F01001

FloatingPoint exception

Siemens · DCM

What does F01001 mean?

An exception, such as an invalid operation, division by zero, overflow, underflow, or imprecise result, occurred during a FloatingPoint data type operation. This error can originate from the base system or a specific application like FBLOCKS or DCC. The fault value (r0949) and r9999 provide detailed information about the cause and program counter at the time of the exception, indicating a critical calculation error.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Upgrade the firmware of the Control Unit to a later version, as this may contain fixes for underlying software calculation issues.

  2. 4

    If the issue continues, contact the Siemens Hotline for an in-depth analysis of the exception and application logic.

Source: Siemens DCM
View Official PDF