201515

BICO: Writing to parameter not permitted as the master control is active

Siemens · SINUMERIK 828D CNC Control

What does 201515 mean?

This alarm occurs when an attempt is made to change the number of Command Data Sets (CDS) or copy from a CDS while the master control is still active. Parameters related to BICO (Bi-directional interconnection) configurations cannot be altered under these conditions to maintain system integrity. This is a functional restriction rather than a critical fault, typically requiring no immediate action as the system prevents an invalid operation.

Complete Troubleshooting Guide

  1. 1

    Ensure the master control is deactivated or in a safe state before attempting to change CDS numbers or copy from CDS.