Ntp Platform Service Editor Qnx settings

Settings in the Ntp Platform Service Editor Qnx include the following properties:
  • Enabled

    If true, the host will use NTP to sync its clock with time values retrieved from other servers.

  • NTP Host Modes (for Niagara 4.9 and later):
    • Server (default)

      In addition to being an NTP client, this host will act as an NTP server. This configuration allows local network devices to use the host as a source of NTP data. Local network devices will also be able to query this host for additional NTP runtime information.

    • Server (Time Only)

      In addition to being an NTP client, this host will act as an NTP server. This configuration allows local network devices to use the host as a source of NTP data. Unlike "Server", local network devices will be unable to query this host for additional NTP runtime information.

    • Client

      This host will act as an NTP client only. The NTP data retrieved by this host from configured servers will not be available to local network devices.

  • Sync Local Clock to NTP

    If true, the host will start the Network Time Protocol daemon. This boolean does not directly say that NTP will be used as a time source on this platform, rather, it enables that option.

    Additional properties below will inform the NTP daemon how time information now available will be used.

  • Sync Time At Boot

    Default is false. If true, when the JACE boots, before the stations starts or the ntpd starts, it executes the ntpdate command. This updates the system local time.

  • Use Local Clock as Backup

    If true, should the specified NTP server(s) become unavailable at the time of a poll, the time used is provided by the system clock. This prevents the timing of the polling algorithm in the ntpd (which is executed at specified/changing intervals) from being reset.

    A true value does not result in any change to the NTP daemon’s polling interval (frequency). In fact, by using the local system clock the NTP-calculated polling time would remain the same, and thus not result in more polling.

  • Generate NTP Statistics

    If true, the NtpPlatformService reports whatever information it can about its operation. To access these statistics with the station opened in Workbench, right-click the NtpPlatformServiceQnx and select Views > SpyRemote. Keep in mind that the ntpd is a QNX process; thus Niagara has no control over what it reports.