LEDs and Connectors
2.3 Power connector
Parameter
Nominal value
Input range
Power consumption
Table 2: Power requirements
2.4 9 pin SUB D connector
Pin Number
Signal
1
-
3
RxD/TxD-P
5
0V (potential free 80 mA)
6
5V (potential free 80 mA)
8
RxD/TxD-N
Table 3: Pin Assignment 9 pin SUB D connector
Remark:
To assure correct operation of the PROFIBUS, a terminating resistor must be
mounted at each bus end.
Cable type A
Cable type B
Figure 3: Profibus-Terminator (cable type B is no longer used)
CompactRIO PROFIBUS DP-Installation Instruction-V1.6/03.03.2010© COMSOFT
4
Value
24 Volts DC
11 – 30 Volts DC
2.5 W in Active mode
(Receiving and
Transmitting)
390 Ω
+5V
390 Ω
Business Confidential/COMSOFT Proprietary
Function
shielding
Data+
Feeding of bus terminator
Feeding of bus terminator
Data-
220 Ω
Data
Data-
150 Ω
+
Installation Instruction
Direction
Input/Output
Input
Output
Input/Output
390 Ω
0V
390 Ω