Rockwell Automation 9323-S5500D A.I. SERIES MICROLOGIX 1000 AND PLC-500 SOFTW - Manual (Page 173)

Adding Descriptive Text to Ladder Logic
8-3
Describing Addresses
When you define instructions, PLC-500 A.I. allows you to enter address descriptions.
You can also enter the descriptions later, using the Tags feature of the offline and
online editors.
If the auto describe feature is turned on (it is on by default), PLC-500 A.I. shows the
Instruction Description Editor window immediately after you define an instruction
whose address doesn’t already have a description.
Note For information on turning off the auto describe feature, see Chapter 12 - Customizing
PLC-500 A.I.
Note The description and symbol field widths may be set to allow 9 to 15 characters. This is
useful if you intend to export documentation for later import to another software
package (such as APS), which may not accommodate 15-character field widths (the
default width). See the section on Program Operational Parameters in Chapter 12 -
Customizing PLC-500 A.I. for information on changing the field widths.
The Instruction Description Editor window (shown above) displays a list of addresses,
and the description and symbol (if applicable) for the highlighted address.
Use the cursor (arrow) keys to highlight the address you wish to describe. Use the
[Tab] , [Shift-Tab] , and [Enter] keys to move to the description and symbol fields and
edit the information. The table below explains the function of various keys.
To Use these keys
move from one field to the next [Tab]
move to previous field [Shift-Tab]
delete the current line of a description (and move the rest up) [Ctrl-Y]