Rockwell Automation AADvance Controller Configuration Guide - Manual (Page 64)

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4-24 Document: 553633
ICSTT-RM405f-EN-P
Issue 07
Configuration Guide (AADvance Controller)
Time Synchronization (SNTP)
The AADvance controller supports the Simple Network Time Protocol (SNTP)
service that can circulate an accurate time around the network. It can be configured to
operate as a SNTP client or server.
As an SNTP client the controller will accept the current time from external Network
Time Protocol (NTP) and SNTP network time servers. The SNTP clients settings
tell the controller the IP address of the external server; the version of SNTP offered
by the server; and the operating mode for the time synchronization signal that the
processors will use for their real time clock. As a client the processor module can be
configured as a unicast or broadcast client.
The AADvance controller can also fulfill the role of one or more SNTP servers (one
for each processor module) to provide a network time signal throughout the network.
To enable server time on an interface it is necessary to specify the direct broadcast
address for that interface. This works for broadcast or unicast modes and when
configured as a broadcast server it can respond to Unicast requests from clients.
Note: To set up SNTP you need to connect your controller to a suitable network
using one of the Ethernet ports. The network must be connected to an external NTP
server or have NTP loaded on to it.
Configure the Controller as an SNTP Client
To configure the SNTP clients service do the following:
1) Select the SNTP Clients tab.
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The SNTP Clients Editor dialog box opens.
2) Set the E1-1 and E1-2 Address fields to the IP addresses of the network time
server.