Remark 5: Reaction on Floating Point Exceptions

Behavior of PM59x regarding floating point exceptions can be set. In standard case, any floating point exception triggers an E2 error: class=E2, err=38, d1=9, d2=31, d3=31.

The CPU switches to STOP.

CPUs without floating point processor PM57x and PM58x do not trigger a floating point exception.

If the parameter Reaction on floating point exceptions is set to No failure, no error is triggered in case of a floating point exception. The CPU remains in RUN mode.

By means of the function block FPU_EXCEPTION_INFO: FPU_EXCEPTION_INFO