1756-L73是Allen-Bradley ControlLogix產(chǎn)品線的標(biāo)準(zhǔn)控制器型號，屬于Logix 5570產(chǎn)品類別，是一種可編程自動化控制器（PAC），可用于控制工廠中的大型應(yīng)用或過程自動化應(yīng)用。
1756-L73控制器能夠連接128，000個輸入和輸出信號以及4000個模擬輸入和輸出信號，可以支持單工配置和高可用性（冗余）控制器配置，以提高系統(tǒng)可用性。
可編程自動化控制器（Programmable Automation Controller，PAC）是將可編程控制器（PLC）可靠、堅固、易于使用等特性與工業(yè)電腦（IPC）強(qiáng)大的計算能力、通信處理、廣泛的第三方軟件最佳地結(jié)合在一起的多功能工業(yè)用自動化控制器。
可編程自動化控制器主要具有以下特點：

抗干擾能力強(qiáng)，可靠性高；
程序簡單易學(xué)，系統(tǒng)的設(shè)計調(diào)試周期短；
安裝簡單，維修方便；
采用模塊化結(jié)構(gòu)，體積小，重量輕；
豐富的I/O接口模塊，擴(kuò)展能力強(qiáng)。

1756-L73

The 1756-L73, a standard controller model in the Allen-Bradley ControlLogix product line and part of the Logix 5570 product category, is a programmable automation controller (PAC) that can be used to control large applications in factories or process automation applications.
The 1756-L73 controller is capable of connecting 128,000 input and output signals and 4,000 analog input and output signals, and can support simplex and high availability (redundant) controller configurations to improve system availability.
Programmable Automation Controller (Programmable Automation Controller, PAC is a multifunctional industrial automation controller that optimally combines the reliability, robustness, and ease of use of programmable controller (PLC) with the powerful computing power, communication processing, and extensive third-party software of industrial computer (IPC).
Programmable automation controller mainly has the following characteristics:

Strong anti-interference ability, high reliability;
The program is simple and easy to learn, and the design and debugging cycle of the system is short;
Simple installation, easy maintenance;
Modular structure, small size, light weight;
Rich I/O interface modules with strong expansion capability.

1756-L73