Rockwell Automation 1783-BMxxx Stratix 5700 Ethernet Managed Switches User Manual - Manual (Page 213)

Rockwell Automation Publication 1783-UM004E-EN-P - June 2014 213
Manage the Switch via the Studio 5000 Environment Chapter 5
Time Sync Configuration Use this feature to synchronize the ports through PTP. PTP synchronizes with
nanosecond accuracy the real-time clocks of the devices in a network. By using
the best master clock selection, the switch identifies the switch port that is
connected to a device with the best clock source. The switch then synchronizes
its internal clock with the best clock source and the switch port is set to master
state. The most precise clock source in the network is referred to as the
grandmaster clock. For more information about this feature, see
CIP Sync Time
Synchronization (Precision Time Protocol) on page 100 .
TIP The information on this tab is not displayed if you are offline.