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ControlLogix Controllers

Bulletin 1756 ControlLogix Programmable Automation Controllers

Bulletin 1756 ControlLogix® and GuardLogix® Controllers include a range of controllers to suit standard, safety, redundant and extreme environment applications. With memory options ranging 2...32 MB, these controllers provide fast processing in a single integrated solution for all types of applications. Network options include EtherNet/IP™,ControlNet™, DeviceNet™, DH+™, Remote I/O, RS-232, and many third-party process and device networks.

 

ControlLogix L7 Controllers Offer Improved Performance for Process, Discrete and Motion Applications

1756 L7x ControlLogix ControllerThe new ControlLogix® L7 Programmable Automation Controllers (PACs) provide advanced memory, speed and processing capabilities for a wide range of control demands, from high-performance logic and motion to information-intensive process applications. The new controllers also leverage the single design environment and networking protocol of the Rockwell Automation Integrated Architecture™ system.

ControlLogix L7 Controller Enhancements

  • Optimized for control of high performance motion drives on EtherNet/IP™ or SERCOS™ interfaces, supporting as many as 100 axes
  • Faster dual-core custom CPU improves controller scan times
  • 1 GB secure digital card (SDRAM) provides improved data integrity and faster reads and writes than CompactFlash technology, and is rated for SIL 2 applications
  • Available in fixed memory sizes: 4 MB (1756-L72), 8 MB (1756-L73), 16 MB (1756-L74) and 32 MB (1756-L75)
  • Energy Storage Module (ESM) eliminates the need for lithium batteries
  • USB port enables faster uploads and downloads, firmware upgrades and online edits
  • On-board display provides enhanced controller diagnostics and run-time information

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ControlLogix L7 Programmable Automation Controllers Product Profile [PDF]

Features

  • Communicates over EtherNet/IP™, ControlNet™, DeviceNet™, DH+™, Remote I/O, RS-232 and many third-party process and device networks
  • Supports multiple controllers in the same chassis, with each one operating independently

Products

1756 ControLogix® Standard Controllers

  • Memory options ranging 2…32 MB
  • Full controller redundancy
  • Integrated SERCOS™ and analog motion
  • Relay ladder logic, structured text, function block and SFC programming
  • Integrates with 1756 ControlLogix I/O modules

1756 ControlLogix Extreme Environment Controllers

  • Same functionality as standard ControlLogix controllers
  • Designed for environments with -25...70 °C (-13...158 °F) temperature range
  • Operates in environments with -20...70 °C (-4...158 °F) temperature range when used with FLEX™ I/O-XT modules

1756 GuardLogix® Safety Controllers

  • Integrated safety and motion control in the same chassis
  • TÜV-certified for SIL 2 functional safety
  • Memory options ranging from 750 KB to 8 MB
  • Supports redundancy for safety-related functions
  • Requires a 1756-L6xS controller and 1756-LSP safety partner to achieve SIL 3 certification
  • Requires no setup for automatically-configured safety partner
  • Integrates with 1791 DS/ES CompactBlock™ Guard I/O™ modules

Certifications

  • ControlLogix Standard Controllers: c-UL-us, CE, CSA, C-Tick, FM, ATEX, TÜV, ULH (L7x controllers only) and CULH (L7x controllers only).
  • ControlLogix Extreme Environment Controllers: c-UL-us, CE, C-Tick, ATEX.
  • GuardLogix Safety Controllers: UL, c-UL-us, CE, CSA, C-Tick, FM, TÜV.

Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.

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Rockwell Automation Integrated Architecture Solutions provide the foundation to drive plantwide optimization efficiently and effectively, enabling you to respond competitively to the economy and changes in consumer demand.

Our Extreme Environment (XT) system [PDF] includes control, communication, and distributed I/O products that extend the benefits of the Rockwell Automation Integrated Architecture™ to applications with more demanding environmental conditions.

Software

Use RSLogix 5000 programming software from Rockwell Software® to design and configure your ControlLogix® or GuardLogix® system.

The controllers and modules you select, along with your network configuration, determine what additional software packages you need to configure and program your system. Additional required software may include RSNetWorx configuration software and RSLinx communication software.

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Additional software products are available from Rockwell Software.

Build This Catalog Number

Build or verify a catalog number, and get information and CAD drawings for these products.

Configuration & Selection Tools

Other Resources

  • RSLogix 5000 Start Pages — Use these videos to quickly learn important tasks in RSLogix™ 5000.
  • Knowledgebase — Visit our online resource for technical information, support chat and forums, software updates, and product safety advisories/notices.

Accessories

We offer a variety of accessories for your ControlLogix® Control Systems, including: