Do you still have any of these?

Maybe it’s time to upgrade.

Don’t let a failure stop production. Start your PLC-5
migration to ControlLogix today.

Due to the end-of-life status of Allen-Bradley® PLC-5® hardware, the cost and scarcity of replacement parts, and increasing risk of using obsolete hardware – we urge you to upgrade now. Start planning your PLC-5 migration to the ControlLogix® platform today. Cates can help!

The Cost and Risk of Using PLC-5 Hardware is Increasing

PLC-5 Hardware is Obsolete

Rockwell Automation discontinued the 1785 and 1771 series hardware in June 2017 and no longer sells or supports it.

Many Systems Continue Using It

Don’t risk a failure without an available replacement to minimize downtime. We urge you to migrate to the ControlLogix platform.

Replacements are Scarce

Many users buy expensive components from third party suppliers — increasing cost and risk as the parts often have no guarantee.

Assess the Impact of a PLC-5 Failure

  • The Allen-Bradley PLC-5 controls many critical manufacturing processes
  • What would the business impact be if a replacement were not available onsite or online?
  • Potential loss of income and other negative consequences can justify an upgrade

Map Out Your PLC-5 Migration to ControlLogix

Planning Ahead is Critical

Scheduled PLC-5 upgrades can take weeks or months depending on I/O replacement level, software integration and available downtime.

Increase Scheduling Options

Planned conversions can be done over time and at your convenience to satisfy ongoing production schedules.

Reduce Cost, Risk and Stress

Planned migrations are less expensive and reduce the risks associated with upgrading an entire facility at once.

Get Expert Assistance from Cates

We’ve done 100s of successful conversions


PLC-5 System


1771 Series
Chassis Conversions


I/O Points

Migration Expertise Across Industries

Food and




Water and

Oil and

Experience with Large Migrations

Using conversion kits and rewire swing arms, our engineers have done complex upgrades for Fortune 500 firms with tight deadlines.

Before PLC-5 Migration

After PLC-5 Migration

Attention to Schedule and Budget

Our experience allows us to meet your migration plan specifications and schedule, or to help you develop a plan to meet your schedule and budget.

Complimentary Services

Discuss your upgrade path with our experts and receive a complimentary remote or on-site system analysis. Whether your project is large or small we’re here to help at whatever points you need assistance.

Start Planning Your Upgrade Today

Information Request

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PLC-5 migration questions.

Talk to Our Experts

Call us today to discuss
your PLC-5 upgrade.