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MPS4232
Section 5: Software
RETURNS Prompt when ready to accept a new command
The stascal data is output in the following format:
<ofm>, <msd>, <smd>, <mpd>, <obc>
ofm = Oset From Master. Time that slave and master dier in units of microseconds
msd = Master to Slave Delay. Filtered packet delivery me from master to slave
smd = Slave to Master Delay. Filtered packet delivery me from slave to master
mpd = Mean Path Delay. Filtered mean path delay me
obc = Observed Correcon. The observed correcon of the internal clock in nanoseconds
EXAMPLE SET STAT 0
>
DEFAULT 0
RANGE 0 to 2
NOTES Once set, the MPS will stream this data unl SET STAT 0 is issued. A STOP command will not stop
this stream of data.
COMMAND SST
TYPE Set/Get
DESCRIPTION Sets the me to start scanning as referenced to the PTP grandmaster.
The MPS4200 will use the current PTP me as the scan start me under two condions:
1) When the PTP system is disabled via the SET PTPEN 0 command.
2) When the current me has not been received from the PTP server since the MPS4200 was
powered up. Under this condion the MPS4200 me will start at Jan 1 1970, 0:00:00.000
hours, or epoch 0 me. This most likely will happen when there is no PTP server on the
network. If the MPS4200 was enabled and then disabled aer receiving a me set from the
PTP me server, the MPS4200 will keep me from the last clock seng from the PTP server.
When these two cases are not met, the MPS4200 uses the start me set via the SET SST <me>
and SET SSD <date> seng in the PTP group.
SYNTAX SET SST <hh:mm:ss.f>
Where:
hh = Hours (24 hour format)
mm = Minutes
ss = Seconds
= fracons of a second.
RETURNS Prompt when ready to accept a new command
EXAMPLE SET SST 13:00:00.000
>
DEFAULT 0:0:0.0000
RANGE Any valid me
COMMAND SSD
TYPE Set/Get
DESCRIPTION Sets the date to start scanning as referenced to the grandmaster. See SST for more informaon.