D Glossary
A-303
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
S5S5 connection
see ISO transport connection
Subnet mask
The subnet mask specifies which parts of an IP address are assigned to the
network number. The bits in the IP address whose corresponding bits in the
subnet mask have the value 1 are assigned to the network number.
Subnet number
A -> system consists of several -> subnets with unique subnet numbers.
TCP/IP
TCP = Transport Connection Protocol; IP = Internet Protocol
UDP
User Datagram Protocol. User Datagram Protocol: datagram service for simple
internetwork transmission without acknowledgment.
D.3 PROFINET
Component based Automation
Concept for implementing modular, distributed automation applications on the
basis of open standards and data communication. Component based Automation
is an expansion of Totally Integrated Automation (TIA).
Device
In PROFINET CBA: part of the PROFINET component that contains the
hardware-specific data of the PROFINET component. In SIMATIC iMap, a
device is the software representation of the physical device for which the
PROFINET component was created. It is displayed in the network view of
SIMATIC iMap as an object with one or more bus attachments. The following
distinction is made according to the communication functionality: -> PROFINET
devices and -> PROFIBUS devices.
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