EL
ErrorLib
Brands
||
  1. Home
  2. Wago
  3. Modular I/O System PROFIBUS DP
  4. BUS-LED 1-1
About·Privacy·Terms

ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

BUS-LED 1-1

Insufficient configuration data (Fault code 1, argument 1)

Wago · Modular I/O System PROFIBUS DP

What does BUS-LED 1-1 mean?

The Fieldbus Coupler has insufficient configuration data for operation. This issue typically arises if the PROFIBUS GSD file is defective or if parameter data was entered improperly during the configuration process, preventing proper initialization of the coupler.

Common Causes

  • Defective GSD file used during PROFIBUS configuration
  • Improper or incorrect entry of parameter data during coupler configuration

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Get in contact with WAGO support.

Browse all codes in this manual (21)
Verified technical data. Last updated: April 2026

Related Faults

BUS-LED 1-2Excessive configuration data (Fault code 1, argument 2)BUS-LED 2-nFaulty configuration byte n (Fault code 2, argument n)BUS-LED 3-1Insufficient configuration data (Fault code 3, argument 1)
Source: Wago Modular I/O System PROFIBUS DP
Open Manual (Page 98)Search more codes in this manual