ProSoft Technology PLX81-EIP-61850 - Manual (Page 86)

Reference PLX8x-EIP-61850 ♦ Communication Gateway
User Manual Server to
IEC 61850 Client
Page 86 of 167 ProSoft Technology, Inc.
July 2, 2015
5.4.3 SNTP/NTP
This section covers the gateway’s implementation of IEC 61850-7-2 Clause 18:
Time and time-synchronization model (SNTP/NTP).
The IEC 61850 driver in the gateway i
s dependent upon the gateway’s
SNTP/ NTP server. The gateway can set it’s time by making periodic requests for
the current time to a Coordinated Universal Time (UTC) system. You can define
a NTP server in ProSoft 61850 Configuration Manager. It must be synchronized
to some known level of accuracy, and the elapsed seconds received by the NTP
server are since a defined Epoch, and the time server shall indicate
LeapSecondsKnown (true or false).
There are two configuration parameters:
 SNTP/NTP server Address
 SNTP/NTP server Update Time (in minutes)
The ProLinx hardware is 17 seconds off per day for a Linux clock. If better time
sync is required, you must perform the setup for the SNTP/NTP time server
either from the internet or local clock that can sync up every one (1) minute as
configured on the gateway.