Festo control block CPX-CEC
3.5
Interfaces
3.5.1 Ethernet interface
The Ethernet interface enables a programming device, PC or operator unit to be connected to the Codesys
controller.
The Ethernet interface is designed as an RJ45 socket.
Socket
Pin
Signal
Comment
1
TD+
Transmitted data+
2
TD–
Transmitted data–
3
RD+
Received data+
4
n.c.
Not connected
5
n.c.
Not connected
6
RD–
Received data–
7
n.c.
Not connected
8
n.c.
Not connected
Housing
Screen
Screen
Table: Pin allocation of the Ethernet interface
If the Ethernet interface is not used, seal it with a cover AK-RJ45. This provides protection to IP65/IP67
(
section Ensuring protection to IP65/IP67).
Ethernet cable
Use connecting cables with the following specification:
–
Screened flexible Ethernet round cable from category 5
–
Max. outside diameter: 5.4 mm
–
Core diameter: 0.89 ... 1.0 mm AWG24-26
–
Assembly: Via crimp tool to RJ45
Note
If the CPX terminal is fitted onto a moving part of a machine, the Ethernet cable on the moving part
must be provided with strain relief.
Network connection
You will need a patch or crossover cable to connect your Codesys controller to a network or PC. The
interface automatically detects which cable is connected and automatically switches the signals.
Note
•
Use the RJ45 plug from Festo to ensure protection to IP65/IP67 (
section Ensuring protection
to IP65/IP67):
–
FBS-RJ45-8-GS
•
Refer to the fitting instructions for the plug.
Figure: RJ45 plug FBS-RJ45-8-GS
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