Allen Bradley PLC Programming Services

AutomatexLab provides Allen Bradley PLC programming, troubleshooting, migration, and integration services for industrial automation systems. Whether you are building a new automated machine from scratch, upgrading aging PLC-5 hardware, or debugging a production line that keeps stopping unexpectedly, our engineers work with the full range of Rockwell Automation platforms to keep your operations running reliably.

We work with ControlLogix, CompactLogix, MicroLogix, SLC 500, and PLC-5 systems. Our services cover new program development, existing logic modifications, legacy PLC migrations, HMI and SCADA integration, and industrial network configuration. Both remote and onsite support are available.

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Why Work with us

Why Manufacturers Work With AutomatexLab

Most industrial facilities do not need a large automation department. They need engineers who understand real production environments, can work with both modern and legacy systems, and can respond quickly when something goes wrong.

Our engineers have hands-on experience with Rockwell Automation hardware and software across manufacturing, packaging, food processing, pharmaceutical, and water treatment facilities. We document everything we build so your internal team can maintain it without dependency on outside support. And when you need troubleshooting help at 2 AM during a production run, remote support is available without waiting days for an on-site visit.

Allen Bradley PLC Programming Services

New PLC Program Development

When a machine or process is being built from the ground up, the quality of the control program determines how well that machine performs for the next decade. A well-written PLC program handles normal operation cleanly, responds to faults predictably, and gives operators enough visibility to run the machine without guessing.

For new programs, we start by documenting the control sequence in plain language before writing a single line of code. This includes the startup sequence, normal run logic, emergency stop behavior, alarm handling, and interlocks that protect both the machine and the operator. We use Ladder Logic for most machine control applications because it is readable by maintenance technicians, and Structured Text or Function Block Diagram where the logic benefits from it, such as PID loops, recipe management, or complex batch sequences.

Existing Program Modifications

Production requirements change. A packaging line originally built to run one product size gets asked to handle three. A conveyor system gets extended by 200 feet. A mixing process needs a new recipe added. In each case, the existing PLC program needs to be modified without disrupting the parts that already work.

Modification work is more demanding than new development in some ways because you are working inside a system that is already running production. We review the existing program before touching anything, map out the changes, and test offline where possible before going live. Common modification projects include adding new I/O for additional equipment, changing cycle times or speed setpoints to improve throughput, adding energy-saving logic that powers down equipment during idle periods, and integrating safety interlocks that were not part of the original design.

PLC Troubleshooting Services

When a machine stops unexpectedly, the priority is getting it running again. The second priority is understanding why it stopped so it does not happen again.
Common problems we troubleshoot include communication faults between the PLC and remote I/O, false fault conditions caused by noise on analog inputs, timer and counter logic that behaves correctly in isolation but causes problems in sequence, program errors introduced during previous modifications, and hardware failures that cause intermittent rather than consistent faults.
Remote troubleshooting resolves a large percentage of issues without requiring an on-site visit. When the engineer can see the live program online, watch tag values in real time, and check the fault log, most communication and software problems can be diagnosed and corrected remotely. For hardware failures or complex mechanical issues with a control system component, on-site support is available.

PLC Migration and Upgrades

PLC-5 systems were workhorses, but most of them are now 20 to 30 years old. Spare parts are increasingly difficult to source, and the older programming software does not run well on modern operating systems. When a PLC-5 processor fails, getting the machine back online can mean hunting down used parts and hoping the backup program file is current.
Migration to ControlLogix solves these problems. The hardware is current, spare parts are readily available, and Studio 5000 Logix Designer runs on modern Windows. The migration process involves converting the existing program logic to the ControlLogix tag-based structure, updating I/O addressing, replacing the physical hardware, and validating the system before returning it to production. We retain the operational behavior of the original program while taking advantage of the improved diagnostics and communication features the newer platform offers.
SLC 500 to CompactLogix Upgrade
SLC 500 systems are still common in smaller machines and standalone automation cells. The platform is officially discontinued, which means no new hardware and shrinking support from Rockwell. CompactLogix is the natural replacement. It handles the same types of applications, fits in similar panel spaces, and runs Studio 5000 instead of RSLogix 500. The upgrade also opens up EtherNet/IP connectivity that many SLC systems never had, making it practical to connect these machines to plant-level monitoring and MES systems.
MicroLogix Modernization
MicroLogix controllers are found in small standalone applications: a single pump station, a small conveyor section, a simple mixing tank. In many cases, these systems have been running without modification for years. When production needs change or the hardware ages out, CompactLogix or even a Connected Components Workbench-based Micro800 can replace them while improving remote access and diagnostics.

