>>>>>型號:PM891 單片單元 可靠性和簡單的故障診斷程序
【功能描述】
PM891處理器是一個單片單元，配備電源、CPU板和單元終端。該裝置包含微處理器和RAM存儲器、實時時鐘、LED指示燈、INIT按鈕和安全數(shù)字接口。PM891不包含任何內(nèi)置電池PM891有兩個用于連接到控制網(wǎng)絡(luò)的RJ45以太網(wǎng)端口（CN1、CN2）和一個RJ45串行端口（COM4）。COM4端口是隔離的，用于配置工具。PM891支持CPU冗余以實現(xiàn)更高的可用性（CPU、CEX總線、通信接口和S800 I/O）。
通信擴展總線（CEX-Bus）安裝在本機上。CEX-Bus用于擴展帶有通信接口單元的板載通信端口?？梢栽贑EX-Bus上使用冗余通信接口。CEX-Bus互連單元BC810用于通過將CEX-Bus劃分為單獨的段來提高其可用性。該單元的光學(xué)模塊總線可用于連接七個S800 I/O單元集群（每個集群最多包含12個單元）。每個PM891都提供唯一的以太網(wǎng)地址，為設(shè)備提供硬件標(biāo)識。
特點和優(yōu)勢
可靠性和簡單的故障診斷程序
模塊化，允許逐步擴展
IP20防護等級，無需外殼
控制器具有完整的EMC認證
高性能和大容量應(yīng)用程序內(nèi)存
使用一對BC810的分段式CEX總線
內(nèi)置冗余以太網(wǎng)通信端口
>>>>>型號:PM891 單片單元 可靠性和簡單的故障診斷程序
【英文介紹】
ABB PM866K01 3BSE050198R1 controller unit
Features and advantages
ISA Security Certification - Learn more
Reliable and simple troubleshooting program
Modular, allowing for gradual expansion
IP20 protection, no case required
The controller can be configured with the 800xA control builder
The controller is fully certified by EMC
The cex bus uses a pair of BC810 and BC820
Hardware based on the best communication connectivity standards (Ethernet, PROFIBUS DP, etc.)
Built-in redundant Ethernet communication port
The Control Unit is responsible for the flow management of the program. Just like the logistics distribution department in a factory, the control unit is the command and control center of the entire CPU, It is composed of three parts: Instruction Register IR(Instruction Register), instruction Decoder ID(Instruction Decoder) and Operation Controller OC(Operation Controller), which is extremely important to coordinate the orderly work of the whole computer. The control unit can be part of the CPU or installed outside the CPU
>>>>>型號:PM891 單片單元 可靠性和簡單的故障診斷程序
