Arbiter Systems 1200B, Operation Manual

Page: 112 / 218

94 RS-232C Command Set
Return Single Event
Command: EA
Returns a single event record from the channel A event buffer. The record number (nn) increments once for
every issuance of this command.
Response: mm/dd/yyyy hh:mm:ss.sssssss nnAz
< CR >< LF >
Where: mm = month
dd = day of month
yyyy = year
hh = hour
mm = minute
ss.sssssss = second
nn = Event–Buffer Read Index Number
A = channel A
z = time reference U = UTC, L = Local
= space, Hex 20
< CR > = Carriage Return = Hex 0D
< LF > = Line Feed = Hex 0A
11.2.4 Status Mode Commands
Return Status of Event/Deviation
Command: SA
Returns the event/deviation channel setup information, read index number and write index number.
Response: d, R = nn, S = mm
< CR >< LF >
Where: d = input channel mode: D = PPS deviation, E = event
nn = channel read index (01 to 50)
mm = channel write index (01 to 50)
< CR > = Carriage Return = Hex 0D
< LF > = Line Feed = Hex 0A
NOTE: When nn = mm, the event buffer is empty, i.e., all recorded event data has been read.
Return Clock Status
Command: SC
Returns the current clock status.
Response: g, U=xx, S=nn
< CR >< LF >
Where: g = locked to GNSS: L = locked, U = unlocked
xx = out-of-lock time, up to 99 minutes.
nn = out-of-lock delay: 00 to 99 minutes, OFF = deactivated, ZDL = zero delay
< CR > = Carriage Return = Hex 0D
< LF > = Line Feed = Hex 0A
Return DCXO Status
Command: SD
Returns the residual, corrected DCXO (Digitally Compensated Crystal Oscillator) status in parts per million.
When compared to the 1 PPS.
Response:
± pp.pp PPM < CR >< LF >
Where: pp.pp = DCXO error
< CR > = Carriage Return = Hex 0D
< LF > = Line Feed = Hex 0A