Campbell Scientific PC208 Datalogger Support Software - Manual (Page 50)

SECTION 3. GRAPHTERM
3-6
3.3 MONITORING AND GRAPHING
INPUT DATA
When "M" is keyed, GraphTerm will do one of
the following:
1. Request the name of the file containing
Input Location Labels for this station.
(Default file is the station name.) Enter "*"
to list all .DLD files.
2. Go immediately into the Monitor option
(without prompting for file) if the "D"
(Download) option was selected previous to
the Monitor option. The Location Labels of
the file downloaded will be used
automatically.
3. Go immediately into the Monitor option
(without prompting for file) if the "M"
(Monitor) option was selected previously.
The Location Labels specified previously
will be used automatically.
In the Monitor option, input locations are
displayed as last specified for the station file in
use. If the locations were not previously
defined, the first 11 Input locations and labels
will be displayed in a column on the center of
the screen.
The rate at which the displayed data are
updated depends upon the numbers of values
monitored, the baud rate, the computer speed,
and the interfaces between the computer and
the datalogger.
Exit M option by pressing Escape. Monitor will
end automatically after communication with the
datalogger is broken and a time out has elapsed.
3.3.1 LOCATIONS
The Input locations displayed can be changed
by keying 'L' and, when TERM prompts
"Locations:", the desired location numbers
separated by commas.
A total of 33 Input locations may be displayed at
one time. Continuous locations may be
specified by the first number then two periods
and the last number. For example, 1..33 would
display the first 33 Input locations, or 1..11,
22..32, 89..99 would display locations 1 through
11, 22 through 32, and 89 through 99. If more
than 11 Input locations are specified, then they
will be displayed from the left of the screen to
the right. Entering commas with no number
between them (e.g., 1..5,, 7..11) will leave a
blank space on the screen.
3.3.2 F1..F8 -- FLAG SET
The user flag status is shown below the input
location data. High flags are displayed in
reverse video. Keys F1 through F8 toggle user
flags 1 through 8 respectively. (i.e., If the flag is
high, the function key will set it Low. If the flag
is Low the function key will set it high.)
3.3.3 D -- DIGITS DISPLAYED
The default resolution of the displayed data will
default to 3 digits; by pressing the "D" key, an
additional digit will be displayed. A maximum of
6 digits can be displayed.
3.3.4 T -- TERMINAL EMULATOR
While in the monitor option, a user can get into the
terminal emulator option by pressing the "T" key.
The top portion of the screen will be windowed for
this purpose. While in this mode, the input locations
on the screen will not be updated until the Terminal
Emulator option is exited by pressing Escape.
3.3.5 PORT TOGGLE
The port status is displayed with the numbers 1
through 8. When a port is set high (5 volts), the
corresponding number will be displayed in reverse
video; the user can set port 1 high or low by pressing
"P" and then "1". When the "P" key is pressed, a "P"
will be displayed on the screen indicating that
GraphTerm is waiting for the port number.
3.3.6 INPUT VALUE LOAD
To load a fixed value into an Input location, press the
"I" key; a prompt at the bottom of the screen will read
"Change Input Location value 11:". Input location
eleven will be displayed in reverse video when the
monitor mode is entered. To enter a new value in
location eleven, simply enter the number after the
prompt and press return; the number is then entered
into Input location eleven. To load other Input
locations, enter the Input location then a colon and
the value to be put in that location, then press return.
Several Input locations can be loaded with one
command by separating each Input location and
value with a comma. Up to 100 characters can be
entered in one command. To load Input locations
12, 14 and 15 with the values 55, 1 and 100
respectively, the following key strokes would be
given: "12:55,14:1,100". Data values separated by
commas will be loaded at consecutive locations.
The last Input location to be loaded will then be
displayed in reverse video.