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OTMC 100 Series User Manual
GM priority 1
GM priority 2
IEEE C37.238
grandmaster ID
GM time inaccuracy [ns]
Network time inaccuracy
[ns]
48
Displays the priority 1 and 2 of the current grandmaster clock. If more
than one PTP grandmaster clock is available in the network, a clock
with a lower Priority 1 value will always be the preferred master clock
over a clock with a higher Priority 1 value (see IEEE 1588-2008, clause
6.6.2.3). A value in the range from 0 to 255 may be assigned to the
Priority 1 parameter (see IEEE 1588-2008, clause 7.6.2.2).
The Priority 2 parameter (see IEEE 1588-2008, clause 7.6.2.3) is used
if several devices have the same Priority 1 parameter value and the
same clock quality (class, accuracy and variance). The Priority 2
parameter thus allows a finer grained ordering among otherwise
equivalent clocks (see IEEE 1588-2008, clause 6.6.2.3). Lower values
take precedence.
Displays the grandmaster identity announced in IEEE C37.238 TLV. By
sending this ID, the current grandmaster clock identifies itself as a valid
power profile grandmaster. A power profile slave will ignore all masters
that do not provide a setting for this field. Only available for Power
Profile (OTMC 100p only).
Displays the maximum time inaccuracy in ns that the current
grandmaster clock contributes to the network time inaccuracy. See
IEEE C37.238-2011, clause 5.13. Only available for Power Profile
(OTMC 100p only).
Displays the network time inaccuracy of the current grandmaster clock
in ns announced in IEEE C37.238 TLV. See IEEE C37.238-2011,
clause 5.13. Only available for Power Profile (OTMC 100p only).
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