Properties And Services - Siemens SIMATIC S7-CPs Manual

1 Properties and Services

1 Properties and Services
1.1 Properties of the CP
The CP is intended for use in an S7-400 or S7-400H (fault-tolerant) automation
system. It allows the S7-400 / S7-400H to be attached to Industrial Ethernet.
To set up small local area networks or to connect several Ethernet devices, a
2-port switch with autocrossing and autosensing has been integrated in the CP.
Each port of the switch is designed for simple diagnostics and is equipped with a
combined RXD/TXD / LINK dual LED. For special situations, each port can also be
set to a fixed mode manually using STEP 7, for example 10 or 100 Mbps half
duplex / full duplex.
Each port can be disabled individually in the project engineering.
1.2 Communication services
The CP supports the following communication services:
S PROFINET IO controller
PROFINET IO allows direct access to PROFINET IO devices over Industrial
Ethernet. PROFINET IO can only be used via the ports of the PROFINET
interface.
− Prioritized startup
The CP supports prioritized startup. Per PROFINET IO controller, a
maximum of 32 PROFINET IO devices can be configured that support
prioritized startup. Of these 32 IO devices, simultaneous startup times with
values as low as 0.5 s can be achieved by up to 8 IO devices.
− IRT communication (isochronous real time)
IRT communication is possible in PROFINET IO.
If you are using IRT communication, no media redundancy is supported.
− Shared device
As a PROFINET IO controller, individual submodules of an IO device can be
assigned to the CP. When configuring PROFINET IO systems with shared
IO devices, make sure that you read the information in /7/.
S S7 communication with the following functions:
− PG functions
− Operator monitoring and control functions
− Data exchange over S7 connections.
B−6
CP 443-1 for Industrial Ethernet / Manual Part B
C79000-G8976-C223−06
Release 07/2010