Question 1

If the PLC program is lost, can you recover it?

Accepted Answer

If a copy exists with you or with the company that commissioned the system, loading it is no problem. Without a copy, reading it back from the controller is not always possible — on many PLCs the program is read-protected. We give you a definite answer after diagnostics.

Question 2

Do you replace the touch screen of an HMI operator panel?

Accepted Answer

We do replace touch panels. For models whose panel is out of production we propose a suitable alternative of matching size; whether that works depends on the model and becomes clear during diagnostics.

Question 3

If one I/O channel is burnt, must the whole module be replaced?

Accepted Answer

No. The optocoupler, protection and driver elements of the burnt channel are replaced individually. If several channels burnt at once we look for the cause too — usually a miswire or a lost phase on the field side.

Question 4

If Modbus or RS-485 communication drops, is the controller to blame?

Accepted Answer

Not always. The cause may be in the line itself, the terminator or the device at the other end. If the driver chip in the controller has failed, we replace it — confirmed by measurement, not by guesswork.

Question 5

How quickly can you look at it if production has stopped?

Accepted Answer

We take line-down cases as urgent. Message us the make and model and the error code on the screen via WhatsApp — often we can estimate what we are dealing with before the unit even arrives.

Question 6

Can you give an exact price over the phone or from a photo?

Accepted Answer

No. On electronic boards the same symptom — a device that will not power on, for example — can come from any of dozens of failed components. The price depends not only on the cost of the part but on the time the specialist spends on the board and on the complexity of the work. An exact price is given only after laboratory diagnostics, and it is agreed with you first.

Question 7

How many days does the repair take? Is an express repair possible?

Accepted Answer

Standard diagnostics and repair take 1–3 working days. If the required spare part is in our stock, the process finishes sooner. In rare cases it can take considerably longer — waiting for a donor board, ordering a part from abroad, or an unusually complex fault can stretch the work to 1–2 months; such cases are uncommon and we tell you the expected timeframe in advance. If you need it looked at without waiting in the queue, the device is diagnosed out of turn the same day, with an additional service fee.

Question 8

Is there a warranty on the work done and on replaced parts?

Accepted Answer

We give a one-month warranty on the repaired unit and on any new spare parts fitted. The warranty covers only the part we repaired; failure of another block of the device, water damage or physical impact are not covered.

Question 9

Do you repair devices when spare parts are unavailable?

Accepted Answer

In most cases we can source an alternative component or recover one from a donor board. When a part cannot be found at all and the design allows it, we offer a workaround — for example replacing the function of a discontinued control block with an Arduino or STM32 based module. We tell you after diagnostics whether this is possible for your device.

PLC and HMI Repair in Baku

How we work

Not every device can be repaired

Devices we repair

Common faults we repair

Typical causes of failure

Brands and platforms we work with

How the repair works

Enquiry and first contact

Acceptance and diagnostics

Estimate and approval

Testing and handover

Diagnostics and pricing

Frequently asked questions

Other repair areas

Request a repair