Section 4: Software Commands
Page 4-34
8197 Instruction Manual
4.4.10
TIME AND DATE
This command is to read the
Date and Time
. The leading character of the
RS-485 protocol message is the “on-time” point.
rtad
rtadHHMMSSsHHMMDDMMYYYY
where HH = hours 00 to 23, MM = minutes,
SS = seconds, s = sign of Time Zone offset, HHMM = hours and minutes of Time
Zone offset, DD = days, MM = months, and YYYY = year.
4.4.11
TIME ZONE OFFSET
This command allows the user to set the 8197’s clock to local time. All time
stamps will reflect the time zone offset. The default setting is 0, which is UTC
time. NOTE: The GPS time system has no indication for Daylight Savings Time,
if the user wishes to have the time reflect DST they will need to change the time
zone offset twice per year.
wtzoSHHMM
wtzoSHHMM
where S= + or -, and HH = 00 to 23, and MM=00 to 59
4.4.12 WHO
This command is to inform the controller of the vendor and software version.
rwho
rwhoSPECTRACOMMODEL8197VX.XX
Where X.XX is software version.
4.4.13 1PPS
OFFSET
This command is to read or set the
1PPS Offset
. The purpose of this command
is to control the 9600, and 300 or 33.3 Hz outputs. Those outputs are
synchronized to the 1PPS. The 10MHz outputs are not affected by this offset.
The default is 0.
w1poXXXXXX.X
where XXXXXX.X is a number in microseconds.
w1poXXXXXX.X
r1po
r1poXXXXXX.X
