Rockwell Automation FactoryTalk View Site Edition Users Guide - Manual (Page 503)

17 • C REATING GRAPHIC OBJECTS
17–61
•
•
•
• •
17
•
Pla
ceho
lde
r
Securing tag writes, commands, and downloads
You can use the signature button to secure the following operations:
 Setting a tag value
 Running a FactoryTalk View command
 Downloading all input object values to a network device
At run time, if a user name or password is incorrect, or if other information, such as an
operator’s comment, is required but not provided, these operations can be prevented and
an error message shows.
In addition, the signature button can be set up to require authorization by another person,
such as a supervisor, before the operation can be carried out.
For added security, in the Connections tab of the signature button’s Properties dialog box,
use the security function CurrentUserHasCode in an expression assigned to the button’s
Enabled property.
This checks whether the current user has the security code assigned to the graphic display.
For more information about securing graphic displays, see “Assigning security codes to
graphic displays” on page 5-18.
Creating signature buttons
The electronic signature button is an ActiveX object. The tool to create an electronic
signature button is in the ActiveX toolbox.
To create an electronic signature button
1. From the View menu, select ActiveX Toolbox.
2. In the ActiveX Toolbox, click the FactoryTalk View SE Signature button.
3. Drag the tool to create a box on the display that is the size the button is to be.
4. Right-click the signature button, and then select Properties to open the FactoryTalk
View SE Signature Button Properties dialog box.
Securing objects in graphic displays
The signature button does not change the way graphic objects in a display work.
For example, numeric input objects in a display will download their values to a network
device when the operator presses Page Down, even if there is a signature button on the
display.