Allen-Bradley 1756-L73K ControlLogix 5570 series controller

Its current draw ratings are 5 milliamps and 800 milliamps at 1.2 Volts DC and 5.1 Volts DC, respectively. This unit can perform up to 32 controller tasks, run up to 100 programs, and makeup to 500 connections that are used for Ethernet input/output and Ethernet messaging. It has event triggers for all its tasks and it ships with an Allen-Bradley 1784-SD1 1-gigabyte non-volatile SD card. Its approximate weight is 0.25 kilograms.

Technical specifications for 1756-L73K

ManufacturerRockwell Automation

BrandAllen-Bradley

Part Number/Catalog No.1756-L73K

SeriesControlLogix

Module TypeProcessor Module

I-O Memory0.98 MB

User Memory8 MB

Maximum I-O128,000

Maximum Analog I-O4,000

Maximum Digital I-O128,000

Current Draw (1.2 Volts DC)5 milliamps

Current Draw (5.1 Volts DC)800 milliamps

Power Dissipation2.5 Watts

Thermal Dissipation8.5 BTU per hour

Isolation Voltage30 Volts Continuous

EnclosureNone (Open-Style)

Like all Allen-Bradley ControlLogix controllers, the 1756-L73K controller monitors and controls input/output across the ControlLogix backplane or over the network. Its communication port is a USB 2.0 port that has a speed of 12 megabits per second. It supports a variety of communication network options such as the EtherNet/IP, ControlNet, DeviceNet, SynchLink, and the Data Highway Plus networks. The programming languages that can be used on this module include the Relay Ladder, Function Block Diagram, Structured Text, and Sequential Function Chart (SFC) languages. The 1756-L73K ControlLogix controller is equipped with an energy storage module and its conformal coating provides additional environmental protection. Its scrolling LED display provides real-time status information of the controller and other I/O devices in a ControlLogix 5570 system. This module can be installed in any 1-inch-wide slot of a ControlLogix chassis alongside other controllers.

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