Process Image Of The Ax8Xxx-X1Xx; Error Reaction; Fig. 19 Process Image Of The Ax8206-0100-0101 - Beckhoff AX8-1 Series Documentation

6.1.1

Process image of the AX8xxx-x1xx

The process image of the AX8xxx-x1xx contains process data for the FSoE connection to the internal
AX8911. The telegram length is 7 bytes and thus contains 2 bytes of safe user data. The STO signal for axis
A is located in bit 0 in the first byte. The STO signal for axis B is located in bit 0 in the second byte.
Fig. 19: Process image of the AX8206-0100-0101
6.1.2

Error reaction

• Errors in the FSoE slave connection are automatically acknowledged on the slave side (AX8911), since
acknowledgment by the user takes place on the FSoE master side (TwinSAFE logic).
• The rule for all other errors is:
error messages and associated acknowledgments are implemented on the AX8911 TwinSAFE drive
option via the status and control word of the AX8000.
The ErrAck for errors on the AX8911 is implemented via the DS402 control word (bit 7) together with
the reset of the axis via TwinCAT. If an error occurs on the AX8911, a diag message is generated and
the error bit in the DS402 status word (bit 3) is set.
AX8911 - TwinSAFE Drive Option Version: 1.0.0
Use of the STO function
35