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Rockwell Automation 2706-ND1 DL40 OFFLINE PROGRAMMING SFTWR.USER MANUAL User Manual

Page 57

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Chapter 5
The Develop Menu

5 – 12

More about variables

You can send variables to the DL40 from a PLC or via the Parallel Input
Port. Variables can be sent to message only in the Message/Variable/Slave or
Message/Variable Run Modes. You can insert variables by using the

[CTRL]

key in combination with a letter. Commands to add or modify variables
include:

Command

Function

[CTRL][V]

Insert a BCD or binary variable

[CTRL][F]

Change the formatting parameters of a variable

[CTRL]W]

Insert ASCII or BCD variable data

[CTRL][X]

Insert request for ASCII input data

[CTRL][T]

Insert the system time into a message

[CTRL][Y]

Insert the system date into a message

The number of variables you can insert in any one message depends upon
your hardware and the Run Mode you have chosen.

Insert Formatted Variable With

[CTRL][V]

Use

[CTRL][V]

to insert a BCD or binary variable into a message. Specify

the variable type.

When you press

[CTRL][V]

, the software will ask you to enter 3 parameters:

Parameter

Acceptable values

Variable Size

1 to 7 (including decimal point)

Decimal Point Position
(number of placed after the
decimal point)

0 to 6 (the maximum value is one less than the
variable size selected above)

Suppress Zeroes
(appearing in front of the
first significant digit)

Yes or No

The variable symbol _____

S____ will appear in your message at the

variable’s location.

The difference between a formatted variable entered with

[CTRL][V]

and an

unformatted variable entered with

[CTRL][W]

lies in the flexibility provided

by the ability to modify the parameters shown above.

Note that neither AutoRun Messages or Background Messages support
inserted variable data.

Change Formatted Variable With

[CTRL][F]

Use

[CTRL][F]

to change the formatting parameters of a variable. To do so,

place the cursor under the symbol for the variable you want to change, then