Siemens SIRIUS 3RK3 Equipment Manual page 119

Internal circuit diagram
Figure 5-20
Terminal designations of the DP interface module
Terminal
L+
M
FE
Interfaces of the DP interface module
Interface
X1
X2
PROFIBUS DP
Operating elements of the DP interface
Element
SET
MODE
Display elements of the DP interface module
Element
DEVICE
BF
SF
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006
DP interface internal circuit diagram
Meaning
Power supply
Ground
Functional ground
Meaning
Device interface
System interface
9-pin sub D socket
Meaning
Operating the display
Operating the display
Meaning
Status
Bus error
Group error
Description of the hardware
5.1 Description of the individual modules
Explanation
24 V DC
Ground to 24 V DC
Shielding, equipotential bonding
Explanation
Connection of PC / PG, diagnostics display
Safety relay connection
Connection to PROFIBUS DP
Explanation
See Chapter "Operating the 3RK35 DP interface
(Page 197)".
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