Micro-Aide CWR-24E, User Manual, Page: 24 / 108

VDL S7‑300 U
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icro
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To execute a command that has been previously selected (i.e., highlighted) simply press the
Enter
key.
Alternatively, the command may be executed by pressing the single‑letter code listed to the left of the
command. Upper‑ and lower‑case letters may be used. Every command listed in a menu has a distinct
single‑letter code that permits immediate execution of that command.
W
orKing With
f
ieLDS
The VDL utilizes two types of fields. Selection Fields allow the user to select a parameter from a list of pre ‑
defined values (e.g., Terminal Port Baud Rate). Edit Fields can be set to any alphanumeric value desired
by the user (e.g., Unit Name).
To change the value of a Selection Field simply press the
Spacebar
on the PC keyboard. The next value
from a predefined list of values will be displayed each time the
Spacebar
is pressed. The first value in the
list will automatically follow the last value.
Input Names and Limit Values are examples of parameters that are defined by Edit Fields. After the
desired Edit Field is highlighted the user may type any combination of alphanumeric characters ap‑
propriate to the field. The initial value of the field is completely removed after typing the first character.
Consequently, it is not necessary to delete each character that comprises the initial value. Errors in typing
can be corrected by using the
Backspace
key. At any time while editing a field the user may press the
Esc
key and thereby restore the field to its previous value.
Upper‑ and lower‑case letters may be used. Limit Values are assigned negative values by preceding the
numeric entry with a minus sign. Numeric values that exceed the range of the field are automatically set
to the maximum or minimum value (as appropriate) permitted by the range.
To accept the new value assigned to an Edit Field the user can either press the
Enter
key or move the
highlight to a new field. The initial value of an Edit Field cannot be restored after the new value has been
accepted. When all of the fields contain values suitable to the user the command may be completed.
Once a field has been accepted by pressing the
Enter
key or moving the highlight it may, depending
upon the command, be programmed into the logger as an updated operating parameter. Accordingly,
the acceptance may occur before completion of the command.
C
oMpLeting
C
oMManDS
Generally, commands are completed by pressing the
Esc
key. However, pressing the
Esc
key will not
complete the command if the user is in the process of editing a field. Pressing the
Esc
key prior to ac‑
cepting the new value will instead restore the highlighted field to its previous value. To complete a com ‑
mand that requires pressing the
Esc
key, first accept the contents of the last Edit Field by pressing the
Enter
key or moving the highlight to another field.
Some commands are completed by responding to a choice listed in a Selection Field (e.g., No or Yes). In
these cases the command is completed by highlighting the desired choice and then pressing the
Enter
key. Pressing the
Esc
key is the equivalent of selecting the default choice (generally the No option). As a
rule of thumb, executing the No option will abandon any field changes made prior to the completion.
Other commands are completed by pressing the key described in a prompt message displayed with
the command. Prompts are frequently listed with commands as an aid to the user. After the command is
completed the user will be returned to the menu that was previously displayed.
D
ata
f
LoW
C
ontroL
A few of the setup and operational commands can generate considerable amounts of displayed data.
If the user wishes to observe this data on the screen of a PC it may be helpful to temporarily pause the
data stream being sent by the logger. The Pause and Resume commands may be used to provide the
required data flow control.