Rockwell-automation 2711-ND3 PanelBuilder v2.60 Software User Manual Uživatelský manuál stáhnout pdf (Strana 318)

19–6 Working with Tags

Publication 2711-6.0

Field NotesValid CharactersDescription

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.

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