1756-L73  控制器

Allen-Bradley 1756-L73 是一款 ControlLogix 处理器模块，属于 Logix 5570 产品类别。这是一个可编程自动化控制器（PAC），兼容用于控制工厂或过程自动化应用中的大型应用。它支持单工配置和高可用性（冗余）控制器配置，以提高系统可用性。

1756-L73 能够连接 128，000 个输入和输出信号以及 4000 个模拟输入和输出信号。它可以实现本地 I/O 配置，其中 I/O 模块安装在安装控制器的同一机箱中，也可以是分布式 I/O 拓扑，其中扩展 I/O 安装在远离处理器的位置，并通过扩展通信总线提供 I/O。该控制器支持以太网I/P、DeviceNet、ControlNet、Syncchlink，以及传统的通信协议，如Data Highway Plus（DH+），Remote I/O （RIO）和第三方协议。它也可以配置为与网关和协议转换器通信。同样，该控制器与任何Allen-Bradley包含合作伙伴ControlLogix模块兼容。

该控制器还具有集成运动功能，因为它支持SERCOS接口，模拟运动传感器和以太网I / P的运动控制。对该控制器进行编程时，适用的编程语言包括继电器梯形图、结构化文本、功能块图和顺序功能图。

Allen Bradley 1756-L73 is a ControlLogix processor module that belongs to the Logix 5570 product category. This is a Programmable Automation Controller (PAC), which is compatible with large applications used to control factories or process automation applications. It supports simplex configuration and high availability (redundant) controller configuration to improve system availability.

1756-L73 can connect 128000 input and output signals as well as 4000 analog input and output signals. It can achieve local I/O configuration, where I/O modules are installed in the same chassis as the controller, or it can be a distributed I/O topology where extended I/O is installed away from the processor and provided through the extended communication bus. This controller supports Ethernet I/P, DeviceNet, ControlNet, Synchlink, as well as traditional communication protocols such as Data Highway Plus (DH+), Remote I/O (RIO), and third-party protocols. It can also be configured to communicate with gateways and protocol converters. Similarly, this controller is compatible with any Allen Bradley containing partner ControlLogix modules.

The controller also has integrated motion function as it supports SERCOS interface, simulates motion sensors, and Ethernet I/P motion control. When programming the controller, the applicable programming languages include relay ladder diagram, structured text, function block diagram, and sequential function diagram.