Serving Chicagoland manufacturers since 2001.
The short answer: Information Technology (IT) and Operational Technology (OT) serve different purposes, but both are essential to modern manufacturing.
Information Technology (IT) supports your business operations through systems like computers, email, ERP software, cloud services, and cybersecurity. Operational Technology (OT) controls the machines and industrial systems that keep production running, including PLCs, CNC machines, robotics, HMIs, and industrial control systems.
As manufacturers become more connected, IT and OT increasingly work together. While this integration improves efficiency and visibility, it also creates new cybersecurity and operational challenges. Understanding the difference between IT and OT is critical for protecting production, reducing downtime, and supporting future business growth.
At TR Technologies, we've been serving Chicagoland manufacturers since 2001, helping manufacturers securely manage both business technology and production environments.
Why IT and OT Matter More Than Ever
Not long ago, office computers and production equipment operated almost entirely separately.
Today, manufacturing technology is far more connected.
Your ERP system may send work orders directly to production.
Machine performance data may feed management dashboards.
Remote machine vendors may access equipment over the Internet.
Production data may be analyzed using cloud platforms.
These advancements improve efficiency—but they also increase the importance of properly managing both IT and OT environments.
When these systems aren't designed and secured correctly, a problem that begins on an employee's laptop could potentially impact production equipment.
That's why understanding the difference between IT and OT has become an essential part of modern manufacturing.
What Is Information Technology (IT)?
Information Technology supports the systems employees use to operate the business.
Typical IT systems include:
- Microsoft 365
- ERP software
- Accounting systems
- File servers
- Active Directory
- Desktop computers
- Laptops
- Wireless networks
- Internet connectivity
- Firewalls
- Endpoint security
- Backup systems
The primary objectives of IT are:
- Employee productivity
- Communication
- Data protection
- Business continuity
- Cybersecurity
When someone thinks about "IT support," they're usually thinking about these systems.
What Is Operational Technology (OT)?
Operational Technology controls the equipment that manufactures products.
Unlike IT systems, OT interacts directly with physical machines and industrial processes.
Examples include:
- Programmable Logic Controllers (PLCs)
- CNC machines
- Robotics
- Human Machine Interfaces (HMIs)
- SCADA systems
- Industrial sensors
- Vision inspection systems
- Variable Frequency Drives (VFDs)
- Industrial switches
- Production control systems
The priorities of OT are different from traditional IT.
Instead of focusing primarily on office productivity, OT emphasizes:
- Production uptime
- Equipment reliability
- Worker safety
- Product quality
- Process consistency
For manufacturers, production downtime can cost thousands—or even tens of thousands—of dollars per hour depending on the operation.
IT vs. OT: Understanding the Differences
Although IT and OT increasingly work together, they have different goals and priorities.
| Information Technology (IT) | Operational Technology (OT) |
|---|---|
| Supports business operations | Controls manufacturing operations |
| Employees use the systems | Machines use the systems |
| Email, ERP, Microsoft 365 | PLCs, CNCs, robotics, HMIs |
| Protects business data | Protects production processes |
| Frequent software updates | Carefully planned maintenance windows |
| Standard hardware | Specialized industrial equipment |
| Focus on productivity | Focus on uptime and safety |
| Business continuity | Production continuity |
Neither environment is more important than the other.
Successful manufacturers recognize that both IT and OT must work together while remaining appropriately protected.
Why IT and OT Are Converging
Manufacturing continues moving toward greater connectivity.
Examples include:
- ERP systems communicating with production equipment
- Production dashboards displaying real-time machine performance
- Cloud-based analytics
- Predictive maintenance
- Industrial Internet of Things (IIoT) devices
- Remote equipment monitoring
- Automated reporting
- Digital quality management systems
These technologies provide tremendous benefits.
Manufacturers gain:
- Better visibility
- Faster decision-making
- Improved productivity
- Reduced downtime
- More accurate production reporting
However, increased connectivity also expands the potential attack surface for cybercriminals.
That makes thoughtful planning more important than ever.
The CONNECT Framework for Managing IT and OT
At TR Technologies, we encourage manufacturers to think about IT and OT through the CONNECT Framework.
C — Classify Your Assets
You can't protect what you don't know exists.
Create an inventory of both IT and OT assets, including:
- Servers
- Workstations
- Switches
- Firewalls
- PLCs
- CNC machines
- Robotics
- HMIs
- Wireless devices
- Industrial networking equipment
An accurate inventory forms the foundation for every cybersecurity and lifecycle planning decision.
O — Organize Your Networks
One of the most important cybersecurity practices is separating business systems from production systems.
