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  • Logix5000 Controllers Design Considerations Catalog Numbers 1756 ControlLogix, 1756 GuardLogix, 1768 CompactLogix, 1768 Compact GuardLogix, 1769 CompactLogix, 1789 SoftLogix, CompactLogix 5370

    Reference Manual

  • Important User Information

    Read this document and the documents listed in the additional resources section about installation, configuration, and operation of this equipment before you install, configure, operate, or maintain this product. Users are required to familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws, and standards.

    Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are required to be carried out by suitably trained personnel in accordance with applicable code of practice.

    If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

    In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

    The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.

    No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.

    Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited.

    Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

    Labels may also be on or inside the equipment to provide specific precautions.

    Allen-Bradley, CompactBlock Guard I/O, CompactLogix, ControlFLASH, ControlLogix, DH+, FactoryTalk, FLEX, GuardLogix, Kinetix, Logix5000, MicroLogix, PanelBuilder, PanelView, PhaseManager, PLC-2, PLC-3, PLC-5, POINT I/O, POINT Guard I/O, Rockwell Automation, Rockwell Software, RSBizWare, RSFieldbus, RSLinx, RSLogix 5000, RSNetWorx, RSView, SLC, SoftLogix, Stratix, Stratix 2000, Stratix 5700, Stratix 6000, Stratix 8000, Stratix 8300, Studio 5000, Studio 5000 Logix Designer, SynchLink, and Ultra are trademarks of Rockwell Automation, Inc.

    ControlNet, DeviceNet, and EtherNet/IP are trademarks of ODVA, Inc.

    Trademarks not belonging to Rockwell Automation are property of their respective companies.

    WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.

    ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.

    IMPORTANT Identifies information that is critical for successful application and understanding of the product.

    SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.

    BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous temperatures.

    ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).

  • Logix5000 Controller Comparison - CompactLogix, ControlLogix, GuardLogix

    Table 1 - CompactLogix, ControlLogix, and GuardLogix Characteristics

    Characteristic CompactLogix™ 1769-L30ER, 1769-L30ER-NSE, 1769-L30ERM, 1769-L33ER, 1769-L33ERM, 1769-L36ERM

    CompactLogix 1769-L24ER-BB1B, 1769-L24ER-QBFC1B, 1769-L27ERM-QBFC1B

    CompactLogix 1769-L16ER-BB1B, 1769-L18ER-BB1B, 1769-L18ERM-BB1B

    ControlLogix® 1756-L71, 1756-L72, 1756-L73, 1756-L74, 1756-L75, 1756-L73XT

    GuardLogix® 1756-L72S, 1756-L73S, 1756-L73SXT

    Controller tasks: • Continuous • Periodic • Event

    32 • 100 programs/task,

    Version 23 and earlier • 1000 programs/task, max:

    Version 24 or later

    32 • 100 programs/task, Version

    23 and earlier • 1000 programs/task, max:

    Version 24 or later

    32 • 100 programs/task, Version 23 and earlier • 1000 programs/task, max: Version 24 or

    later

    32 • 100 programs/task, Version 23 and earlier • 1000 programs/task, max: Version 24 or later

    Event tasks Consumed tag, EVENT instruction, axis, and motion event triggers

    Consumed tag, EVENT instruction, axis, and m25- 7.50otion event triggers

    Consumed tag, EVENT instruction, axis, and motion event triggers; this controller also executes an Event task from its embedded I/O modules

    All event triggers

    User memory • 1769-L30ER, 1769-L30ER-NSE, 1769-L30ERM: 1MB

    • 1769-L33ER, 1769-L33ERM: 2 MB

    • 1769-L36ERM: 3 MB

    • 1769-L24ER: 750 KB • 1769-L27ERM: 1 MB

    • 1769-L16ER: 384 KB • 1769-L18ER,

    1769-L18ERM: 512 KB

    • 1756-L71: 2 MB • 1756-L72: 4 MB • 1756-L72S, 1756-L73SXT: 4 MB + 2 MB safety • 1756-L73, 1756-L73XT: 8 MB • 1756-L73S: 8 MB + 4 MB safety • 1756-L74: 16 MB • 1756-L75: 32 MB

