TrueTime 151-600, Руководство пользователя

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X X L L D D C C M M A A N N . . d d o o c c 3 3 - - 4 4 9 9 R R E E V V E E
exclusive use function. As shipped, the exclusive use function is disabled. The exclusive use function
on power-up will be off. To enable or disable this function, send a string of the form:
F15<SEP><STATE><CR>
where:
F = ASCII character F
15 = function number
<SEP> = one or more separator characters: either space, comma or tab
<STATE> = OFF if no port has exclusive use, OTHER if some other port
has exclusive use, SELF if the Serial Port has exclusive use
or ON if enabling the Serial Port
<CR> = carriage return character
The state will change or, if another port has exclusive use, the port will respond with the string:
ERROR 04 EXCLUSIVE USE<CR><LF>
Sample request: F15<CR> (This asks for the state)
Response: F15 OFF
Sample entry: F15 ON<CR> (This enables exclusive use)
Response: OK<CR><LF>
Sample request: F15<CR> (This asks for the state)
Response: F15 SELF
3-216 reserved
3-217 SERIAL FUNCTION F17 - SLOW CODE SETUP (OPTION)
Use Serial Function F17 to request or set the pulse widths of the optional slow code output. This output
provides one pulse per minute, primarily for placing timing marks on drum recorders. The once per
minute, once per hour and once per day pulses can each be set to a different length, or the same
length with this function. The lengths can range from 0 to 59 seconds, whole numbers only. A length
of 0 means that the pulse is absent.
Each pulse edge is aligned to within a few nanoseconds of the XL-DC’s 1 PPS pulse, with the rising
edge at the start of a minute.
To determine the current pulse widths, F17<CR> to the Serial Port. The port will respond with the
ASCII character string:
F17<SEP><MIN><SEP><HR><SEP><DAY><LT>
where:
F = ASCII character F
17 = function number
<SEP> = one or more separator characters: either space, comma or tab
<MIN> = length in seconds of the once per minute pulse
<HR> = length in seconds of the once per hour pulse