Internal software error

What does F01649 mean?

This fault indicates an internal software issue, likely a buffer overflow during checksum calculations for parameter access or an endless safety loop within the P1 or P2 processors. Errors with r0949 > 100 are for Siemens internal diagnostics. This is a critical internal system error that requires specialized attention.

Complete Troubleshooting Guide

1. 1

   Contact Siemens hotline for further diagnostics and support, providing the r0949 value if available.