Siemens SIRIUS 3RK3 Equipment Manual page 45

Component Description
PC cable and adapter •
Memory module
•
•
•
Note: One memory module each is included in the
scope of supply of the 3RK3 central unit.
Interface cover
•
•
Door adapter
•
•
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006
Connection cable for exchanging data between
the PC or programming device and the 3RK3 cen‐
tral unit.
The connection cable connects the interface of
the PC/programming device to the device inter‐
face of the 3RK3 central unit
– RS 232 PC cables
Article number: 3UF7940-0AA00-0, product
version 2 or higher
– USB PC cables
Article number: 3UF7941-0AA00-0
– USB to serial adapter for connecting an
RS 232 PC cable to the USB interface of a PC
Article number: 3UF7946-0AA00-0
External memory module of the 3RK3 central
unit for storing configuration data
The slot for the memory module is located on
the underside of the 3RK3 central unit
Article number: 3RK3931-0AA00
Cover for not assigned system interfaces:
– Protection against dirt
– Compliance with EMC regulations
– Seal to protect interface against unauthor‐
ized access
Article number: 3UF7950-0AA00-0
For bringing out the device interface, e.g. out of
a control cabinet
Article number: 3UF7920-0AA00-0
3.5 MSS 3RK3 system components
Diagram
Overview
45