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Communication alarms: 14 alarm codes

Communication alarms start at the physical layer by default: oxidised connectors, unconnected shielding, broken cores in the drag chain, missing termination resistors. A multeter and your eyes find most of these, and they are the most common cause. Only then do we check node IDs, baud rates and data mapping. This page lists every communication code and the layered method.

ALARM TOPIC

How we approach this family on site

The data link: fieldbus, Ethernet, cabinet-to-body communication and external device interfaces physical layer (cable / connector / shield) -> link layer (protocol / baud / node ID) -> application layer (data mapping / handshakes)

Inspection line: start at the physical layer: connectors, cable, shielding and termination resistors - most field communication faults live there

Spares we carry: we carry common bus cables, connectors, termination resistors and shield terminals

Most frequent causes (by pages seen)

Joint module power dip (seen on 2 pages)
SMB cable disconnected or damaged at the X2 connector or robot base (seen on 1 pages)
Broken SMB board (seen on 1 pages)
Internal bus cable or connector fault (seen on 1 pages)
Cable or network fault to the external device (seen on 1 pages)
Wrong IP/station address after a network change (seen on 1 pages)

All 14 codes, grouped by brand

AUBO 2 Staubli 2 ABB 1 EFORT 1 EPSON 1 ESTUN 1 FANUC 1 INOVANCE 1 JAKA 1 NACHI 1 OMRON 1 ROKAE 1

ABB 38103 — Communication with SMB Interrupted
AUBO 10006 — Joint Communication Error (JOINT_ERR)
AUBO 50001 — External Interface Communication Error
EFORT 0050 — Internal Communication Error (EC2-S)
EPSON 4100 — Communication Error in Motion Control Module
ESTUN e-21 — Servo Communication Timeout
FANUC syst-067 — Panel HSSB Disconnect
INOVANCE 0x9020 — Controller–Drive Bus Timeout (IRCB501)
JAKA 0x000038 — Joint Communication Lost
NACHI e0117 — Teach Pendant Connection Abnormal
OMRON fw-927 — 1394 Communications Timeout / Fault
ROKAE 50100 — Fieldbus / Ethernet Communication Timeout
Staubli fieldbus33 — Internal Error on Fieldbus Board — Status 33
Staubli teachcomm — Teach Pendant (WMS) Communication Lost

Code not listed? Tell us the alarm code, the robot model and what the machine was doing when it fired - phone or video diagnosis is free. +86-20-39029800, WhatsApp +86-188-1886-2860. Or browse the full alarm library by brand.