Xylem 205547 Profibus Communication Modules - Manual (Page 17)

2.6.2 Three Connected Units
This example illustrates connection, termination and ID configuration of three
units each with a communication module and a PLC.
ID (Address) settings
Three Connected Units
Unit #1 Profibus ID=1
Unit #2 Profibus ID=2
Unit #3 Profibus ID=3
Default ID setting is 99
B
A
S h i e l d
G N D
Lo op o ut
L oo p In
N C
S h i e l d B t B A
A
t
B
A
Shield
GND Lo
op
o ut L
oo
p In
NC
Shield
Bt
B
A
At
B
A
S h i e l d
G N D
Lo op o ut
L oo p In
N C
S h i e l d B t B
A
A
t
B
A
Shield
GND Lo
op
o ut L
oo
p In
NC
Shield
Bt
B
A
At
B
A
S h i e l d
G N D
Lo op o ut
L oo p In
N C
S h i e l d B t B
A
A
t
B
A
Shield
GND Lo
op
o ut L
oo
p In
NC
Shield
Bt
B
A
At
Display unit
B
GND
A
PLC
At
Bt
2. Profibus Communication Modules
Communication Modules