Siemens SIRIUS 3RK3 Equipment Manual page 36

Overview
3.1 3RK3 Modular Safety System
Interfaces
The safety relay can be accessed by Safety ES via an RS232, USB or fieldbus interface. The
communication via the fieldbus interface is implemented via an optional interface module.
Unauthorized access to safety functions via fieldbus.
Can Cause Death or Serious Injury.
Unauthorized access to the safety relay via fieldbus, such as PROFINET or PROFIBUS, can result
in configuration changes and overriding of safety functions.
To prevent unauthorized access to the safety relay via the fieldbus, assign a password for
accessing the device in Safety ES. If you operate several safety relays in one fieldbus network,
you must assign a separate password for each safety relay to prevent confusion when accessing
via the fieldbus. In other words, the passwords must not be identical.
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WARNING
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006