MVME187-004B Motorola  单板计算机 自动地完成程序或数据的存取

艾默生/摩托罗拉 MVME187-004B RISC 单板计算机

配置： • 25 MHz 处理器

• 32 MB DRAM

• 1 个 MC88100 MPU 和 2 个 MC88200 CMMU

• 4 个 44 引脚 PLCC ROM 插槽 • 128 KB 静态 RAM

在计算机中，存储器的主要作用是存储程序和各种数据信息，并能在计算机运行过程中高速、自动地完成程序或数据的存取。

MVME187-004B计算机的存储器通常包括内存储器和外存储器。内存储器直接与运算器、控制器交换信息，容量体积小，存取速度快，一般只存放那些正在运行的程序和待处理的数据。而外存储器通常以硬盘等形式表现而存在，作为内存储器的延伸，MVME187-004B用来存放一些系统必须使用，但又不急于使用的程序和数据，这些程序和数据必须调入内存才能够执行。外存储器通常读取数据较慢，但容量大，可以长时间保存大量信息。

单板计算机（Single-board Computer，SBC）是一种构建在单个电路板上的完整计算机，具有微处理器、存储器、输入/输出（I/O）以及其他功能计算机所需的其他功能。

MVME187-004B单板计算机被制作为演示或开发系统，用于教育系统或用作嵌入式计算机控制器。许多类型的家用计算机或便携式计算机将其所有功能集成到单个印刷电路板上。与台式个人计算机不同，单板计算机通常不依赖于扩展插槽来实现外围功能或扩展。单板计算机使用各种微处理器构建。简单的设计，例如由计算机爱好者构建的设计，通常使用静态 RAM 和低成本的 8 或 16 位处理器。其他类型（例如刀片服务器）的性能与服务器计算机类似，只是采用更紧凑的格式。

【主营产品】

主营:世界知名品牌的PLC .DCS 系统备件模块

Foxboro(福克斯波罗)∶I/A Series系统，FBM全系列、(现场输入/输出模块)）顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数据通信及处理等。

Westinghouse(西屋)∶1C3系列DCS系统、1X000、5X00、KJ系列、CPU、OVATION系统、WDPF系统、WEStation系统备件。

Triconex(英维思):冗余容错控制系统、基于三重模件冗余(TMR)结构的现代化的容错控制器。

Bently(本特利) : 3500、3300系统。

Rockwell(罗克韦尔) :ICS系统。

ABB:PM全系列DCS系统、IGCT高压变频器系列、工业机器人备件DSQC系列、INFI 90等。

ABB Bailey (贝利)︰BRC系列DCS系统、PM系列、DSDP/DSAO/DSTD/DSQC系列等。

Allen-Bradley : 1576/1785/1771/1757系列系统、1336$/1336F系列变频器、1394系列伺服控制器、MVI全系列、触摸屏2711系列等。

Yokogawa(横河):CPU等。

Honeywell(霍尼韦尔): TK/TC系统等。

MVME187-004B Motorola  单板计算机 自动地完成程序或数据的存取

Emerson/MOTOROLA MVME187-004B RISC single-board computer

Configuration: • 25 MHz processor

• 32 MB DRAM

• 1 MC88100 MPU and 2 MC88200 CMMU

• 4 44-pin PLCC ROM slots • 128 KB of static RAM

In the computer, the main role of memory is to store programs and various data information, and can complete the access of programs or data at high speed and automatically during the operation of the computer.

MVME187-004B The memory of a computer usually includes an internal memory and an external memory. The internal memory directly exchanges information with the arithmetic device and the controller, the capacity is small, the access speed is fast, and generally only stores those programs that are running and the data to be processed. The external memory usually exists in the form of hard disk, as an extension of the internal memory, MVME187-004B is used to store some systems must be used, but not eager to use the program and data, these programs and data must be transferred into the memory to be able to execute. External memory is usually slow to read data, but has a large capacity and can hold a lot of information for a long time.

A single-board Computer (SBC) is a complete computer built on a Single circuit board with a microprocessor, memory, input/output (I/O), and other features required for a functional computer.

The MVME187-004B single-board computer is manufactured as a demonstration or development system for use in educational systems or as an embedded computer controller. Many types of home computers or portable computers integrate all of their functions onto a single printed circuit board. Unlike desktop personal computers, single-board computers generally do not rely on expansion slots for peripheral functionality or expansion. Single-board computers are built using a variety of microprocessors. Simple designs, such as those built by computer enthusiasts, typically use static RAM and low-cost 8 - or 16-bit processors. Other types, such as blade servers, perform similarly to server computers, but in a more compact format.

【 Main Products 】

Main: world famous brand PLC.DCS system spare parts module

Foxboro: I/A Series system, FBM series, (field input/output module) sequence control, ladder logic control, accident recall processing, digital to analog conversion, input/output signal processing, data communication and processing.

Westinghouse: 1C3 series DCS system, 1X000, 5X00, KJ series, CPU, OVATION system, WDPF system, WEStation system spare parts.

Triconex(Invensys): Redundant fault-tolerant control system, modern fault-tolerant controller based on triple module redundancy (TMR) architecture.

Bently(Bentley) : 3500, 3300 system.

Rockwell :ICS Systems.

ABB:PM full series DCS system, IGCT high voltage inverter series, industrial robot spare parts DSQC series, INFI 90 and so on.

ABB Bailey: BRC series DCS system, PM series, DSDP/DSAO/DSTD/DSQC series, etc.

Allen-Bradley: 1576/1785/1771/1757 series system, 1336$/1336F series inverter, 1394 series servo controller, MVI full series, touch screen 2711 series, etc.

Yokogawa :CPU, etc.

Honeywell(Honeywell): TK/TC systems, etc.