PLC is a registered trade mark of Allen-Bradley for decades since the first PLC in the world.

It is a classic American story. Two brothers with a knack for invention and business, but no money. Another, older man who knew talent when he saw it and wash willing to invest in that talent. Hard work, luck and inventive genius combined to build a global company. The partnership between Dr.Stanton Allen and Lynde and Harry Bradley resulted in an industrial giant that continues to provide some of the basic tools keep industry humming. The growth from a two-man operation in rented space in someone's factory to a global industrial giant is the story of an entire century.

Allen-Bradley is named after Dr. Stanton Allen and Lynde Bradley

1901 - At the age of 23, Bradley develops a carbon disk compression type of crane control.

1903 - With financial backing from his friend Dr. Allen, he incorporates the Compression Rheostat Company; Dr. Allen is named president. Lynde Bradley's younger brother Harry joins the firm.

1909 - Lynde Bradley re-establishes the company in Milwaukee, Wisconsin with a new name: Allen-Bradley He is named president.

1972 - Allen-Bradley enters the drives business by purchasing TPC Drives, Inc.

1978 - PLC, introduced by Allen-Bradley, begins revolutionizing industrial control

1979 - DataHighway, the industry’s first plant floor network, is introduced

1985 - Rockwell International purchases Allen-Bradley Company for $1.651 billion

1994 - Allen-Bradley introduces DeviceNet, which quickly becomes the industry standard for plant floor networking and software in North America.

2003 - Allen-Bradley observes 100 years of hard work and fortitude in the automation industry

     Now a day, every day you face a new challenge. On the plant floor, it’s producing consistent quality faster. Reducing parts inventories. Spending less time on training and less money on maintenance. On the top floor, it’s faster time to market. More flexible production. Zero defects.
     Automation is a tool to help you meet your challenges. At Rockwell Automation, our challenge is to make that tool much more efficient for you. Rockwell Automation Complete Automation® is the answer to increasing your productivity and flexibility, while reducing your cost of investment. We offer more than 100 years of experience in manufacturing control solutions.
     Rockwell Automation Integrated Architecture provides seamless integration of control and communication across multiple platforms – process, motion, drives, and sequential – throughout your facility. We offer Logix Platforms and I/O systems for control, Kinetix for integrated motion, NetLinx Open Network Architecture for communications, and ViewAnyWare™ for visualization. Our PLC-5®, SLC™ 500, MicroLogix™ and PICO™ controllers, along with a wide range of world-class control components, make your operation and a model of pure efficiency – shop floor to top floor – while our FactoryTalk® technologies reduce your development time and improve your plant uptime.

At the center of thousands of Allen-Bradley control solutions around the globe you'll find a PLC-5® controller. One reason: flexibility in terms of programming, networking, I/O, and choice of controllers to suit your requirements. Two: reliability, with a MTBF (Mean Time Between Failure) rating that exceeds 400,000 hours. Another One: a commitment to compatibility between the products you buy today and new products continually being introduced by Rockwell Automation. Our modular architecture, allows automated systems to grow with your needs, without your having to sacrifice capital or training investments.

When it comes to flexibility and power, the Allen-Bradley®SLC-500 family from Rockwell Automation®; is a proven solution of small logic controllers. Designed with smaller to mid-sized automation applications in mind, the SLC 500 provides powerful, reliable performance without requiring customers to pay for the unused capacity and features of a full-size PLC. The SLC family demonstrates our commitment to the highest standards of product dependability, technological innovation, and performance. Stability and uncompromising quality are the hallmarks of the SLC 500.

Main Feature
  • High-speed discrete and complex process control applications
  • Popular choice for sequential control applications
  • Economical and easy-to-use processors with broad capabilities
  • A top choice of many OEMs due to its value and flexibility
  • Field-proven reliability covering hundreds of thousands of applications
  • Advanced instruction set including indirect addressing & high-level mathematics.
Network Connectivity: EtherNet/IP (messaging and web services),
ControlNet, DeviceNet, Remote I/O, DH+, DH-485
Network Connectivity: EtherNet/IP (with messaging plus web services),
ControlNet, DeviceNet, Remote I/O, DH+

The high performance control platform for efficient plantwide control.

The high performance of the ControlLogix platform is due in part to the ControlLogix backplane which operates as a very fast NetLinx network. ControlLogix processors, I/O, and communications modules have the intelligence to act like independent nodes on that network. As a result, multiple processors, communication modules, and I/O can be mixed without restrictions. No processor is needed to perform bridging and routing of I/O, and as your system grows, the network permits distributing control to additional chassis.

