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V2
S500
Hardware
1-27 System
Data
S500 / Issued: 01.2007
•
If it is necessary to have an electrical isolation between the I/O terminals of different I/O modules,
several power supply units must be used.
•
There is no electrical isolation between the I/O channels of an I/O module.
Power
DC505-FBP
FBP Terminal Unit TU505/TU506
ZP
supply
DIN
rail
I/O-Bus
FBP
uP
FBP
+
I/O-Bus
Power
supply
Digital I/O
UP
CH-ERRx
ZP
ZP
0V
UP
+24V
Inputs
Inputs/outputs
FBP
1 M
1 M
Figure: Blocks diagram DC505-FBP with FBP, earthing concept