8/11/2019 1756-pp015_-en-p[1].pdf

1/1

ControlLogix ProgrammableAutomation Controllers

1756-L71, L72, L73, L74, L75

The latest addition to the ControlLogix family of controllers

is designed for improved performance. The new controllers

provide the memory, speed and processing capabilities to

meet the demands of basic plant oor applications to high

performance process and motion applications.

As part of the Rockwell Automation Integrated Architecture

system, these new controllers use the same programming

software, network protocol and information capabilities

as ControlLogix L6 series controllers, providing a common

control engine with a common development environment

for all control disciplines.

Improved Performance

Depending on your application, you evaluate performanceusing different criteria. ControlLogix 1756-L7 series controllersoffer specific improvements for specific applications.

For process applications,the new ControlLogix controllerssignificantly improve the amount of information that canbe exchanged between the control and supervisory layers,and offer a significant improvement in the performance ofredundant control applications. The 1756-L7 series controllersalso offer increased capacity, allowing more control strategies

to be executed in each task.

For motion applications,the 1756-L7 series controllersprovide high-speed motion command and axis trajectoryplanner execution making it the right solution for complex, highperformance motion applications. The controllers have beenoptimized for control of high performance motion drives onEtherNet/IP or SERCOS interface and are capable of supportingas many as 100 axes.

For discrete applications,the new ControlLogix controllerssignificantly improve controller scan times using a new fasterdual core custom CPU. They offer improved communicationrates for new Rockwell Automation Ethernet communicationmodules and provide faster cross-loading for redundancysystems.

Memory Options

The new ControlLogix controllers use enhanced SDRAMmemory technology and are available in the following fixedmemory sizes: 2 Mb (1756-L71), 4Mb (1756-L72), 8Mb (1756-L73),16Mb (1756-L74) and 32Mb (1756-L75).

The optional and removable Secure Digital non-volatile memoryprovides faster reads and writes and better data integrity thanthe previous CompactFlash technology and is now rated for usein SIL 2 applications. A 1Gb Secure Digital (SD) card is includedwith each 1756-L7 series controller.

Power and Diagnostic Capabilities

With the launch of these new controllers, we also introduce theEnergy Storage Module (ESM) which ships with each controller.The ESM eliminates the need for lithium batteries as well asthe maintenance and environmental issues associated with thetransport and disposal of lithium batteries.

The new controllers also feature an on-board display providingenhanced controller diagnostics and run-time information.

Environmental Specications and Certications

Temperature Operating: 060C, 33140F / Storage: -4085 C, -40185 F

Relative

Humidity 595% non-condensingVibration 2g at 10500Hz

Shock Operating: 30g / Non-operating: 50g

Certications UL, c-UL-us, CE, ULH, CSA, C-Tick, FM, ATEX, TV, CULH.See the Product Certication link at www.ab.com for Declarationsof Conformity, Certicates, and other certication details.

Publicati on 1756-PP015C-EN-P June 2012 Copyright 2012 Rockwe ll Automatio n, Inc. All Rights Reserve d. Printed in USA.

Supersedes Publication 1756-PP015A March 2010