Main Feature
  • Provides a modular, high performance control platform suited for sequential, process, drive, and motion control in any combination.
  • Allows you to mix multiple processors, networks, and I/O without restrictions.
  • Uses the same RSLogix™ 5000 programming environment as other Logix controllers for maximum program reusability and minimum training.
  • Connects to the NetLinx Open Network Architecture for more efficient communications and increased throughput.
  • Certified by TUV for SIL 1 and SIL 2 applications.
Network Connectivity: EtherNet/IP (I/O control & messaging), ControlNet, DeviceNet, Remote I/O, DH+, and DH485

FlexLogix is Rockwell Automation 's small to mid-range controller, which is an ideal alternative to the ControlLogix platform for certain applications , such as: standalone controller , small network linked distributed controller, small backup processor applications, specifically, ideal applications include RTU , small process , material-handling , and press control applications. FlexLogix uses the same Logix control engine and RSLogix 5000 programming software as found in other Logix platforms. FLEX I/O, the compact, DIN-rail mounted I/O found in thousands of industrial applications, is the perfect companion to this capable controller. FlexLogix supports the RSLogix 5000 function block library, making this an ideal, inexpensive multi-loop controller. FlexLogix uses NetLinx for communication to other devices on

Main Feature
  • Adds local control to FLEX™ I/O, the compact, modular DIN-rail mounted I/O system with integrated I/O interface and terminal strip, to reduce wiring.
  • Provides a distributed architecture less vulnerable to a single point of failure because control does not depend on a single master controller.
  • Reduce startup & simplify maintenance because control resides close to the machine.
  • Uses the same RSLogix 5000 programming environment as other Logix controllers for maximum program reusability and minimum training.
  • Connects to the NetLinx Open Network Architecture for more efficient communication and increased throughput.
Network Connectivity: EtherNet/IP (I/O control and messaging), ControlNet, DeviceNet, and DH-485

CompactLogix is a small, powerful Logix-based control system.

Combined with 1769 I/O, the CompactLogix platform is perfect for tackling machine-level control applications with unprecedented power and scalability. CompactLogix is ideal for systems which require standalone and system connected control over EtherNet/IP or ControlNet. Think every place you need economical, reliable control. Attractively priced, yet powerful. Small, yes. However, with a user memory ranging from 64Kb to 1.5Mb, CompactLogix offer integrated serial, EtherNet/IP or ControlNet channels, modular DeviceNet communications and local I/O capacity that can range from 8 to 30 I/O modules.

Main Feature
  • Perfect for tackling smaller, machine-level control with unprecedented power and scalability.
  • Ideal for systems that require standalone and system-connected control over EtherNet/IP.
  • Compact form factor and rackless design - compatible with the full range of 1769 Compact™ I/O products provide a truly scalable modular system.
  • Uses the same RSLogix 5000 programming software as other Logix controller for maximum program reusability and minimal training.
Network Connectivity: EtherNet/IP (I/O control and messaging), ControlNet, DeviceNet, and DH-485.

All over the globe, companies who requiring compact controllers look to the Allen-Bradley MicroLogix™ family from Rockwell Automation®. All members of the MicroLogix and SLC 500™ families share a host of commonalities – from the same architecture, instruction set and industry leading RSLogix 500™ programming software to compatible network & HMI devices. So they will always work together seamlessly within a single machine or across your entire factory. And you won’t have to completely reprogram or learn a new system as you move from level to level. Finally, all MicroLogix controllers are DIN-rail and panel mountable, as well as UL listed, C-UL Certified, and Class 1, Division 2 and CE compliant for conformity to necessary global standards.

Network Connectivity: EtherNet/IP (messaging and web services*), DeviceNet, DH-485, Modbus Master/Slave
MicroLogix 1000 Series. Small on cost. Big on capabilities.
  • Models with 10, 16, and 32 digital points.
  • High-capacity programming with a large 1K user memory.
  • 16-bit analog resolution allows precise measurement and control of process variables.
  • Fast throughput. Execution for a typical 500-instruction program is only about 1.5 ms.
  • Analog controllers with 20 digital I/O points and 5 analog I/O points offer cost-effective process and discrete control.
  • Bi-directional high-speed input at up to 6.6 kHz offers a real-time output, independent of the program scan.
  • RS-232 communication channel for simple connectivity to a personal computer, operator interface, modem, other controller, or for networking to all of these.
MicroLogix 1200 Series. Increased functionality and options.
  • Built-in PID.
  • Floating Point data file support.
  • Two built-in analog trim potentiometers.
  • Up to six digital and analog expansion modules.
  • High-speed counter with eight modes of operation.
  • Rackless design eliminates added system cost and inventory issues.
  • Feature-rich I/O functionality addresses a wide range of applications.
  • Huge 6K memory, with 4K words available for user programs and configurable 2K words for user data, allowing data elements to be selected according to specific application.
  • High-speed Pulse Train Outputs (PTO) or Pulse Width Modulated (PWM) Outputs.
  • Software keying prevents incorrect positioning of I/O modules within the system.
  • Powerful, 24- and 40-point controllers with 120V ac or 24V dc inputs, relay and high-speed MOSFET outputs, and 120-240V ac or 24V dc power.
  • Optional memory modules for program transport and back-up.
  • Optional real time clock for time-based control applications.
MicroLogix 1500 Series. More powerful. More expandable.
  • Expandable to over 256 I/O points.
  • Features a field-upgradeable flash operating system.
  • Terminal blocks are finger-safe, removable NEMA-style blocks.
  • Typical scan time is less than 1 millisecond per 1K of user program.
  • Supports up to 14K of onboard non-volatile user memory, for complex application.
  • Broad application coverage through embedded I/O and up to 16 Compact™ I/O modules.
  • Two 20 kHz high-speed counters, each with eight modes of operation, and two high speed outputs that can be configured as either 20 kHz Pulse Train Outputs (PTO) or Pulse Width Modulated (PWM) Outputs.
  • Optional memory modules for program transport and back-up.
  • Optional real time clock for time-based control applications such as lighting and HVAC.