X
X
L
L
D
D
C
C
M
M
A
A
N
N
.
.
d
d
o
o
c
c
3
3
-
-
2
2
0
0
R
R
E
E
V
V
E
E
If a command character T is sent to the Serial Port prior to the acquisition of time, the Serial Port will
output time elapsed from power-up.
3-117 KEYPAD FUNCTION 17 - SLOW CODE SETUP (OPTION)
Use Function 17 to control the Slow Code output. This output provides one pulse per minute, primarily
for placing timing marks on drum recorders. Each pulse edge is aligned to within a few nanoseconds of
the 1 PPS output, with the rising edge at the start of a minute. The as-shipped default values are:
Once per minute pulse 2 seconds long.
Once per hour pulse 4 seconds long.
Once per day pulse 6 seconds long.
The default values on power-up will be those in use prior to power-down.
Press "FUNC ENTR", then "1" "7". The display will show:
Slow Code minute
pulse 02 sec
or a different number of seconds. This display means that the once per minute slow code pulse will be
2 seconds long. Press the right- or left-arrow keys to position the cursor beneath the digit that you want
to edit. Press the up- or down-arrow keys to scroll through the possible digit choices. Alternatively,
directly enter the numbers using the keypad. The cursor will advance to the next digit automatically.
When the display shows the value that you desire for the minute pulse width, press "FUNC/ENTR" and
the display will show:
Slow Code hour
pulse 04 sec
or a different number of seconds. This display means that the once per hour slow code pulse will be
4 seconds long. Using the same combination of arrow keys and direct digit entry, when the display
shows the desired value for the hour pulse width, press "FUNC/ENTR" and the display will show:
Slow Code day
pulse 06 sec
or a different number of seconds. This display means that the once per day slow code pulse will be
6 seconds long. Using the same combination of arrow keys and direct digit entry, when the display
shows the desired value for the hour pulse width, press "FUNC/ENTR". The display will return to the
status display, completing the entry of the slow code pulse widths.
If the function is aborted by pressing the TIME, STATUS, or POSITION keys before the third press of
the "FUNC/ENTR" key, none of the changes will take effect.
Any of the three pulses may be set for widths between 0 and 59 seconds. A value of 0 means that the
pulse will be absent from the Slow Code output.
Summary of Contents for 151-600
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