Comparing PLC Platforms for Roll Forming Machines — Lifecycle, Spare Parts & Regional Support

Introduction — Why PLC Platform Choice Matters in Roll Forming Machines

Selecting the correct PLC platform is one of the most important decisions when designing, purchasing, or upgrading a roll forming machine.

While many PLC systems can control basic machine functions, long-term factors such as product lifecycle, spare parts availability, and regional technical support often determine whether a system will remain reliable for 10–20 years.

Roll forming machines frequently operate for decades. During that time, control systems may require:

replacement hardware
software updates
spare parts
technical support

If a PLC platform becomes obsolete or difficult to support, maintaining the machine can become expensive and complicated.

This guide compares major PLC platforms used in roll forming machines and explains how lifecycle, spare parts availability, and regional support affect long-term reliability.

What Is a PLC Platform Lifecycle?

Every PLC platform follows a lifecycle from introduction to eventual discontinuation.

The typical lifecycle stages include:

Product Launch
The PLC platform is introduced to the market.
Active Production
Hardware and spare parts are widely available.
Mature Support Phase
The product remains supported but may be replaced by newer models.
Obsolescence Announcement
The manufacturer announces that the product will eventually be discontinued.
End of Life
Manufacturing stops and spare parts become difficult to obtain.

Roll forming machines built with obsolete PLC systems may eventually require a PLC retrofit to remain operational.

Why PLC Lifecycle Matters in Roll Forming Machines

Roll forming machines often remain in production for 15 to 30 years.

Because of this long service life, automation hardware must remain supportable for many years.

Lifecycle considerations affect several areas:

spare parts availability
software compatibility
long-term maintenance costs
technician familiarity

Machines built using widely supported PLC platforms are easier to maintain throughout their lifecycle.

Major PLC Platforms Used in Roll Forming Machines

Several PLC platforms are commonly used by roll forming machine builders around the world.

Examples include:

Siemens automation platforms
Rockwell / Allen-Bradley controllers
Mitsubishi PLC systems
Omron automation systems
Beckhoff control systems
Schneider Electric PLCs
Delta automation systems
B&R automation platforms

Each platform offers different advantages depending on machine complexity and regional market support.

Global PLC Platform Support

Some PLC platforms have strong worldwide support networks.

These platforms typically provide:

global technical support
large installed user base
strong spare parts availability
extensive training resources

Examples include:

Siemens PLC systems
Rockwell Automation PLC systems

These platforms are often preferred for machines that will operate in multiple countries.

Regional PLC Preferences

PLC platform popularity often varies by geographic region.

Different regions tend to prefer specific automation vendors.

Typical regional trends include:

Europe

Common PLC platforms:

Siemens
B&R
Beckhoff
Schneider Electric

European machine builders frequently use Siemens automation systems due to strong regional support.

North America

Common PLC platforms:

Rockwell / Allen-Bradley
Siemens

Rockwell controllers are widely used in the United States and Canada because of strong technical support and training availability.

Asia

Common PLC platforms:

Mitsubishi
Omron
Panasonic
Keyence

Many Asian machine builders prefer PLC systems produced by local manufacturers.

Emerging Markets

Common PLC platforms:

Delta
Schneider Electric
Mitsubishi

These platforms are often chosen for cost-sensitive machine designs.

Spare Parts Availability

Spare parts availability is critical for maintaining roll forming machines.

Important spare parts include:

PLC CPUs
I/O modules
communication modules
power supplies

Machines using widely supported PLC platforms generally have better spare parts availability.

In contrast, machines using niche or discontinued PLC platforms may experience difficulties obtaining replacement components.

Impact of PLC Obsolescence

PLC obsolescence can create significant challenges.

Common problems include:

discontinued hardware modules
unsupported programming software
lack of technical support
difficulty sourcing replacement parts

When these issues occur, machine owners may need to perform a PLC retrofit.

Retrofits replace outdated control systems with modern automation platforms.

Technician Availability

Another important factor when selecting a PLC platform is technician availability.

If a PLC system is widely used in a region, technicians are more likely to be familiar with the platform.

This reduces troubleshooting time and maintenance costs.

Platforms with large user bases generally have:

more trained technicians
more training resources
larger online knowledge communities

These factors simplify long-term maintenance.

Software Ecosystem

The engineering software used to program PLC systems also plays a major role in long-term support.

Important software considerations include:

availability of software licenses
compatibility with modern operating systems
availability of programming documentation

If programming software becomes difficult to obtain or incompatible with modern computers, maintaining the machine becomes more difficult.

Integration with Industrial Networks

Modern roll forming machines often integrate multiple automation systems.

PLC platforms must support communication with:

servo drives
VFD drives
distributed I/O systems
HMI operator interfaces

Common industrial communication networks include:

PROFINET
EtherNet/IP
EtherCAT
Modbus

Platforms that support widely used networks provide greater flexibility for machine upgrades.

When a PLC Retrofit Becomes Necessary

PLC retrofits are often required when:

spare parts become unavailable
control hardware fails repeatedly
software becomes unsupported
production requirements increase

Retrofits allow machine owners to modernize automation systems while keeping the mechanical equipment.

Long-Term Support Strategy for Roll Forming Machines

When selecting a PLC platform, machine builders and buyers should consider long-term support strategy.

Key considerations include:

global availability of spare parts
regional technician support
manufacturer product lifecycle policy
compatibility with modern industrial networks

Selecting a well-supported PLC platform reduces long-term maintenance risk.

Benefits of Choosing the Right PLC Platform

Choosing the correct PLC platform provides several long-term benefits.

These include:

easier maintenance
faster troubleshooting
better spare parts availability
lower lifetime operating costs

Well-supported automation platforms help ensure that roll forming machines remain productive for many years.

FAQ — PLC Platform Comparison

Why is PLC lifecycle important for roll forming machines?

Because roll forming machines often operate for decades, the control system must remain supported with spare parts and software.

Which PLC platforms have the strongest global support?

Platforms from Siemens and Rockwell Automation typically offer the strongest global support networks.

What happens when a PLC platform becomes obsolete?

When a PLC platform reaches end-of-life, spare parts become difficult to obtain and the machine may require a control system retrofit.

Why does regional PLC preference matter?

Using a PLC platform commonly used in a region ensures easier access to technicians, spare parts, and technical support.

What spare parts are most critical for PLC systems?

Important spare parts include PLC CPUs, I/O modules, power supplies, and communication modules.

When should a roll forming machine receive a PLC retrofit?

Retrofits are typically performed when the existing PLC system becomes unreliable, obsolete, or unsupported.