How often will an Automation Server ask the NTP server for the time?

Issue

If the AS is configured to get the time from an NTP server the customer need to know how often the AS will ask the NTP server for the time. 
 

Product Line

SmartStruxure Solution

Environment

  • Workstation 
  • Automation Server
  • Automation Server Premium (AS-P)
  • Enterprise Server

Cause

In version 1.4, the AS asked the NTP server 1 time per minute. Starting in version 1.5, this was changed so the AS is using the standard solution for the NPT protocol.

Resolution

When using the standard solution in the NTP protocol as the AS does starting in version 1.5, it depends on how much the AS drifts from the NTP server. The faster the AS drifts, the more frequently the time is updated.

 

For more information regarding Network Time, please see WebHelp article 6370 and corresponding articles.