Free PLC programming support — tell us what the machine is doing
What is free, and what is not
| Free | A first diagnosis of a PLC, HMI, servo or VFD fault from photos, videos, alarm codes and the program backup. |
|---|---|
| Free | A review of a program backup, with a written list of what we find: missing interlocks, manual moves that are not protected, waits with no timeout, dead code. |
| Free | Advice on choosing or replacing a PLC or HMI, and what a migration from an obsolete controller involves. |
| Free | Answers to your maintenance team's programming questions: ladder, structured text, function blocks, HMI tags, communication. |
| Free | A new PLC program for CODESYS, Delta, Siemens or Omron, written from the sequence you describe, with an EPLAN or AutoCAD Electrical schematic — describe your sequence. |
| Quoted | Program changes, site visits and new machines — a fixed price for a defined scope, agreed before any work. |
One rule we keep: we never ask anyone to bypass a guard, a light curtain or an emergency stop to get a machine running. Anything that touches safety is changed and tested on site.
How it works
Most faults are found in the first message if it has the right four things in it.
- STEP 01Send the faultPLC and HMI make and model, the alarm text or code, what the machine should do and what it does instead. Photos and a short phone video help more than a long description.
- STEP 02We look at itAn engineer who programs these controllers every week reads the alarm, the I/O and the program if you sent it, and replies within one working day.
- STEP 03You decideFix it yourselves with our notes, or have us do it at a fixed price. If it turns out to be a bigger job, see program correction.
What to send for the fastest answer
- A photo of the PLC itself and its label — make, model and firmware if visible.
- A photo of the HMI alarm screen, or the exact alarm text.
- A 20-second phone video of the machine doing the wrong thing.
- Which step of the cycle it stops at, and whether it happens every cycle or at random.
- The program backup, if you have one — the project file from the laptop that programs the machine.
- What changed recently: a sensor replaced, a power cut, a new operator, a program edit.
Faults we see most often
- The machine stops at the same step every time: a sensor that no longer switches, or a cylinder that no longer reaches it.
- Random stops with no clear alarm: loose wiring, a failing power supply, a communication timeout with remote I/O or a drive.
- Good parts rejected: a limit or a sensor drifted, or a recipe value was changed.
- HMI shows wrong values or communication error: wrong addresses after an HMI or PLC change, or a network setting.
- Program lost after a battery or power failure: a backup restore — or a recovery if no backup exists.
Free PLC support questions
Is the PLC support really free?
The first diagnosis is. Send the fault and we tell you what we think is wrong and what it takes to fix it, at no cost and with no obligation. If the fix is small enough to explain, we explain it and your team does it. If it needs program changes or a visit, you get a fixed quotation before any work starts.
What is the catch?
There is none hidden. Most PLC problems are small once someone who reads ladder logic looks at them, and helping first is how we earn the bigger jobs — new machines, retrofits and upgrades. The free part is a diagnosis and advice — and a new PLC program written from your machine's sequence, for CODESYS, Delta, Siemens or Omron. Program changes to a running machine, site visits and new machines are paid work, quoted up front.
Do you need remote access to our machine?
Not for the first look. Photos of the HMI alarm and the panel, a phone video of what the machine does, the PLC make and model, and a program backup if you have one are usually enough. Remote access is only needed for live changes, and only where your plant's IT rules allow it.
We do not have the PLC program. Can you still help?
Often, yes. Many PLCs let the program be read back from the controller, and a lot of faults — a failed sensor, a stuck valve, a tripped drive — can be found from the alarm, the I/O LEDs and a video without opening the program at all.
Which brands do you support?
Siemens S7-1200 and S7-1500 (TIA Portal), Omron (Sysmac Studio and CX-One), Delta, Mitsubishi, Allen Bradley and CODESYS-based controllers, with Weintek, Delta and Siemens WinCC HMIs, plus Fanuc PMC and Fagor PLC on CNC machines.
How fast do you reply?
Within one working day, and usually sooner on WhatsApp. If the machine is stopped and costing you production, say so in the first message.
Have a job that a machine should be doing?
Send the part and the target output. You get a concept, a sequence and a budget range back — free, and with no obligation to build it with us.