Omicron Lab OTMC 100 Series User Manual page 64

OTMC 100 Series User Manual
Domain number
Grandmaster ID
Total time inaccuracy
Network time inaccuracy
Engineered network time
inaccuracy
Local time inaccuracy
Offset from master limit
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Use this field to specify the domain number. The domain number
specifies the PTP domain (see IEEE 1588-2008, clause 7.1) in which
OTMC 100 participates. All clocks in a network that shall be
synchronized to each other must participate in the same PTP
domain, i.e., have the Domain number parameter set to the same
value.
Use this field to specify the grandmaster identity to be transmitted in
IEEE C37.238 TLV. By sending this ID, OTMC 100 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 PTP profiles Power (C37.238-2011) and Power (C37.238-2017)
(OTMC 100p only).
IEEE C37.238 totalTimeInaccuracy provides a mechanism using the
profile-specific IEEE_C37_238 TLV defined in clause 6.2 for
applications to determine whether the time inaccuracy in the
delivered time is acceptable. The total time inaccuracy comprises the
sum of the following three values:
- Grandmaster time inaccuracy
- Distribution time inaccuracy
- Source time inaccuracy
These three items are summed in the totalTimeInaccuracy field. This
field is initialized by the grandmaster to the grandmaster time
inaccuracy plus the source time inaccuracy, and then incremented by
TCs and BCs
Only available for PTP profile Power (C37.238-2017) (OTMC 100p
only).
Use this field to specify the network time inaccuracy in ns to be
transmitted in IEEE C37.238 TLV. See IEEE C37.238-2011, clause
5.13. Only available for PTP profile Power (C37.238-2011)
(OTMC 100p only).
Use this field to specify the engineered network time inaccuracy in
ns. This value is set at the end device to represent the worst network
time inaccuracy from this device to all preferred grandmasters. See
"EngTimeInacc" in IEEE C37.238-2011. Only available for PTP
profile Power (C37.238-2011) (OTMC 100p only).
Use this field to specify the maximum time inaccuracy in ns that the
device contributes to the network time inaccuracy. See
IEEE C37.238-2011, clause 5.13. Only available for PTP profile
Power (C37.238-2011) (OTMC 100p only).
Use this field to specify the offset from master limit in ns to generate
OfstExceedsLimit event. If this value is zero, no event is generated.
See "OfstExceedsLimit" in IEEE C37.238. Only available for PTP
profiles Power (C37.238-2011) and Power (C37.238-2017)
(OTMC 100p only).
OMICRON