hardware and software of DCS are designed according to the modular structure, so the development of DCS is actually to combine various basic modules provided by the system into a system according to the actual needs. This process is called system configuration.



1. Field control unit



The field control unit is generally far away from the control center and installed near the site. Its highly modular structure can be configured into process control units with different scales from several monitoring points to hundreds of monitoring points according to the needs of process monitoring and control.



The structure of the field control unit is that many plug-in boards (or cards) with decentralized functions are installed in the plug-in box in a certain logical or physical order. The field control units and their control management level are connected by bus to realize information interaction.



The hardware configuration of the field control unit needs to complete the following:



The configuration of plug-ins is based on the requirements of the system and the control scale. The host plug-in (CPU plug-in), power plug-in, I/O plug-in, communication plug-in and other hardware devices are configured;

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