Festo CPX-FB36 - Page 48

2. Preparing for commissioning
2-6
Festo CPX-FB36-EN en 1611a English
Simplified configuration of “QuickConnect” at the bus node
CPX-FB36:
 Set the CPX parameter “IP configuration” to “with saved
parameters and QuickConnect”.
With activation of “QuickConnect”, the “Crossover” detection
is deactivated for both network connections. As a result, con
nection X1 runs in the MDI-mode and connection X2 runs in
the MDI-X mode.
This allows a line topology to be constructed with patch
cables:
MDI
MDIX
MDI
MDIX
MDI
MDIX
X1
X2
X1
X2 X1
X2
TP1
TP2
123
1 PLC or switch
2 Patch cable
3 I/O device (e.g. B.CPX-FB36)
Fig. 2/1: QuickConnect line topology with patch cables
The bus node corresponds to a “Class A device” in accord
ance with the EtherNet/IP specification. When switched on,
the bus node requires less than 350 ms to accept a TCP con
nection. Due to the rapid establishment of the TCP connec
tion, the detection of already used IP addresses (ACD, “IPAd
dress Conflict Detection”) is not executed completely.
Multiple assigned IP addresses are only detected late. As a
result, the network can be disturbed.
 If IP addresses are correctly assigned in the network, de
activate the ACD via attribute 10 of the TCP/IP interface
object (è C.2.3).