Allen Bradley PLC Families We Support

ControlLogix

ControlLogix is Rockwell’s platform for large-scale, high-performance control applications. It handles multi-axis motion control, high-speed discrete I/O, process control loops, and complex safety functions. The chassis-based architecture allows a single system to handle hundreds or thousands of I/O points across multiple remote I/O racks connected via EtherNet/IP or ControlNet.

CompactLogix

CompactLogix fills the space between small standalone machines and large system-wide control. It is a compact, integrated controller that handles EtherNet/IP natively and supports a reasonable I/O count without requiring an expensive chassis setup. For packaging machines, material handling cells, and mid-size production equipment, CompactLogix is the most common platform we work with today.

MicroLogix

MicroLogix controllers handle smaller applications where a full CompactLogix system would be more than the application needs. Pump stations, small conveyor sections, simple mixing tanks, and standalone test equipment are typical MicroLogix applications. We provide both new MicroLogix programming and migration services for facilities moving away from older MicroLogix 1000 and 1100 systems.

SLC 500

SLC 500 systems are still running in facilities around the world, and many of them will keep running for years. We provide maintenance programming and troubleshooting for SLC 500 systems using RSLogix 500, as well as migration planning for when the facility is ready to upgrade to CompactLogix.

PLC-5

PLC-5 systems represent a significant investment in older automation infrastructure. We support active PLC-5 systems for troubleshooting and modifications, and provide migration services for facilities ready to move to ControlLogix.

Need Allen Bradley PLC Programming Support?

Whether you are building a new machine, upgrading a legacy system, troubleshooting a recurring fault, or integrating Allen Bradley PLCs with a plant-level SCADA, AutomatexLab can help. Our engineers work with the full Rockwell Automation platform stack and bring the same systematic approach to a 30-minute remote troubleshooting call as to a full migration project.

Request a Free Consultation to discuss your application. We will ask the right questions, tell you what is realistic, and give you a clear picture of what the project involves before any work begins.

Request a Free Consultation

Software Platforms We Use in Allen Bradley PLC’s

Studio 5000 Logix Designer

is the current programming environment for all ControlLogix and CompactLogix systems. It handles program development, online diagnostics, tag browsing, and task configuration. We use it for all current-generation Allen Bradley projects.

RSLogix 5000

is the predecessor to Studio 5000 and is still used when working with older ControlLogix and CompactLogix program files that predate the Studio 5000 rebranding.

RSLogix 500

covers SLC 500 and MicroLogix programming. The file-based program structure is different from the tag-based approach in Studio 5000, which is one reason SLC-to-CompactLogix migrations require careful conversion work rather than a direct import.

FactoryTalk View

is Rockwell’s HMI development environment. FactoryTalk View ME runs on PanelView Plus terminals for machine-level operator interfaces. FactoryTalk View SE scales up to plant-wide SCADA applications. We use both depending on the application scope.

RSLinx and FactoryTalk Linx

provide the communication layer between Rockwell software tools and the PLC hardware. Configuring these correctly is often the difference between a reliable remote connection and one that drops out under load.

Connected Components Workbench

covers Micro800 series controllers for smaller applications where a MicroLogix replacement is needed at lower cost.

HMI and SCADA Integration

A PLC program without a good operator interface creates unnecessary problems. Operators cannot see what the machine is doing, alarms get missed or ignored, and diagnosing faults takes longer than it should.

PanelView Plus

terminals from Rockwell are the most common HMI in Allen Bradley systems. We develop screens that show process status clearly, organize alarms by priority, and give operators the controls they actually need without cluttering the interface with information they do not use.

FactoryTalk View SE

is used for plant-level visualization where multiple machines need to be monitored from a central location. It supports historical trending, alarm logging, and user security levels.

Ignition SCADA

from Inductive Automation is increasingly common in facilities that want flexible, web-based monitoring without expensive per-client licensing. Ignition connects to Allen Bradley PLCs via its native OPC-UA and EtherNet/IP drivers. We design Ignition projects for facilities that need plant-wide data visibility, production reporting, and remote monitoring from standard web browsers.

