X
X
L
L
D
D
C
C
M
M
A
A
N
N
.
.
d
d
o
o
c
c
3
3
-
-
4
4
2
2
R
R
E
E
V
V
E
E
The following entry uses a semicolon to omit the date field, thus setting the UTC (default) time, and
leaving the date unchanged.
Sample entry:
F03 ; 3:06:48<CR>
Response:
OK<CR><LF>
3-204 reserved
3-205 SERIAL FUNCTION F05 - TIME QUALITY ENABLE/SETUP
Use Function F05 to enable or disable the time quality indicators, or to set the four worst-case-error
thresholds. Refer to "SERIAL FUNCTION F08 - CONTINUOUS TIME ONCE PER SECOND" for a
description of the time quality indication in the Serial time output string. As shipped, the time quality
characters are enabled and the thresholds are set to 1000ns, 10000ns, 100000ns and 1000000ns.
The XL-DC will retain the values in use at power-down and use them for subsequent power-ups. The
acceptable threshold value range is 200 ns to 40000000000 ns.
To determine if the time quality characters are enabled and what the thresholds are, send F05<CR> to
the Serial Port. The port will respond with the ASCII character string:
F05<SEP><STATE><SEP><FLAG><SEP><FLAG><SEP><FLAG><SEP><FLAG><LT>
where:
F
=
ASCII character F
05
= function
number
<SEP>
=
one or more separator characters; either space, comma or tab
<STATE>
= ON
or
OFF
<FLAG>
=
one error threshold in nanoseconds, 1 to 11 digits with or without leading
zeros
<LT>
=
line terminator, either a carriage return and line feed for output strings
or a carriage return only for input strings
Sample request:
F05<CR>
Response:
F05 ON 00000001000 00000010000 00000100000 00001000000
To enable, disable or set the thresholds of the time quality indicators, send a character string with the
following format:
Sample entry:
F05 ON 1000 10000 100000 2000000
Response: OK<CR><LF>
Note that although leading zeros are not required for data entry, they will be included in any data
response.
Summary of Contents for 151-600
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