PLC-5 and SLC 500 failure

Call 253-344-1523. An engineer will call you back within 30 minutes in business hours. We will get the failed system running again where we can, then help you move it to current hardware, so the line runs on parts you can still buy.

What we will do

Find the failed part. A processor, an I/O card, a power supply or a network link: we will find which, and whether the program is intact.

Replace it with current hardware. For most plants that means Rockwell's standard migration paths: ControlLogix for a PLC-5, CompactLogix for an SLC 500. If you would rather move to another platform, we will work to that. We will source the hardware fast through our distributors.

Keep what still works. The new controller can run the I/O and field wiring you have, so the I/O can move over later, one rack at a time, inside your shutdowns.

Write it up. You will get a written site assessment and a plan for the rest of the system. For a whole line, a Line Evaluation gives you a phased plan.

What we work on

Allen-Bradley PLC-5 and SLC 500 processors, I/O, power supplies and their networks: Data Highway Plus, Remote I/O, ControlNet, DH-485 and DeviceNet.

Behind the engineer who comes

The engineer who comes for your obsolete PLC will work on today's fault. Behind them are the controls engineers, electricians and panel shop that rebuild and upgrade plants and vessels across the Pacific Northwest. If the fault needs another trade, we will send them.

Licensed electrical contractor · UL 508A panel shop · Controls and electrical in one company

Fix it now
Urgent Support · Rapid Response · Drive Support
Stop repeat faults
Program and Drawing Recovery · Plant Electrical Service · Engineer Cover
Plan the upgrade
Line Evaluation · Pre‑Shipyard Survey
Modernize in stages
Modernization · Shipyard Support

Field noteRestoring control on a high-attention bottling lineRead the field note

Questions

Can you fit a used or refurbished part to get us running?No. We do not fit used parts. Allen-Bradley stopped making the PLC-5 in 2017 and has discontinued the SLC 500, so we will put in current hardware instead.

Do we have to rewire the panel?Usually not. The new controller can run the I/O and field wiring you have.

Where and when do you cover?We cover any plant we can reach in a few hours from Fife. Further away, we will try to help you first over a remote connection. If you have an account with us, call 253-344-1523 at any hour and an engineer on call will answer. Without an account, call anyway: if an engineer is free, we will call you back that night or weekend, and if not, from 8 am the next working day.