Siemens SIRIUS 3RK3 - 3 RK35 DP Interface Module

5.1.17 3RK35 DP interface module
Figure 5-19 DP interface module
MSS 3RK3 Basic MSS 3RK3 Advanced
MSS 3RK3 ASIsafe
3SK2 safety relay
✓ ✓ ✓
Application
Interface modules are the interface between the safety relay and a higher-level bus system, e.g.
PROFIBUS DP. The safety relay uses them to make diagnostics and status information available
to a higher-level controller. Non-safety-related input and output signals can be exchanged
between the safety relay and a higher-level controller (PLC). In addition, interface modules allow
access with SIRIUS Safety ES for parameterization and diagnostics. In this case, no special PC
cable is needed.
Device power-up of DP interface
Once the hardware has been successfully initialized, the LED and display test is carried out. Then
the connection between the DP interface and the safety relay is established.
After successful startup, the DP interface appears as a PROFIBUS slave on the bus and starts data
exchange if the con󹪝guration is correct.
Properties
The DP interface module has the following properties:
• The DP interface connects the safety relay to PROFIBUS DP and thus with a higher-level
programmable controller or a PG / PC. Using the DP interface, the safety relay can be
con󹪝gured, tested and the con󹪝guration released via PROFIBUS DP.
• Integration into the higher-level control is performed by means of a GSD 󹪝le.
• The properties of the DP interface are set with Safety ES. The address can also be set directly
on the device.
Description of the hardware
5.1 Description of the individual modules
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006 117