Operating instructions

Description

2-16

SICLOCK

TC400

2.3 Time receivers

The time receivers of the plant can be connected via Ethernet or directly on the

device via point-to-point connections.

2.3.1 Plant synchronization via Ethernet

Physical access

There are four Ethernet interfaces available as physical access to the network

with the following spec

ification:

• 100Base TX via RJ-45 socket

Protocols

The following protocols have been implemented:

• NTP server according to RFC2030

− Any/un

icast mode

− Multicast mode

− Multicast mode with local time

• Time synchronization with the SIMATIC method

− PCS7-compatible mode

− S5-compatible mode

The time message frames can be transmitted to each Ethernet port individu-

ally either every second or every 10 seconds.