User's Manual

Doc.: HD0389-00-Manuale_TL_GWCxxxx_r.0.1_EN.doc-00 17/04/2011 Page 38 of 49
PROFIBUS network topology
Note: the first and last node should have ending resistors inserted
Rx
1
VCC
8
6
7
RE
2
DE
3
Tx
4
GND
5
NODO #1
220R
390R
390R
+V (5V)
DGND
Rx
1
VCC
8
6
7
RE
2
DE
3
Tx
4
GND
5
NODO #n
220R
390R
390R
+V (5V)
DGND
Rx
1
VCC
8
6 7
RE
2
DE
3
Tx
4
GND
5
NODO #2
Rx
1
VCC
8
6 7
RE
2
DE
3
Tx
4
GND
5
NODO #3