PLC and I/O Module Repair
CPU, power supply, digital and analog I/O and communication modules are assessed individually. Program and parameter backups are taken where technical access allows; firmware, passwords and project files are not requested when you submit your request.
Real laboratory / field photo
Service overview
CPU, power supply, digital and analog I/O and communication modules are assessed individually. Program and parameter backups are taken where technical access allows; firmware, passwords and project files are not requested when you submit your request.
The LED status can also be selected as text in the form; we do not rely on colour symbols alone.
Which symptoms call for an assessment?
- No powerThe module does not power up.
- Does not switch to RUNThe CPU status does not change or the error LED is lit.
- I/O channel problemA specific input or output does not respond.
- Communication problemThe network or fieldbus connection drops out.
A symptom is not a diagnosis; the cause becomes clear during laboratory diagnosis.
Work performed
| Area | Description |
|---|---|
| CPU | Power stage, processor periphery and memory backup (where access allows). |
| Power supply module | Input and output voltages, protection components. |
| Digital / analog I/O | Channel-by-channel testing and hardware assessment. |
| Communication module | Port and interface checks. |
Analysis and testing approach
I/O testing and hardware assessment are carried out according to the scope of the device. Support for older series is offered as a model assessment; no guarantee of outcome is given for all models.
Quotation, approval and delivery process
Registration
We record the device details and symptoms and send you a reference number.
Analysis
The fault is diagnosed in the laboratory, so it is clear what has failed.
Quotation and approval
Scope and price are confirmed in writing; nothing is done without your approval.
Repair
The repair is carried out within the approved scope; you are informed of any deviation.
Testing and delivery
The device is tested under suitable conditions and returned with a short technical summary.
Preparing for shipment
State the brand and series, CPU or module type, full model, alarm / LED information and whether a backup is available. You are not asked to upload project files.
Frequently asked
Whether a backup can be taken depends on the condition of the device; take a backup beforehand if possible, and we will also back it up where access allows.
They are assessed model by model; the outcome becomes clear at diagnosis.