Legend For Figures Used In This Documentation; Network Environment Within A Domain - Siemens SIMATIC PCS 7 Function Manual

2.8.2

Legend for figures used in this documentation

Legend for configuration figures used in this documentation
Note
The individual components are identified in the figures below as follows:
● Dashed line starting at a component
● Arrow pointing to a component
● (M) at a component next to a bus system
2.8.3

Network environment within a domain

Central plant clock
The SICLOCK TC 400 is particularly suitable for operation as a central plant clock within a
domain, as the SICLOCK has four independent Ethernet interfaces.
Time synchronization (V8.0)
Function Manual, 03/2012, A5E02779849-02
Components with red dashed lines leading away from them are time masters in this
network.
Components to which an arrow is pointing are time slaves in this network. (Exception: (M)
on a component)
An (M) at a component next to a bus system signifies that this component is a cooperative
time master for this bus system.
2.8 Network environment of a PCS 7 plant
Fundamentals
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