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Description
2.3
Time receivers
The time receivers in the plant are connected solely via Ethernet.
2.3.1
Plant synchronization via Ethernet
Physical access
An Ethernet port with the following specification is provided to enable physical
access to the network:
100Base-TX via RJ-45 socket
Protocols
The following protocols are implemented:
NTP server according to RFC2030
Any/unicast mode
Any/unicast mode with local time
Multicast mode
Multicast mode with local time
Time synchronization in the SIMATIC procedure
PCS7-compatible mode
S5-compatible mode
Thetime message frames can be transmitted to each Ethernet port individu-
ally either every second or every 10 seconds.
2-1
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