Festo CPX-P, Руководство пользователя

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2018/04 – Subject to change 49
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Terminal CPX-P
Technical data – Bus node CPX-FB33
Bus node for operating the CPX-P
valve terminal on PROFINET.
The bus node is provided with system
supply via the interlinking block and
processes communication with the
I/O modules.
The status of the CPX-P terminal is
displayed as a common message via
four CPX-P-specific LEDs.
The fieldbus communication status is
displayed via three bus-specific LEDs.
Application
Bus connection
The bus connection is established via
two M12 sockets, D-coded to
IEC61076-2-101 with IP65, 67
protection.
Both connections are equivalent
100BaseTX Ethernet ports with
integrated auto MDI functionality
(cross-over and patch cables can be
used) that are brought together via an
internal switch.
Maximum segment length 100 m
Baud rate 100 Mbps
PROFINET implementation
The CPX-FB33 supports the PROFINET
protocol based on the Ethernet
standard and the TCP/IP technology to
IEEE802.3.
This guarantees a data exchange with
a high data transmission rate, for
example I/O data from sensors,
actuators or robot controllers, PLCs or
process equipment. In addition, non-
real-time critical information such as
diagnostic information, configuration
information, etc. can be transferred.
The Ethernet bandwidth is sufficient to
transfer both data types (real-time and
non-real-time) in parallel.
The bus node features LEDs for bus
status and CPX-P peripheral informa­
tion as well as switch elements,
memory stick and a diagnostic inter­
face. The purpose of the memory stick
is to guarantee fast replacement of the
bus node in the event of an error.
PROFINET provides the user with
access to all peripherals, diagnostic
data and parameter data of the CPX-P
valve terminal. The bus node can be
used as a remote I/O or remote con­
troller. All information relevant to the
CPX-P can be read out and, depending
on the function, changed via an
operator unit (CPX-MMI).
Points to note in connection with CPX-CEC
When a bus node is combined with a
control block (CPX-CEC, in the fieldbus
remote controller operating mode), the
connected I/Os and/or valves, sensors
and actuators are controlled via the
CPX-P control block.
In this case, the bus node only
provides the communication interface
to the PLC.
Communication between the control
block and CPX-P bus node takes place
by interlinking the CPX-P modules and
takes up the following address
capacity in the CPX-P system:
8 byte outputs
8 byte inputs
The remaining address capacity of the
control block or CPX-P system for
actuating the peripherals is:
56 byte inputs
56 byte outputs