Network Time Service
Original instructions
Open the Page
Access the Network Time Service page from the Diagnostics tab (Menu → Services → NTP):
Diagnostic Information
This page displays information about the network time service. Configure this service in Control Expert.
The Network Time Service synchronizes computer clocks over the Internet for the purposes of event recording (sequence events), event synchronization (trigger simultaneous events), or alarm and I/O synchronization (time stamp alarms):
Field
Description
Service Status
Running
The SNTP service is correctly configured and running.
Disabled
The SNTP service is disabled.
Unknown
The SNTP service status is unknown.
Server Status
green
The server is connected and running.
red
A bad server connection is detected.
gray
The server status is unknown.
Server Type
Primary
A primary server polls a master time server for the current time.
Secondary
A secondary server requests the current time only from a primary server.
DST Status
On
DST (daylight saving time) is configured and running.
Off
DST is disabled.
Unknown
The DST status is unknown.
Current Date
This is the current date in the selected time zone.
Current Time
This is the current time in the selected time zone.
Time Zone
This field shows the time zone in terms of plus or minus Universal Time, Coordinated (UTC).
NTP Service Statistics
These fields show the current values for service statistics.
Number of Requests
This field shows the total number of requests sent to the NTP server.
Success Rate
This field shows the percentage of successful requests out of the total number of requests.
Number of Responses
This field shows the total number of responses received from the NTP server.
Last Error
This field contains the error code of the last error that was detected during the transmission of an email message to the network.
Number of Errors
This field contains the total number of SNTP messages that could not be sent to the network or that have been sent but not acknowledged by the server.