Pin Allocation Of The Fieldbus Interface - Festo CPX-FB6 Manual

1. Installation

1.3.2 Pin allocation of the fieldbus interface

Bus connection incoming
Plug Pin
1
2
3
4
5
6
7
8
9
Housing
1)
The incoming interface is galvanically separated from the CPX peripherals. The plug housing is
connected via an R/C combination to the FE of the CPX terminal.
Bus connection continued
Socket Pin
1
2
3
4
5
6
7
8
9
Housing
1)
The CPX terminal contains the protocol chip SUPI3-OPC
additional connected Interbus stations. There is therefore no need for a bridge between pin 5 and
pin 9.
Tab. 1/8: Pin allocation of bus connection
Festo P.BE-CPX-FB6-EN en 1207c
1)
Sub-D plug type
FBS-SUB-9-BU-IB-B
DO
DI
GND
/DO
/DI
Clamp strap
Sub-D plug type
FBS-SUB-9-GS-IB-B
DO
DI
GND
/DO
/DI
Clamp strap
Interbus Designation
DO1 Data out
DI1 Data in
GND Reference conductor/ground
n.c. Not connected
n.c. Not connected
/DO1 Data out inverse
/DI1 Data in inverse
n.c. Not connected
n.c. Not connected
Screening Connection via R/C combina-
tion to FE of the CPX terminal
Interbus Designation
DO2 Data out
DI2 Data in
GND Reference conductor/ground
n.c. Not connected
+ 5 V Detect station
/DO2 Data out inverse
/DI2 Data in inverse
n.c. Not connected
RBST Detect station
Screening Connection to FE of the CPX ter-
minal
.
This ensures automatic detection of
1)
1)
1-17