Program Management Facilities; Support For Variable Types; I/O Connection (Addressing Of Physical I/O) - Allen-Bradley AADvance Manual

Chapter 3 Application (Resource) Development
Program Management
Facilities

Support for Variable Types

I/O Connection (Addressing
of Physical I/O)
64
The development environment is designed for collaborative working. A group
of engineers can work together, with shared ownership of a project. Each
contributor can simply look at the part of the application on which they wish
to work.
Program management features let you identify each functional module
(program organization unit) and its operations, and the interactions between
modules to form the complete application. This modular construction can
help future use of code units. Engineers can debug their own modules
independently from each other.
Programs can be tried and tested on the computer before downloading to the
controller hardware.
For each controller, you can declare variables using all types identified in IEC
61131-3, including Boolean, 16-bit integer (signed and unsigned) and 32-bit
real. Controller-specific types include structures to hold multiple variables for
each I/O channel type. Variables are easily imported from external databases if
required.
Variables are found in a data dictionary. The development environment
supplies a hierarchical tree of variables and a grid-like representation of their
definitions.
To show the links between the hardware-independent logical variables of the
AADvance application program and the physical I/O channel available on the
controller, the AADvance Workbench has a powerful I/O connection editor.
I/O channel links are easily identified between the logical programming and
Rockwell Automation Publication ICSTT-RM448J-EN-P - April 2018