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HN800+VBX01B ABB 總線拓展控制器是 ABB 提供的一種用于工業(yè)控制系統(tǒng)的設(shè)備。根據(jù)搜索結(jié)果，以下是一些關(guān)于 VBX01B ABB 總線拓展控制器的關(guān)鍵信息：

型號：VBX01BA，這是 ABB 控制系統(tǒng)附件的型號之一。

品牌：ABB，一個知名的工業(yè)自動化和控制系統(tǒng)制造商。

產(chǎn)品尺寸：產(chǎn)品凈深/長度為 180 毫米，產(chǎn)品凈高為 80 毫米，產(chǎn)品凈寬為 160 毫米。

產(chǎn)品描述：HN800/CW800 總線擴展器，垂直柱，連接到 HN800 設(shè)備柱的底部并帶有保形涂層。

功能：總線擴展器是定制的 RS485 總線代理，與市面上常見的 RS485 集線器不同，它采用 4 物理串口 CPU，通過軟件實現(xiàn)不同串口之間的數(shù)據(jù)交換。

應用場景：在實際工程中，經(jīng)常會遇到多個設(shè)備同時讀寫一個 485 端口的情況，例如多個電腦需要同時抄同一電表，或者本地 PLC 和遠程電腦需要同時采集 CTU 數(shù)據(jù)。VBX01BA 總線擴展器能夠自動按訪問順序排隊，將結(jié)果反饋給請求端口，解決多個設(shè)備訪問同一 485 口產(chǎn)生的端口沖突問題。

The HN800+VBX01B ABB Bus Expansion Controller is a device supplied by ABB for industrial control systems. Based on the search results, here are some key information about the VBX01B ABB Bus expansion controller:

Model: VBX01BA, this is one of the models of ABB control system accessories.

Brand: ABB, a well-known manufacturer of industrial automation and control systems.

Product size: the net depth/length of the product is 180 mm, the net height of the product is 80 mm, the net width of the product is 160 mm.

Description: HN800/CW800 bus expander, vertical column, attached to the bottom of the HN800 device column and with conformal coating.

Function: Bus extender is a customized RS485 bus agent, and the market common RS485 hub is different, it uses 4 physical serial port CPU, through the software to achieve data exchange between different serial ports.

Application scenario: In practical engineering, it is often encountered that multiple devices read and write a 485 port at the same time, such as multiple computers need to read the same electricity meter at the same time, or local PLC and remote computer need to collect CTU data at the same time. VBX01BA bus extender can automatically queue in order of access and feedback the result to the request port to solve the problem of port conflict caused by multiple devices accessing the same 485 port.