Wonderware and Siemens WinCC

projects are also supported when a facility already has one of these platforms in place and needs a new machine integrated into the existing system.

Industrial Network Configuration

EtherNet/IP

EtherNet/IP is the primary communication protocol for modern Allen Bradley systems. Remote I/O, VFDs, servo drives, safety devices, and HMI terminals all communicate over EtherNet/IP in a typical ControlLogix or CompactLogix system. Proper network architecture, IP addressing, and switch configuration all affect how reliably the system runs. We design EtherNet/IP networks with managed switches, appropriate subnet structures, and ring topologies where fault tolerance is required.

DeviceNet

DeviceNet is still found in older installations connecting sensors, motor starters, and operator panels. Many facilities have mixed environments where newer EtherNet/IP devices and older DeviceNet devices need to coexist. We configure DeviceNet networks and handle the scanner module setup in ControlLogix systems.

ControlNet

ControlNet is a deterministic network used in some high-performance Allen Bradley systems for I/O communication where EtherNet/IP scheduling is not sufficient. It is less common in new installations but is still running in many established production environments.

Modbus TCP

Modbus TCP is the language that non-Rockwell devices often speak. VFDs from third-party manufacturers, energy meters, flow computers, and instrumentation commonly use Modbus TCP. We configure the MSG instruction-based communication in Studio 5000 to read and write Modbus registers from Allen Bradley PLCs.

PROFINET Integration

Facilities with mixed Allen Bradley and Siemens equipment sometimes need PROFINET communication between systems. We configure the communication interface modules and program the data exchange between the two platforms.

Industries We Serve

Different industries place different demands on PLC programming:

Manufacturing

facilities use Allen Bradley PLCs for machine control, assembly line automation, quality inspection systems, and material handling.

Pharmaceuticals

manufacturers need validated automation systems with detailed change control documentation and electronic batch records. We support CSV (Computer System Validation) requirements for PLC and HMI systems in regulated environments.

Food & Beverage

plants require sanitary automation designs with batch recipe management, CIP sequence control, and FDA-compliant data logging. FactoryTalk systems handle the audit trail and batch record requirements many food facilities face.

Water Treatment

facilities commonly use Allen Bradley PLCs for pump station control, chemical dosing, filtration, and SCADA-connected monitoring across distributed sites.

Packaging

operations rely on CompactLogix and ControlLogix for filling machines, labelers, case packers, palletizers, and wrapping systems where precise motion and timing control are critical.

Automotive

plants use large ControlLogix systems for body assembly, paint line control, welding cells, and material transport systems.

Chemical Processing

applications include reactor control, distillation column automation, blending systems, and tank farm management where interlocks and alarm management are critical safety functions.

Material Handling

systems from palletizers to sortation conveyors to AS/RS equipment are typically built on ControlLogix or CompactLogix with coordinated motion and zone control.

Oil and Gas

facilities use Allen Bradley PLCs for wellhead control, compressor automation, pipeline monitoring, and skid-mounted process systems.

Our Allen Bradley PLC Programming Process

A structured Allen Bradley PLC programming project generally follows these stages:

Requirement Analysis (Remote or On-Site)

Before writing any code, we document what the machine or process is supposed to do. This includes normal operation, startup and shutdown sequences, emergency stop requirements, alarm conditions, and any regulatory or safety standards that apply. This document becomes the basis for the control design and the final acceptance test.

Control Strategy Design

We develop the I/O list, define the control modes (manual, automatic, semi-automatic), and create sequence diagrams or state charts for complex processes. For motion-heavy applications, we map out the axis relationships and cam profiles at this stage.

PLC Program Development

Program development follows the control strategy document. We write the logic in sections that correspond to functional areas of the machine, which makes the program easier to navigate and debug. We use consistent naming conventions, comment all non-obvious logic, and organize routines so a technician who has never seen the program before can find what they need.

HMI Development

Operator interface screens are developed in parallel with the PLC program. Screen layouts are designed around how operators actually use the machine, not around how the PLC is organized internally. Alarm handling, navigation, and diagnostics are built into every project.

