Network Time Service Diagnostics
Original instructions
About us
Diagnosing the Network Time Service
Use the Network Time Service Diagnostic web page to display dynamically generated data describing the operation of the network time protocol (NTP) service that you configured in the Network Time Service page in Control Expert.
NOTE: The Email service is enabled in the Services page, and the configuration settings are input in the Network Time Service Configuration page of the module DTM.
The NTP Diagnostics web page looks like t his:
Click the Reset Counter button to reset to 0 the Network Time Service Statistics.
To open this page:
Step
Action
1
Starting at the Home page, click the Diagnostics main menu item. The Diagnostics page opens.
2
On the left side of the Diagnostics page, select Ethernet → NTP Diagnostics.
3
If necessary, type in the HTTP web access password.
NOTE: The default password is USER.
Network Time Service Diagnostic Parameters
Time synchronization service parameters are in the table:
Parameter
Description
Network Time Service:
Status
Operational status of the service in the module:
  • Operational
  • Service Disabled
Date and Time Status:
Date:
System date
Time:
System time
NOTE: Red text indicates the network time server is not available.
DST Status
The actual working status of the automatic daylight savings service:
  • ON = automatic adjustment of daylight savings is enabled and the current date and time reflect the daylight savings time adjustment
  • OFF = automatic adjustment of daylight savings is disabled; or automatic adjustment of daylight savings is enabled, but the current date and time may not reflect the daylight savings time adjustment
Time Zone
Time zone plus or minus Universal Time, Coordinated (UTC)
NTP Server:
Status
Connection status of the NTP server:
  • check mark = the NTP server is reachable
  • no check mark = the NTP server is not reachable
IP Address
The IP address of the NTP server
Type
The NTP server currently active:
  • Primary
  • Secondary
Network Time Service Statistics:
Number of Requests:
Total number of client requests sent to the NTP server
Number of Responses:
Total number of server responses sent from the NTP server
Number of Errors:
Total number of unanswered NTP requests
Last Error
Last detected error code received from the NTP client:
  • 0: good NTP configuration
  • 1: late NTP server response (can be caused by excessive network traffic or server overload)
  • 2: NTP not configured
  • 3: invalid NTP parameter setting
  • 4: NTP component disabled
  • 7: unrecoverable NTP transmission
  • 9: invalid NTP server IP address
  • 15: invalid syntax in the custom time zone rules file