What PLC brands do you repair?

We repair all major PLC brands including Allen-Bradley ControlLogix, CompactLogix, SLC 500, and PLC-5; Siemens S7 and S5; Mitsubishi MELSEC; Omron Sysmac; GE Fanuc PACSystems; Schneider Modicon; ABB AC500; Beckhoff; and all other brands.

Can you preserve my PLC program during repair?

Yes. We back up and preserve the PLC program — including ladder logic, function block diagrams, and configuration — before any repair work begins. Your program is restored and verified after repair.

Do you repair discontinued PLCs like the Allen-Bradley SLC 500?

Yes. We specialize in repairing discontinued and legacy PLCs including Allen-Bradley SLC 500, PLC-5, MicroLogix, Siemens S5, and GE Fanuc Series 90. Repair is often the only option when replacement units are unavailable.

How long does PLC repair take?

Standard PLC repair turnaround at Flexa Systems is 5–20 days. Rush service with 24–72 hour turnaround is available for critical production equipment.

Where can I find PLC repair near Dallas or Lewisville TX?

Flexa Systems provides PLC repair in Lewisville, TX — part of the Dallas-Fort Worth metro. DFW and Dallas-area customers can drop off equipment directly. Nationwide mail-in also available with free return shipping on completed repairs.

How does fast PLC repair minimize production downtime?

We begin free diagnostic evaluation within 24–48 hours of receiving your PLC. Rush 24–72hr repair is available for production-critical situations. We preserve your existing program so no reprogramming is needed — getting your original PLC back is faster and cheaper than sourcing a replacement and reconfiguring it from scratch.

Do you perform firmware updates or PLC reprogramming as part of the repair?

Yes. We can update firmware as part of the repair when a firmware issue is identified, or when the customer requests it. Your existing ladder logic, function block diagrams, and configuration are preserved and verified after any firmware update.

Industrial PLC Repair Service — Allen-Bradley, Siemens & More

PLC Repair Service — Programmable Logic Controllers

Component-level PLC repair service for all major brands — Allen-Bradley ControlLogix, Siemens S7, Mitsubishi MELSEC, Omron, Schneider Modicon. CPU, I/O modules, communication cards, power supplies — program always preserved. Free diagnostic, 2-year warranty, 5–20 day turnaround. Nationwide mail-in industrial controller and programmable controller repair services from Lewisville, TX.

Get a Free Quote Call (254) 254-0005

2-Year Warranty

5–20 Day Turnaround

24–72hr Rush Available

Free Diagnostic

Nationwide Mail-In

PLC Brands We Repair

Select your PLC brand for model-specific repair information and pricing

Most Requested Allen-Bradley

Allen-Bradley PLCs

Full repair for the complete Allen-Bradley PLC family — including discontinued SLC 500 and PLC-5 systems with program preservation.

ControlLogix CompactLogix SLC 500 MicroLogix PLC-5

View ControlLogix Repair

Siemens

SIMATIC S7 Series

CPU, I/O, communication module repair for Siemens S7 and legacy S5 PLC systems.

S7-1500 S7-1200 S7-300 S7-400 S5

View S7-1500 Repair

Mitsubishi

MELSEC Series

CPU and I/O module repair for the complete Mitsubishi MELSEC PLC family.

iQ-R iQ-F Q Series FX Series

View Mitsubishi Repair

Omron

Sysmac Series

Full component-level repair for Omron Sysmac PLCs including discontinued CS and CJ series.

NJ/NX Series CS1 CJ2 CP1

View Omron Repair

GE Fanuc / Emerson

PACSystems & Series 90

CPU, I/O, and power supply repair for GE Fanuc PACSystems and legacy Series 90 PLCs.

RX3i RX7i VersaMax 90-30 90-70

View GE Fanuc Repair

Schneider · ABB · Beckhoff · Others

All Other Brands

We repair all PLC brands. If it controls automation, we repair it. All brands and models accepted.

Modicon M340 M580 ABB AC500 Beckhoff CX

Get a Quote

Why Repair Instead of Replace?

The numbers make the decision easy

30–60%

Cost Savings

vs. new PLC + engineering cost

5–20

Day Turnaround

vs. 8–24 weeks for legacy models

Program

Preserved

ladder logic backed up on every repair

Legacy

PLCs Repaired

SLC 500, PLC-5, S5, Series 90

How PLC Repair Works

Simple 4-step process — ship us the PLC, get it back repaired with a 2-year warranty

Free Diagnostic

Full control system analysis: CPU, I/O, power supply, communication modules. No charge, no obligation.

Written Quote

Detailed fault diagnosis report specifying what failed and what we'll replace. Approve before any work starts.

Circuit Board Repair

Our PLC technicians perform circuit board repair at component level. PLC program and ladder logic backed up and preserved before work begins.

Function Test

Comprehensive I/O simulation and control panel testing. Program restored and verified before shipping.

Nationwide PLC Repair — Based in Lewisville, TX

Located in the Dallas-Fort Worth metro, Flexa Systems repairs PLCs for customers across all 50 states via our mail-in program. Ship us your PLC, we repair it, ship it back. Local drop-off available for DFW customers.

All 50 States Served

DFW Drop-off Available

24–72hr Rush Service