Communications configuring
3-2 System- and communication configuring D7-SYS - SIMADYN D
Edition 12.2003
3.1 Introduction
3.1.1 Basic information on communications
Communications permit information and data to be transferred to other
systems and devices.
To establish communications, the following are required:
• a communications utility must be configured together with a link
• a communications interface must be available
The communications utility defines the information contents
(e. g. process data) during communications.
The coupling defines the hardware (e. g. CS7/SS52) and the data
transfer protocol (e. g. PROFIBUS DP) for communications.
The particular application and communication capabilities of the partner
define the communications interface and the data coupling.
3.1.1.1 Overview of the various data couplings
Couplings are configured in the CFC application using the central
coupling blocks.
Used for the
communications
partner
• CPU-internal to test transmitters/receivers
Hardware required
• CPU
Communications
utility
• Process data
Central coupling
block
• @CPN
Features
• SIMADYN D-internal memory coupling
Table 3-1 CPU-local coupling
General
information
Communications
utility
Coupling
Couplings and
communication
interfaces
General
CPU-local coupling
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