1785-LT/B Allen-Bradley

1785-LT/B Allen-Bradley Central unit

Product  Description：

Allen-Bradley Central Units, manufactured by Rockwell Automation, serve as the primary central processing unit (CPU) and intelligence core for Programmable Automation Controller (PAC) and Programmable Logic Controller (PLC) systems, including the ControlLogix, CompactLogix, and Micro800 product lines. These central units are designed to execute complex real-time control routines, process high-speed logical instructions, manage system memory, and orchestrate synchronous communication across connected input/output (I/O) modules and motion axes.

Acting as the hub of the Integrated Architecture environment, Allen-Bradley CPUs feature multi-tasking operating systems, onboard communication ports such as dual EtherNet/IP, and dedicated motion control capabilities over EtherNet/IP networks. They handle discrete logic, process loops, safety functions, and high-speed motion in a single integrated control platform, eliminating the need for separate dedicated controllers.

Product Parameters

• Processing Architecture: High-performance single-core and multi-core processors operating on real-time execution engines.

• Memory Capacities: User application memory ranging from 128 KB on micro controllers up to 40 MB or more on high-end ControlLogix central units.

• Communication Interfaces: Onboard dual-port EtherNet/IP supporting Device Level Ring (DLR) topologies, USB programming ports, and legacy support for ControlNet or DH-Plus via interface modules.

• Execution Speed: Sub-millisecond scan times with high-speed boolean instruction processing under 10 nanoseconds per instruction on advanced processors.

• Motion Control Support: Up to 128 axes of integrated motion over EtherNet/IP depending on CPU model selection.

• Redundancy Capabilities: High-availability bumpless CPU redundancy options supported on ControlLogix central units.

• Energy Storage: Energy Storage Modules (ESM) eliminating the need for lithium backup batteries during power loss memory preservation.

• Storage Expansion: Secure Digital (SD) card slot for non-volatile application storage, firmware backing, and data logging.

• Operating Temperature Range: 0°C to 60°C for standard modules, with extended temperature models available from -25°C to 70°C.

Product Advantages

• Unified Control Engine: Single programming environment across discrete logic, batch processing, continuous process control, motion control, and functional safety routines.

• High Network Throughput: Integrated dual EtherNet/IP ports enable high-capacity data exchange, remote I/O scanning, and seamless enterprise network connection without external communication cards.

• Scalable System Architecture: Compatible across a wide spectrum of control hardware, allowing seamless scaling from small machinery applications to plant-wide process systems.

• Simplified Maintenance: Energy storage technology removes battery maintenance schedules, while removable SD cards permit rapid CPU replacement without a programming computer.

• Integrated Security and Safety: Built-in controller security features, including role-based access control, firmware digital signatures, and available SIL 2 or SIL 3 TÜV-certified safety execution.

Important Precautions

• Enclosure and Environmental Requirements: Always install the central unit in a clean, dry, NEMA or IP-rated enclosure to prevent exposure to conductive dust, corrosive gases, and extreme humidity.

• Firmware Version Alignment: Verify that the CPU firmware major release matches the version of Studio 5000 Logix Designer or Connected Components Workbench software being used for project deployment.

• Power Quality and Grounding: Ensure proper chassis grounding and stable DC power supply connection, as voltage sags or electrical noise spikes can cause unexpected controller resets or fault states.

• Electrostatic Discharge Protection: Always wear a grounded ESD wristband when handling the central unit hardware or inserting expansion cards to prevent damage to sensitive microchips.

• Network Traffic Isolation: Use segmented networks or VLANs to isolate industrial control communication from general IT networks to prevent network overload on CPU network interfaces.

Product Applications

• Automotive Manufacturing: Managing complete assembly line sequencing, robot cell coordination, high-speed conveyor systems, and stamping press operations.

• Food and Beverage Processing: Controlling automated batching, pasteurization, packaging machinery, bottling lines, and clean-in-place (CIP) systems.

• Material Handling and Warehousing: Directing automated storage and retrieval systems (ASRS), high-speed sorters, palletizers, and AGV fleet interfaces.

• Oil, Gas, and Petrochemical: Executing process control, pipeline pumping monitoring, wellhead automation, and safety instrumented systems (SIS).

• Water and Wastewater Management: Coordinating lift station pumps, filtration plant processes, chemical dosing systems, and remote telemetry outstations.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

Please make an inquiry for more models：

Allen-Bradley 2094-BM03-S

Allen-Bradley 802A-B27P2-S10

Allen-Bradley MPL-A310P-SJ74AA

Allen-Bradley 22F-D1P5N113

Allen-Bradley 100-E09KJ10

Allen-Bradley 1756-L74K

Allen-Bradley 1756-L84ESK

Allen-Bradley 1756-RM2K

Allen-Bradley 2098-DSD-HV050X

Allen-Bradley 2198-C1004-ERS

Allen-Bradley 100-K12*10

Allen-Bradley 800H-TFRXT6

Allen-Bradley 1769-OW8I

Allen-Bradley 1756-OB16I

Allen-Bradley 1440-TPR06-00RE

Allen-Bradley 1440-VSE02-01RA

Allen-Bradley 2711P-T6C208

Allen-Bradley 1756-L84EK

Allen-Bradley 1756-L84E

Allen-Bradley 1783-HMS4C4CGN

Allen-Bradley 1783-BMS10CGL

Allen-Bradley 700-HC22Z24-4

Allen-Bradley 1771-OFE3

Allen-Bradley 1756-L8SP

Allen-Bradley 2094-PRF

Allen-Bradley 2711P-RP9D

Allen-Bradley 2711P-B6C20D

Allen-Bradley 1794-CE3

Allen-Bradley 1784-CP10

Allen-Bradley 1771-P7

Allen-Bradley 1791DS-IB4XOW4

Allen-Bradley 100-D630

Allen-Bradley 1492-AIFM8-F-5

Allen-Bradley 1761-L32BBB

Allen-Bradley 2090-XXLF-375B

Allen-Bradley 2094-PRS8

Allen-Bradley 2711P-RP8A

Allen-Bradley 2711P-T7C4D1

Allen-Bradley 2711P-B7C4D8

JUSTWELL PTE. LTD. sells new and discontinued products, and purchases such specialty products through independent channels. JUSTWELL PTE. LTD. is not an authorized distributor, distributor, or representative of the featured products on this website. All product names/images, trademarks, brands, and logos used on this website are the property of their respective owners. Product descriptions, descriptions, or sales with these name images, trademarks, brands, and logos are for identification purposes only and do not imply any association or authorization with any rights holders.

This article is from the official website of JUSTWELL PTE. LTD. If reprinted, please attach this link: https://justwellltd.com .com

JUSTWELL PTE. LTD

Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.