
3
3.6
Internal basic circuit diagram
Figure 3-3
Internal basic circuit diagram
+24 V (U )
S
+24 V (U )
M
Logic
OPC
75560021
+24 V (U )
M
+24 V (U )
S
U
L
Local bus
Key:
Protocol chip
(bus logic including voltage conditioning)
Terminal point
Logic circuit
Potential or data jumpers with jumper contacts
on the side
Optocoupler
Cable(s); x indicates the number of cables
Forcibly guided N/O contact
COMBICON connection
O P C
L o g i c
x
3-6
User manual IC220SDL840 -
May 2018
GFK-2734