Interfaces, Networks and Data Communication for the S7-400
5-2
Automation System S7-400 Configuration and Use
A5E0044271 1-02
5.1 The Right Solution for Every Communication Task.
Introduction
The demands placed on modern automation systems can no longer be met by
centralized solutions alone. But relying on autonomous systems and subsystems
brings problems of data communication among the individual units.
Communication Solutions
S7-400 offers numerous solutions for communication. The following characteristics
can be underscored:
• A tiered range of performance (volume capabilities)
• A convenient user interface integrated in STEP 7
• Integration of communication tasks in the components
Data communication can be performed via the following:
• Integrated MPI/DP interfaces in the CPU
• Communication modules for a variety of networks
-- CP 443-5 on PROFIBUS
-- CP 443-1 on Industrial Ethernet
-- CP 440, CP 441-1 and CP 441-2 for point-to-point -connection
Using system functions (SFCs and SFBs), you can perform data communication
using the user program and a variety of communication networks. The SFBs and
SFCs are integrated in the operating system of the CPU.
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