RCP Serial Line Time Reports

The RCP serial line can receive time reports. You can check the time sent from the RCP and the time error between the host system time and the RCP time. You can also reset the system time to match the time reported from the RCP or configure automatic time updates.

All automatic updates by IRIS are made only if the time error is 2 ... 5 seconds. This compensates for the slow drifts that are typical of computer clocks. However, when automatic time setting is first invoked, there is usually an error greater than 5 seconds.

In this case, the Time Set menu is a convenient way to force synchronization, after which the automatic time resetting tracks the time.

  1. For the question Operating system's time, select Setup > General.

    See IRIS General Setups.

  2. To show RCP time settings, select Options > Time Set.
    Last Reported Time
    The last time report that was received from the RCP.
    Seconds from Last Report
    The number of seconds elapsed since the last time report.
    Time Error
    Defined as the system clock minus the RCP time, for example, for positive numbers the system time is fast.

    If the fields are blank, then you are not receiving the time from the RCP. Check with your system manager to see if your RCP has this feature.

  3. If the time is received from the RCP, select the Set Time button to reset the system time to match the RCP time.