Safety engineering
Safe bus interfaces
PROFIsafe connection
1
97
EDS94AYAE EN 6.0
Status byte
For the PROFIsafe V1 mode only the indicated bits of the PROFIsafe status byte are
supported:
Assignment Bit
Byte 7 6 5 4 3 2 1 0
4 − − − FV_activated COM−Failure WD-Timeout COM−Failure CRC − −
Tab. 1−13 Structure of the PROFIsafe status byte in V1 mode
Bit coding − status byte
Bit Name Description
2 COM−Failure CRC Status after communication error is active.
3 COM−Failure
WD-Timeout
Status after time−out is active.
4 FV_activated The PROFIsafe input data is deactivated.
− Reserved for future extensions
Tab. 1−14 Detailed specification of the status byte in V1 mode
For the PROFIsafe V2 mode only the indicated bits of the PROFIsafe status byte are
supported:
Assignment Bit
Byte 7 6 5 4 3 2 1 0
4 − cons_nr_R Toggle_d FV_activated WD_timeout CE_CRC − −
Tab. 1−15 Structure of the PROFIsafe status byte in V2 mode
Bit coding − status byte
Bit Name Description
2 CE_CRC Status after communication error is active.
3 WD_timeout Status after time−out is active.
4 FV_activated The PROFIsafe input data is deactivated.
5 Toggle_d Change shows increase of the consecutive number.
6 cons_nr_R Consecutive number has been reset.
− Reserved for future extensions
Tab. 1−16 Detailed specification of the status byte in V2 mode
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