Many faults live in the control layer — not in broken hardware. Choose the technology behind your equipment to reach remote diagnostic help: parameter tuning, log reading and communication checks. We guide remotely; we do not perform physical hardware repair.
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Programmable logic controllers — Siemens S7, Allen-Bradley CompactLogix and peers. Most "dead PLC" cases are configuration, addressing or program faults: diagnostic buffers, scan behavior and I/O mapping tell the story remotely.
Browse guidesOperator panels and touchscreens, from Siemens Comfort Panels to controller handhelds. Freezing, boot loops and touch dead-zones usually trace to project files, firmware versions or panel-to-controller links — all reviewable without opening the cabinet.
Browse guidesVariable frequency drives — Schneider ATV320, ABB ACS580, WEG CFV800. Trips, no-start and erratic speed come down to acceleration ramps, current limits and motor-parameter identification; parameter-level remote review covers most of it.
Browse guidesServo drives and motors like the Yaskawa Sigma-7. Overcurrent alarms, positioning drift and gain instability need alarm-history interpretation and tuning — we read the codes and guide the adjustment sequence step by step.
Browse guidesModbus RTU and TCP, the most common fieldbus in small and mid installations. Silence, CRC errors and slave dropouts point to baud mismatches, address conflicts and gateway routing — all resolvable by guided checks from both ends.
Browse guidesHaas VF-2, FANUC Robodrill and similar machine tools. Axis-servo alarms like Haas Alarm 123, spindle overload and control-side communication loss are parameter and load issues far more often than mechanical failure — guided remote review of alarms, loads and settings.
Browse guidesEpson SureColor, Canon imagePROGRAF and Zebra label printers. Printhead errors, ink-system faults and RIP communication failures split between the print engine and the print server — we diagnose both sides of that link.
Browse guidesPROFINET, EtherNet/IP and EtherCAT links between controllers and devices. Device-name conflicts, IP collisions and timeout settings produce intermittent faults that look like hardware — remote trace and configuration review separates them.
Browse guidesEach guide is one real fault on one real model. For more angles on the same library: browse by equipment type or browse by symptom.
In modern equipment the control layer does the hardest work — and it is the layer most exposed to drift. Parameters get copied between machines, firmware versions diverge, fieldbus settings survive a partial network change. The result is a fault that looks mechanical but is not:
If your fault matches this pattern, browse by symptom instead — or see all troubleshooting topics for the full picture.
With the enable chain and the speed reference, then the motor-parameter set. A silent drive usually means the start command never reached it in a form it accepts — that is wiring and parameter territory, and it is systematically checkable remotely.
Often yes. Many checks run from the panel itself: alarm histories, diagnostic buffers, basic parameter screens. When software is required, we tell you exactly which package and version, and what to capture once it is connected.
For recovery sequences, version checks and configuration after an update — yes, routinely. We do not flash hardware on your behalf; we guide you through each step with verification points, so a failed update becomes a documented recovery instead of a guess.
The exact model and firmware version if visible, the symptom in one sentence, and whatever history the device keeps. For fieldbus issues add the topology: what connects to what, and through which switches or gateways.
Send the model and the exact alarm or behavior — we'll connect you with a specialist for remote diagnostic and guidance.
We do not perform physical hardware repair, we do not replace parts or components, and we do not guarantee that every fault can be resolved. Our service is remote diagnostic and operational guidance only.