Configuration - Time Sync View
The Time Sync view provides information that is related to
CIP Sync™
time synchronization. Use the Time Sync view to see which device is regulating system time and view information that is related to the CIP Sync™
clocks.Gateway Time Sync View
Parameter | Description |
|---|---|
CIP Sync™ time synchronization | Indicates if Time Synchronization is enabled or disabled on the device. |
UTC system time | Indicates the current system time in Universal Coordinated Time (UTC). The time excludes time zone or daylight savings time offsets. |
Grandmaster Clock | Displays property information for the timeTransmitter clock. |
Description | Displays information about the clock. The timeTransmitter clock is controlled by the vendor of the timeTransmitter clock. |
Identity | Displays the unique identifier for the clock The format depends on the network protocol. Ethernet network encodes the MAC address into the identifier while ControlNet® and DeviceNet® networks encode the vendor ID and serial number into the identifier. |
Class | Displays the measure of the traceability of the clock to primary reference sources. This is pre-defined by the hardware manufacturer. Values are defined from 0 through 255 with zero as the best clock. Clocks with Class values below 128 may only be timeTransmitter clocks. |
Accuracy | Displays the expected absolute accuracy of the clock relative to the clock epoch of January 1, 1970. The accuracy is specified as a graduated scale starting at 25 nsec and ending at greater than 10 seconds or unknown. The lower the accuracy value, the better the clock. |
Variance | Displays the measure of the inherent stability properties of the clock. The value is represented in offset scaled log units. The lower the variance, the better the clock. |
Source | Displays the time source of the clock. The available values are Atomic clock, GPS, Radio, PTP, NTP, HAND set, Other, and Oscillator. |
Priority 1 / Priority 2 | Displays the relative priority of the clock to other clocks in the system. The priority values range from 0 through 255. The highest priority is zero. The default value for both settings is 128. |
Local Clock | Displays property information for the local clock. The definitions for the Identity, Class, Accuracy, Variance, and Source parameters are the same for the local clock and the timeTransmitter clock. |
Synchronization status | Specifies whether the local clock is synchronized or not synchronized with the timeTransmitter reference clock. A clock is synchronized if it has one port in the timeReceiver state and is receiving updates from the timeTransmitter. |
Offset to timeTransmitter | Displays the amount of deviation between the local clock and the timeTransmitter clock in nanoseconds, updated every sync interval. |
Backplane | Displays the current state of the backplane. |
Ethernet | Displays the state of the Ethernet port. |
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