OTT Hydrolab DS5, User Manual

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65
External Communications
B.6.1 TTY Menu and Commands
The TTY menu is accessed by first pressing the spacebar (or sending an ASCII space
character). The multiprobe will finish any line in progress and then start a new line (by
sending <cr><lf>) followed by the menu:
<cr><lf>
HM?:
<sp>
The multiprobe will echo the user entry if it is listed in the menu, otherwise an ASCII BEL
character is sent. An ASCII escape character will abort the menu after displaying a cancel
message.
Responding with a
?
will produce a verbose version of the menu:
<cr><lf>
Main Menu
<cr><lf>
(H)eader
<cr><lf>
(M)easure
<cr><lf>
(Q)uit TTY Mode
<cr><lf>
Please enter your choice:
<sp>
A. (H)eader
Responding with an
H
will show a header identifying the data fields with name and units.
In addition, the instrument ID is displayed:
HM?:
<sp>
H
<cr><lf>
<cr><lf>
Instrument Id
<cr><lf>
<cr><lf><sp><sp>
Time
<sp><sp><sp>
Temp
<sp><sp>
Ibatt
<cr><lf>
HHMMSS
<sp><sp><sp><sp><sp>
°C
<sp><sp>
Volts
<cr><lf>
The first line is free-field text up to 20 characters in length. The next line is skipped and the
data names are printed. The names are right-justified (with leading spaces inserted) to
produce a constant width field. Most fields are 6 characters wide, however fields can also
be 5, 7, or 8 characters wide. The name fields are always separated with a space. Any
name may appear in any field depending on how the user configured the data display in
ANSI mode.
The next line shows the corresponding units for the data fields. The units are right-justified
text (with leading spaces inserted) to produce a constant-width field equal to the name
field. The name fields are always separated with a space.
B. (M)easure
Responding with an
M
will force the multiprobe to send one line of data without waiting for
the next data display interval. This is useful for synchronizing data acquisition software
with the multiprobe data output. The data values are right-justified to fill a constant-width
field of 5, 6, 7, or 8 characters.
HM?:
<sp>
M
<cr><lf>
231302
<sp><sp>
24.59
<sp><sp><sp>
12.0
<cr><lf>
Data values may also be appended with a special character (*, ~, @, #, or ?). Data values
without an appended character will always have a space separator, however, the
appended character may be the only separator between values; a space separator is not
guaranteed.