Safety Integrated - Industry - Siemens

The safety requirements are fulfilled through the evaluation
of a "redundant coarse position" defining the encoder position
in the SIMOTION controller and the fail-safe SIMATIC S7-F controller.
The encoder information (position data and redundant
coarse position) is checked for plausibility on both controllers.
If an error occurs, the corresponding shutdown responses are
triggered by both controllers.
Safe encoder signal and communication data monitoring between
the drive system and the F-CPU according to Cat. 3 is
performed by the SIMATIC F-CPU. To ensure swift error response,
the encoder signal and communication data are monitored
simultaneously in the SIMOTION CPU (by the SIMOTION
function block "C_DRIVE").
Safety functions such as the monitoring of emergency stop
buttons, protective doors resp. valve positions can be implemented
with a fail-safe SIMATIC S7-F using approved function
blocks.
Function Example No. MC-FE-I-004-V11-EN 437
Ex. No.
4