Chapter 4. Web Configuration & Operation
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CHAPTER 4
WEB OPERATION & CONFIGURATION
PStat:
Parents Stats (always false).
Var:
It is observed parent offset scaled log variance.
Change Rate:
Observed Parent Clock Phase Change Rate. i.e. the slave clocks rate offset compared to the master. (unit
= ns per s).
Grand Master Identity:
Clock identity for the grand master clock, if the local clock is not a slave, the value is the clocks
own id.
Grand Master Clock Quality:
The clock quality (Clock Class, Clock Accuracy and OffsetScaledLog Variance) announced
by the grand master.
Pri1:
Clock priority 1 announced by the grand master.
Pri2:
Clock priority 2 announced by the grand master.
Clock Time Properties Data Set:
The clock time properties data set is defined in the IEEE 1588 Standard. The data set
is both configurable and dynamic, i.e. the parameters can be configured for a grandmaster. In a slave clock the
parameters are overwritten by the grandmasters timing properties. The parameters are not used in the current PTP
implementation.
Unicast Slave Configuration:
When operating in IPv4 Unicast mode, the slave is configured up to 5 master IP
addresses. The slave then requests Announce messages from all the configured masters. The slave uses the BMC
algorithm to select one as master clock, the slave then request Sync messages from the selected master.
Duration:
Configure the number of seconds a master is requested to send Announce/Sync messages. The request is
repeated from the slave each Duration/4 seconds.
ip_address:
Configure IPv4 Address of the Master clock.
grant:
The granted repetition period for the sync message.
CommState:
The state of the communication with the master, possible values are:
IDLE:
The entry is not in use.
INIT:
Announce is sent to the master (Waiting for a response).
CONN:
The master has responded.
SELL:
The assigned master is selected as current master.
SYNC:
The master is sending Sync messages.
Ports Configuration
Click on “Ports Configuration” button to configure timing values.
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