1. Installation
1-13
Festo P.BE-CPX-FB32-EN en 1111a
1.3 Connecting the Ethernet fieldbus
1.3.1 Ethernet cable
Note
Faulty installation or high transmission rates may cause
data transmission errors as a result of signal reflections
and attenuations.
Causes of the transmission errors can be:
– incorrect screened connection
–branches
– transmission over long distances
– inappropriate cables
Observe the cable specifications. Refer to the manual for
your control system for information on the type of cable to
be used.
Cable specification Screened, flexible Ethernet round cable of category 5
Max. exterior diameter: 5.4 mm
Wire diameter: 0.89 ... 1.0 mm AWG24-26
Pre-assembly: Plug screwed on,
Type NECU-M-S-D12G4-C2-ET,
Part no. 543109
Note
If the CPX terminal is mounted mov ably into a machine, the
fieldbus cable on the movable part must be provided with
strain relief. Also observe the corresponding regulations in
EN 60204 Part 1.
Applicable for the fieldbus length are the specifications for
Ethernet networks according to ANSI/TIA/EIA-568-B.1
To Next Page
