Connecting The Bus Coupler As An Intermediate Station - Aventics PROFIBUS DP Instrucciones De Servicio

BU S I N
X71
2 1
3 4
5
BU S O UT
X72
1 2
5
4 3
1
X71
X72
2
X10
AVENTICS | PROFIBUS DP | R412009414-BDL-001-AE
Tab. 5: Assignment X71 (BUS IN) and X72 (BUS OUT), M12, B-
coded
Pin Signal Meaning
1 VP Supply voltage + (P5V)
2)
2 RxD/TxD-N Receive/send data N, data line A (green)
3 DGND Reference potential to VP, 0V
2)
4 RxD/TxD-P Receive/send data P, data line B (red)
5 Shield Shield or function grounding
Housing Shield or function grounding
1)
The voltage comes from the bus coupler. Output voltage for external bus
components (max. 25 mA).
2)
The assignment of the green bus cable wire to data line A (RxD / TxD-N) and of
the red wire to data line B (RxD / TxD-P) is not standardized. AVENTICS
recommends the assignment shown in the table.
When using a cable with a filler cord, this can be additionally
connected to pin 5 on the bus plug (X71, X72).
The connection technology and plug assignment comply
with the specifications in the 'Interconnection Technology'
technical directives (PNO order no. 2142).
6.3.2 Connecting the bus coupler as an intermediate
station
1. Set up the correct pin assignment (see Tab. 5 on page 65) on
the plug connections if you do not use pre-assembled
wiring.
2. Connect the incoming bus connection to X71 (1).
3. Connect the outgoing bus cable with the next module using
the X72 output (2).
4. Connect the shield on both sides of the bus cable directly to
the plug housing (EMC housing) if non-pre-assembled
cables and plugs with metal housing are used. This protects
data lines from terminal interferences.
Ensure that the plug housing is securely fitted to the bus
coupler housing.
Assembly
1)
1)
65