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      1756-L1M2

      ControlLogix5550 Controller
      In Stock
      Ships by Thursday, September 17
      Fast Shipping Available

      Product Describe：

      Allen-Bradley 1756-L1M2 is a ControlLogix5550 Controller for the ControlLogix5550 platform. It executes user logic, exchanges chassis I/O data and coordinates communications through installed ControlLogix modules.

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      Technical specifications Information Technical notes FAQ

      Technical specifications for 1756-L1M2

      Technical specifications for 1756-L1M2

      • Manufacturer:
        Allen-Bradley
      • Product Category:
        PLC Systems
      • Spare Part Number:
        1756-L1M2
      • Estimated shipping dimensions:
        3.5x13.8x14.5cm
      • Weight:
        0.4 kg
      • Tariff Code:
        8537101190
      • Counliy of origin:
        USA
      • Data and logic memory:
        1 MB
      • I/O memory:
        150 KB
      • Nonvolatile memory:
        Not supported
      • Backplane current at 5.1 V DC:
        1.05 A
      • Backplane current at 24 V DC:
        20 mA
      • Power dissipation:
        4.8 W
      • Thermal dissipation:
        16.4 BTU/h
      • Operating temperature:
        0-60 C
      • Storage temperature:
        -40-85 C
      • Relative humidity:
        5-95%, noncondensing
      • Operating shock:
        30 g, 11 ms
      • Nonoperating shock:
        50 g, 11 ms
      • Vibration:
        2 g at 10-500 Hz
      • Programming cable:
        1756-CP3 or 1747-CP3
      View as PDF Ask for Quote

      Information

      Information

      Overview Manuals Common Applications Product Precautions
      Allen-Bradley 1756-L1M2 is a ControlLogix5550 Controller for the ControlLogix5550 platform. It executes user logic, exchanges chassis I/O data and coordinates communications through installed ControlLogix modules.
      • Owns the chassis control task and scheduled program execution
      • Produces and consumes data through configured communication modules
      • Coordinates local and distributed I/O update paths
      • Reports controller and chassis diagnostic status to engineering tools

      1756-L1M2 operates with 1756 ControlLogix chassis, compatible 1756 power supply, communication modules, RSLogix 5000 project.
      Typical engineered duties include ControlLogix5550 installed-base control, 1756-L1M2 controller migration planning, 1756-L1M2 shutdown replacement, 1756-L1M2 program recovery and validation.

      Important Notice: A 1756-L1M2 replacement requires an engineered match of controller series, firmware, memory, project revision, chassis slot and communication dependencies before the machine is released.

      Apter Power 1756-L1M2 Manuals and Guides

      Important Notice: The first document is an Apter Power 1756-L1M2 model-specific technical reference. The second is a distinct document for installation, configuration or system engineering.

      1756-L1M2 ControlLogix5550 installed-base control
      Owns the chassis control task and scheduled program execution
      1756-L1M2 1756-L1M2 controller migration planning
      Produces and consumes data through configured communication modules
      1756-L1M2 1756-L1M2 shutdown replacement
      Coordinates local and distributed I/O update paths
      1756-L1M2 1756-L1M2 program recovery and validation
      Reports controller and chassis diagnostic status to engineering tools
      Read the applicable Allen-Bradley installation instructions before work. Verify 1756-L1M2 and the installed-system configuration.
      1
      Back up and verify the controller project before removal.
      2
      Confirm chassis slot, controller series and memory option from the nameplate.
      3
      Remove and insert the controller only under the installation conditions stated by Rockwell Automation.
      4
      After download, verify I/O ownership, produced/consumed tags and all communications.
      5
      Commission 1756-L1M2 under controlled conditions and retain the completed functional-test record before release.

      Technical notes

      Technical notes

      Use the Rockwell Automation 1756 controller installation sequence for 1756-L1M2. Preserve the validated project and confirm chassis communication before placing outputs under program control.

      FAQS

      • Which chassis accepts 1756-L1M2?
        Install it in a compatible 1756 ControlLogix chassis with the approved power supply and keyed surrounding modules.
      • How should the project be prepared before replacing 1756-L1M2?
        Archive the online project, firmware information, controller properties, I/O tree and communication settings before shutdown.
      • What memory must be compared for 1756-L1M2?
        Confirm the installed catalog number against 1 MB of data/logic memory and 150 KB of I/O memory.
      • How is communication restored after fitting 1756-L1M2?
        Set the approved network path, download the validated project and confirm each configured bridge and I/O connection.
      • What power check applies to 1756-L1M2?
        Include its published backplane demand of 1.05 A at 5.1 V DC and 20 mA at 24 V DC in the chassis loading review.
      • How should 1756-L1M2 be commissioned?
        Verify controller mode, task execution, I/O ownership, inhibited modules, produced/consumed tags and output permissives.
      • Can a different ControlLogix controller replace 1756-L1M2 directly?
        Not without a migration review covering firmware, instructions, communication limits, memory and project conversion.
      • What maintenance records are needed for 1756-L1M2?
        Record the serial/revision data, firmware, project checksum, battery or memory condition, chassis diagnostics and final functional test.
      Trusted by 5,000+ plants worldwide | Backed by our vast inventory of top-tier control parts, modules and cards, fast shipments are dispatched to cover your urgent needs. ABOUT US >>
      Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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