9
5. Wiring
5.1 PROFIBUS cable wiring
The following describes the pin assignments of the PROFIBUS interface
connector on the QJ71PB92V, the PROFIBUS cable wiring
specifications, bus terminator and other information.
(1) Pin assignments of the PROFIBUS interface connector
The following shows the pin assignments of the PROFIBUS interface
connector (D-sub 9-pin female connector).
*1 Optional signal
*2 Signal used to connect the bus terminator
Figure 5.1 PROFIBUS interface connector
Table 5.1 Pin assignments of the PROFIBUS interface connector
Pin
No.
Signal
code
Name
Description
Cable color
1
SHIELD *1
Shield, protective ground
2
Open
3
B/B'
RxD/TxD-P
Receive/send data-P
Red
4
Open
5
C/C’
DGND *2
Data Ground
6
VP *2
V
7
Open
8
A/A’
RxD/TxD-N
Receive/send data-N
Green
9
Open
1
2
3
4
5
6
7
8
9