    Memory card Secure Digital Secure Digital Secure Digital Secure Digital

    Built-in ports 2 EtherNet/IP and 1 USB 2 EtherNet/IP and 1 USB 2 EtherNet/IP and 1 USB 1 USB

    Communication options • Dual EtherNet/IP ports • DeviceNet

    • Dual EtherNet/IP ports • DeviceNet

    • Dual EtherNet/IP ports • EtherNet/IP (standard and safety) • ControlNet (standard and safety) • DeviceNet (standard and safety) • DH+™ • Remote I/O • SynchLink™

    Controller connections 256 256 256 500

    Network connections • 1769-L30ER, 1769-L30ER-NSE, 1769- L30ERM: 16

    • 1769-L33ER, 1769-L33ERM: 32

    • 1769-L36ERM: 48

    • 1769-L24ER-BB1B, 1769-L24ER-QBFC1B, 8

    • 1769-L27ERM-QBFC1B, 16

    • 1769-L16ER-BB1B: 4 • 1769-L18ER-BB1B, 1769-L18ERM-BB1B: 8

    Per module: • 128 ControlNet (CN2/B) • 40 ControlNet (CNB) • 256 EtherNet/IP; 128 TCP (EN2x) • 128 EtherNet/IP; 64 TCP (ENBT)

    Controller redundancy — — — Supported with restrictions

    Integrated motion 1769-L30ERM, 1769-L33ERM, and 1769-L36ERM support integrated motion on an EtherNet/IP network

    1769-L27ERM-QBFC1B supports integrated motion on an EtherNet/IP network

    1769-L18ERM-BB1B supports integrated motion on an EtherNet/IP network

    Integrated motion on an EtherNet/IP network SERCOS interface Analog options

    Programming languages • • Relay ladder • • Structured text • • Function block • • SFC

    • • Relay ladder • • Structured text • • Function block • • SFC

    • • Relay ladder • • Structured text • • Function block • • SFC

    • Standard task: all languages • Safety task: relay ladder, safety application

    instructions

    Rockwell Automation Publication 1756-RM094I-EN-P - September 2015 3

  • Chapter 1

    Notes:

    4 Rockwell Automation Publication 1756-RM094I-EN-P - September 2015

  • Summary of Changes

    This manual contains new and updated information. Changes throughout this revision are marked by change bars, as shown to the right of this paragraph.

    Topic Page

    Logix5000™ Controller Comparison Table: • Removed 1756-L6x, 1769-L23x, 1769-L3x, and 1769-L4x because they are no longer supported. • Removed SoftLogix™ 5800 because the controller does not support the features in Studio 5000

    Logix Designer Version® 24, but the controller does support Emulator in Version 24. • Changed 1756-L72SXT to 1756-L73SXT.

    3

    Description of Access the Module Object Feature 33

    Guidelines for Program Parameters 51

    Comparison of Program Parameters and Add-On Instructions 52

    Network Address Translation (NAT) 89

    Rockwell Automation Publication 1756-RM094I-EN-P - September 2015 5

  • Summary of Changes

    Notes:

    6 Rockwell Automation Publication 1756-RM094I-EN-P - September 2015

  • Table of Contents

    Preface Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Websites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

    Chapter 1 Logix5000 Controller Resources Estimate Memory Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

    RSLinx Software Use of Logix5000 Controller Memory . . . . . . . . . 16 Compare PLC/SLC MEMORY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

    Controller Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Determine Total Connection Requirements . . . . . . . . . . . . . . . . . . . . . . . 18 CIP Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Controller Mode. . . . . . . . . . . . . . . . . . . .

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