Network segmentation helps:
- Limit cyber threats
- Reduce ransomware spread
- Improve troubleshooting
- Support cyber insurance requirements
- Protect manufacturing equipment
Office users and production equipment typically should not share the same unrestricted network.
N — Normalize Vendor Access
Many manufacturers rely on outside vendors to maintain production equipment.
Without proper controls, remote vendor access can introduce unnecessary risk.
Best practices include:
- Secure VPN connections
- Multi-factor authentication
- Time-limited access
- Logging remote sessions
- Vendor approval procedures
Every vendor should have only the access they need—and only when they need it.
N — Navigate Updates Carefully
Office computers can usually be updated quickly.
Production equipment often requires a much more cautious approach.
Updates should be coordinated with:
- Machine manufacturers
- PLC programmers
- Automation vendors
- Production managers
Testing changes before deployment helps avoid unexpected production interruptions.
E — Establish Cybersecurity Standards
Strong cybersecurity protects both IT and OT environments.
Key controls include:
- Multi-factor authentication
- Endpoint detection and response (EDR)
- Firewalls
- Secure backups
- Vulnerability management
- Continuous monitoring
- Security awareness training
Cybersecurity should be viewed as a business strategy—not simply an IT project.
C — Coordinate Teams
Manufacturing success depends on collaboration.
Operations, engineering, production, and IT all have different priorities.
A coordinated approach improves:
- Project planning
- Equipment deployments
- Cybersecurity
- Troubleshooting
- Vendor management
When departments work together, technology decisions become far more effective.
T — Think Long-Term
Technology should support future business goals.
Strategic planning includes:
- Hardware lifecycle management
- Production expansion
- Facility growth
- New automation projects
- Cybersecurity maturity
- Budget forecasting
Rather than reacting to failures, manufacturers can make informed investments that support long-term success.
Common Mistakes Manufacturers Make
As manufacturing technology becomes more connected, we frequently see organizations make avoidable mistakes.
These include:
- Treating IT and OT as completely separate environments
- Connecting production equipment directly to the office network
- Allowing unrestricted remote vendor access
- Updating production equipment without proper testing
- Failing to inventory industrial assets
- Using unsupported operating systems
- Assuming machine vendors manage cybersecurity
- Lack of communication between engineering and IT
Addressing these issues proactively helps reduce risk while improving operational reliability.
Frequently Asked Questions
Is OT the same as industrial automation?
Not exactly.
Operational Technology includes industrial automation systems, but it also encompasses the broader technologies that monitor and control manufacturing operations.
Should IT manage OT systems?
IT and OT should work closely together, but production engineers and machine vendors often possess specialized knowledge of industrial equipment.
The most successful manufacturers encourage collaboration between both teams.
Why can't we update PLCs like office computers?
Unlike standard business systems, production equipment often requires careful testing before updates to avoid disrupting manufacturing processes.
Does cyber insurance apply to OT environments?
Increasingly, yes.
Many cyber insurance providers evaluate how manufacturers secure production networks, remote vendor access, backups, and overall cybersecurity practices.
Why is network segmentation so important?
Separating business systems from production systems helps reduce cyber risk, limits the spread of malware, improves troubleshooting, and supports business continuity.
Why Manufacturers Choose TR Technologies
Manufacturing technology requires more than general IT support.
Manufacturers partner with TR Technologies because we provide:
- 25 years of manufacturing IT experience
- Guaranteed response times
- Average response time under 15 minutes
- 99% uptime for managed systems
- Strategic vCIO planning
- Full-service help desk
- Best-practice IT administration
- Manufacturing network segmentation expertise
- Coordination with machine vendors and technology providers
- A single point of accountability for your IT environment
We understand that protecting production is just as important as protecting your business systems.
Key Takeaways
- IT supports business operations, while OT controls manufacturing processes.
- Modern manufacturers increasingly connect IT and OT environments to improve productivity.
- Secure integration requires thoughtful planning, network segmentation, and collaboration.
- Strong cybersecurity protects both business systems and production equipment.
- Strategic IT planning helps manufacturers reduce downtime, improve resilience, and prepare for future growth.
Is Your Manufacturing Technology Working Together Securely?
As manufacturing continues becoming more connected, the relationship between IT and OT has never been more important.
Whether you're adding new production equipment, improving cybersecurity, or planning for future growth, TR Technologies can help you develop a strategy that protects both your business systems and manufacturing operations.
Contact TR Technologies today to schedule a discovery call and learn how our manufacturing-focused IT services can help support your business today and into the future.
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