Beckhoff EL9930, Руководство по эксплуатации

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PROFIsafe configurations
EL9930 25 Version: 1.2.0
Fig. 15: Valid PROFIsafe configuration - example 2
CX controller with PROFIBUS/PROFINET-EtherCAT Terminal
The PROFIsafe telegram is transmitted to the TwinCAT runtime only via the E-bus and is then sent to the
fieldbus master EtherCAT Terminal and to the PROFIsafe device via the E-bus. An extension via a further
EtherCAT interface integrated in the CX controller is easily possible as long as no PROFIsafe devices are
present on it.
Fig. 16: Valid PROFIsafe configuration - example 3
4.2 PROFIsafe configurations with EL9930
The use of the EL9930 is necessary for the following configurations, because the PROFIsafe telegram would
also be transmitted via a fieldbus that is not PROFIBUS or PROFINET. Before leaving the E-bus on
EtherCAT, the telegram must be filtered out and copied again into the telegram to the PROFIBUS/
PROFINET master. If this is done in this way the PROFIsafe policy is not violated.