What the 50100 alarm means

Communication with an external device (PLC, vision, conveyor) timed out on the configured interface. This is one of the faults our repair team handles on ROKAE xCore (XB / CR / NB series) systems — the cause is usually identifiable within the first on-site inspection.

Most common causes

  • Network cable or switch fault
  • Partner device offline
  • IP or station configuration mismatch
  • Firewall or port change after IT work
Field note: the first item on this list is what we find most often on real machines. Check it before you go deeper.

Step-by-step field fix

  1. Verify the partner device is alive and reachable
  2. Check cables and switch port lights
  3. Confirm IP and protocol settings on both ends
  4. Restart the interface after correcting settings
  5. Handle timeouts gracefully in the program
Safety first: never bypass safety circuits or force contactors closed. If the alarm involves E-stop chains, brakes or drive power, and you are not a trained robot technician, contact a professional — wrong moves here can cost you a robot or an injury.

Still stuck? Get an engineer on the phone — right now

Tell us the alarm code, the robot model and what was happening when the alarm came up. Our engineers run these diagnostics every day, and remote diagnosis by phone or video call is free.

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Hotline: +86-20-39029800 · WhatsApp: +86-188-1886-2860

Related Communication alarms

10014 — Servo Drive Fault / Not Ready 10020 — Motion Planning Failed 13001 — Encoder Data Error 13100 — Joint Overtemperature 13200 — Bus Voltage Abnormal 15000 — Safety Stop / E-Stop Chain Open
Other brands: we also keep field-fix libraries for Dobot · FANUC · KUKA and more — see the complete alarm code hub.

Frequently asked questions

QWhat does the ROKAE 50100 alarm mean?

Communication with an external device (PLC, vision, conveyor) timed out on the configured interface. In field practice it belongs to the communication family of faults.

QCan I clear a ROKAE 50100 alarm myself?

Sometimes. Work through the step-by-step checks on this page — the first listed cause is what we find most often in the field. If the alarm returns after two attempts, or the fault involves power, brakes or safety circuits, stop and call a qualified robot service engineer.

QHow fast can a Henghuan engineer help?

On-site response in the Pearl River Delta within 30 minutes to 3 hours, across mainland China in 1-3 business days, and worldwide within 2-5 business days. Remote diagnosis by phone/WhatsApp/video is available immediately.

Written by the Henghuan Robotics repair team from field service experience. Alarm descriptions are our own summary for troubleshooting reference and may vary by controller and software version — when in doubt, check your ROKAE documentation or contact us. Henghuan is an independent service provider, not affiliated with or endorsed by ROKAE.