Rockwell Automation 2711-ND3 PanelBuilder v2.60 Software User Manual - Manual (Page 318)

19–6 Working with Tags
Publication 2711-6.0
Field Notes Valid Characters Description
Node Name
➀➁
The node with which
you want this tag
associated Maximum characters = 32
•
A – Z, a – z, 0 – 9
•
hyphen (–), underscore(_),
percent (%)
•
if you type an invalid character, the Tag Editor beeps and
does not display it
•
node name cannot be identical to a tag name or terminal
name
•
the node name must match the controller name entered
in the Communication Setup dialog (Terminal Setup)
•
node name cannot begin with 0 – 9, hyphen, or percent
•
node names are not case-sensitive
•
do not use blanks, tabs, carriage returns, non-printable
characters
Address
➀➁
The data table
address within the
processor for the tag Maximum characters = 32
For more information on valid
addresses, refer to your
processor’s user manual.
•
do not use blanks, tabs, carriage returns, non-printable
characters
Initial Value The starting value for
the current tag in
engineering units Maximum characters = 24
•
0 – 9
•
e, E, +, – and period
•
if the Data Type is bit, enter
either 0 or 1
•
do not use blanks, tabs, carriage returns, non-printable
characters
•
maximum precision is 6 places to the right of the decimal
point for non-floating point values
•
if present, a sign (+ or –) for the number must be first (+
is the default)
•
if present, a sign for the exponent must immediately
follow the e or E
•
provides a preset value for numeric entry objects only
•
no entry = default of 0
Update Frequency The rate at which you
want the terminal to
obtain data
•
1 – 9
where 1 is the fastest update
rate
does not apply to remote I/O
Alternate Methods:
Type the update frequency, 1 to 9.
Use the TAB key to move to the Update
Frequency field and press ALT+
↓
to display
the list of available formats.
Scaling
➂
Scale:
‘m’ in y = mx + b
Offset:
‘b’ in y = mx + b
The values you want
to use to convert the
current tag’s
processor integer
value (‘x’) to
engineering units (‘y’) Maximum characters = 12
•
0 – 9
•
e, E, +, – and period
•
do not use blanks, tabs, carriage returns, non-printable
characters
•
maximum precision for scale is 6 places to right of
decimal point
•
maximum precision for offset is 6 places to right of
decimal point
•
if present, a sign (+ or –) for the number must be first (+
is default)
•
if present, a sign for the exponent must immediately
follow the e or E
Data Entry Limits ➂
Minimum
Maximum The minimum and
maximum values that
can be assigned to
the tag Maximum characters = 12
•
0 – 9
•
e, E, +, – and period
•
do not use blanks, tabs, carriage returns, non-printable
characters
•
maximum precision is 6 places to the right of the decimal
point
•
if present, a sign (+ or –) for the number must be first (+
is the default)
•
if present, a sign for the exponent must immediately
follow the e or E
➀ Required fields for the Table View
➁ Required fields for the Form View
➂
These fields appear only when the data type is 4BCD, signed integer, unsigned integer, IEEE Float.