Factory Acceptance Testing

Before the system ships or goes live, we run a structured acceptance test against the requirements document. For new machine builds this happens at the machine builder’s facility. For upgrades and migrations, testing happens offline before the live system is touched.

Site Commissioning

Commissioning connects the tested system to the real process. We work through the I/O verification, confirm field device communication, tune control loops, and run the process through its normal sequences under supervision before handing it over to production.

Documentation and Operator Training

Every project includes a program backup, an I/O list, a network diagram, and operating documentation. For new installations, we conduct operator and maintenance training covering normal operation, alarm response, and basic troubleshooting.

Why Choose AutomatexLab

Choosing the right automation partner directly impacts your production, costs, and downtime. Here’s what makes AutomatexLab a dependable choice

Engineering-first approach

We treat PLC programming as a software engineering discipline with version control, documentation standards, and structured code review. This produces programs that work correctly at startup and are maintainable long-term.

Modular programming practices

We write programs using reusable function blocks and Add-On Instructions rather than duplicated rungs. This makes modifications faster, reduces the risk of introducing errors, and makes your maintenance team’s job easier.

Multi-platform expertise

Most PLC companies specialize in one brand. We work across Allen-Bradley, Siemens, Mitsubishi, Schneider Electric, Omron, and Delta — which matters when you’re running a mixed-platform facility or working with multiple machine suppliers.

Documentation included

Every project includes complete program documentation: I/O lists, network diagrams, program descriptions, and as-built notes. You won’t be left with an undocumented black box.

Scalable solutions

We build programs that can be expanded. Adding a new zone, station, or process line should require adding to the program not rewriting it.

Testimonials

What Our Clients Say About Us

AutomateXLab transformed our operations, significantly reducing our costs and boosting productivity. Their team of experts was instrumental in our success!

John Doe

The personalized approach and innovative solutions from AutomateXLab have made a remarkable difference in our factory’s efficiency. Highly recommended!

Jane Smith

About AutomatexLab

AutomatexLab is an industrial automation company specializing in PLC programming, SCADA development, and HMI design for modern production environments. We deliver practical automation solutions that improve system performance, reduce downtime, and support reliable operations.

With hands-on experience across multiple industries and platforms, our team focuses on building systems that work efficiently in real-world conditions whether through on-site execution or remote support.

Our mission is simple: help industries operate smarter, safer, and more efficiently through dependable automation solutions.

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FAQs

Which Allen Bradley PLCs do you program?

We program ControlLogix, CompactLogix, MicroLogix 1000/1100/1400/1500, SLC 500, and PLC-5 systems. We also work with Micro800 series controllers using Connected Components Workbench for smaller applications.

Do you offer remote PLC programming services?

Yes. We provide secure remote support for troubleshooting, program modifications, PID tuning, and commissioning assistance. Remote sessions are conducted through VPN connections with customer authorization.

Can you migrate our legacy SLC 500 or PLC-5 system?

Yes. We handle both SLC 500 to CompactLogix and PLC-5 to ControlLogix migrations, including program conversion, hardware replacement, I/O mapping, and acceptance testing.

Do you develop HMI and SCADA systems along with the PLC?

Yes. We develop operator interfaces for PanelView Plus terminals, FactoryTalk View ME and SE applications, and Ignition SCADA projects. Third-party SCADA integration is also available.

What communication protocols do you support?

EtherNet/IP, DeviceNet, ControlNet, Modbus TCP, and PROFINET. We also configure OPC-UA communication for SCADA integration.

Can you provide emergency troubleshooting support?

Yes. Remote troubleshooting is available for urgent production issues. Most communication and software faults can be diagnosed remotely within hours.

Do you handle commissioning at the customer site?

Yes. On-site commissioning is part of our standard project process for new installations and major upgrades. We work on-site until the system is running in production.

What documentation do you provide?

Program backups, I/O lists, network diagrams, and operational documentation are included in every project. For regulated industries, we can provide validation documentation and change control records.

What industries do you serve?

We work with manufacturing, packaging, food and beverage, pharmaceutical, automotive, water and wastewater, chemical processing, material handling, and oil and gas facilities.

How do you handle programs that were written by someone else?

We review the existing program before making any changes, document what we find, and make modifications in a way that does not disturb logic that is working correctly. If the existing program has quality issues, we flag them and discuss the appropriate remediation with the customer.