Beckhoff EL9930, Руководство по эксплуатации

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PROFIsafe configurations
EL9930 27 Version: 1.2.0
Fig. 19: Valid PROFIsafe configuration with EL9930 - example 3
CX controller with extension via EK1100
If, in the case of a CX controller with a PROFIBUS/PROFINET interface, the E-bus employed is extended by
an EK1100 coupler, an EL9930 must be used behind the EL6910 and in front of the EK1100, as otherwise
the PROFIsafe telegram would leave the E-bus via EtherCAT.
Fig. 20: Valid PROFIsafe configuration - example 4