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Chapter
4
Technical information
EFI
42
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
8012622/Z098/2016-11-07
Subject to change without notice
Technical realization
4.5.6
EFI gateway with safety controllers
A special case is if an EFI gateway and a safety controller are connected to an EFI string.
The device address for the EFI gateway must then be re-configured to 13 so that the
exchange of data does not collide with the safety controller (here Flexi Soft).
In the example the EFI gateway receives the (F)PLC control commands for the Flexi Soft
and routes them to device address 13 on the first EFI string. The Flexi Soft in turn outputs
its control commands for the ESPE connected via the second EFI string for the Flexi Soft to
the ESPE (address 14).
The Flexi Soft receives via EFI the status information for the ESPE (address 1 on the
M4000, address 7 on the S3000).
Via the related first EFI string the Flexi Soft in turn provides its status information to the EFI
gateway, this device then routes the information to the (F)PLC.
Fig. 19: Example data
exchange between an (F)PLC
and an M4000 and an
S3000 via an EFI gateway