SIEMENS
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Siemens IK PI · 2015
PROFINET/Industrial Ethernet
Communication for SIMATIC S7-400
CP 443-1 RNA
2
■
Application
The CP 443-1 RNA enables communication in networks where
extremely high plant availability is important.
It offers communication options with
• PGs/PCs
•
Master computers
•
SIMATIC S5/S7/C7 systems
•
Third-party systems
With the CP 443-1 RNA, an S7-400 station can be connected to
a high-availability PRP network.
Connection of an S7-400 to a PRP network
■
Design
The CP 443-1 RNA offers all the advantages of the
SIMATIC S7-400 system design:
•
Compact design:
- Three RJ45 jacks for connecting to Industrial Ethernet via
two independent interfaces, of which only one can ever be
active;
automatic data rate detection by means of the
autonegotiation and autocross function;
the connection is made via the IE FC RJ45 Plug 180 with
180° cable outlet or via a standard patch cable.
- Diagnostics LEDs for indicating the operational and commu-
nication status
•
Simple installation;
the CP 443-1 RNA is mounted on the S7-400 rack and
connected to other modules by means of the backplane bus.
There are no slot rules.
•
The CP 443-1 RNA can be operated without a fan
•
In combination with the IM 460/461, the CP 443-1 RNA can
also be used in an expansion rack (ER)
•
The module can be replaced without the need for a
programming device
■
Function
A SIMATIC S7-400/S7-400H is connected to two parallel
Industrial Ethernet networks via the two RJ45 connections of the
CP 443-1 RNA. The CP uses the parallel redundancy protocol in
accordance with the IEC 62439-3 standard. It doubles the
message frame and feeds it into the two connected networks.
The access point on the receiver side forwards the first arriving
message frame to the addressee. The frame arriving later is
discarded.
Two separate interfaces:
•
RNA interface with two RJ45 ports with 100 Mbit/s full duplex
with autonegotiation and autocrossover functionality
(no switching functionality) for connection to a PRP network
•
Ethernet interface with an RJ45 port with 10/100
Mbit/s full/half
duplex with autonegotiation and autocrossover functionality
There is only ever one interface active, no IP routing between
the interfaces;
communication per interface only possible to the CPU
in each case.
The PRP functionality can be deactivated, and the independent
Ethernet interface can be activated as an alternative to the
RNA interface. Standard Industrial Ethernet communication is
thus also possible with the CP. Only the communication service
is supported via the ISO transport protocol on the Ethernet
interface, and all other services are deactivated. The CP is thus
also suitable for applications that require qualification and can
manage with the restricted functionality. The qualification costs
can be reduced in this way.
Communication services
on the RNA interface (interface X2)
:
•
Open communication (ISO, ISO on TCP, TCP/IP and UDP):
Multicast with UDP
•
PG/OP communication: across networks by means of S7
routing
•
S7 communication (ISO, ISO on TCP, client, server)
•
S7 H communication for S7-400 H systems beyond network
boundaries (ISO-on-TCP, ISO)
•
Time synchronization by means of the SIMATIC procedure
and NTP
•
IP address assignment via a simple PC tool
•
Security mechanisms: Access protection by means of config-
urable IP access list
Communication services
on the Ethernet interface (interface X1)
:
•
Open communication (ISO only)
•
PG/OP communication: across networks by means of S7
routing (ISO)
•
S7 communication (ISO client only, server)
Diagnostics and network management:
•
Extensive diagnostics functions of all modules in the rack via
Web diagnostics, integrated into STEP 7
•
Integration into network management systems through the
support of SNMP V1;
the following MIBs are supported: MIBII, Automation MIB and
PRP-MIB (IEC-62439-3)
Configuring
of all functions with STEP 7 from V5.5 SP2 plus HSP
Module replacement possible without PG.
Server with
SOFTNET-IE
RNA
PG/PC/IPC with
SOFTNET-IE RNA
SIMATIC
S7-400 with
CP 443-1RNA
G_IK10_XX_10333
Industrial
Ethernet
(LAN B)
Industrial
Ethernet
(LAN A)
SCALANCE
X204RNA
SIPROTEC
PC
© Siemens AG 2014