Phoenix Contact AXC F 1152, Установка, запуск и эксплуатация

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System variables and status information
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8 System variables and status information
8.1 General information
This section describes the system variables that are available for the controller.
The controller has a register set that is used for diagnostics and easy control of the controller
and the Axioline F local bus.
The diagnostic data is stored in the diagnostic status register and the diagnostic parameter
register. These registers are available to the application program as system variables (sys-
tem flags, global variables).
8.2 Data structures
Some system variables of the controller are organized as data structures. The data structure
for this type of system variable contains further system variables.
In the Init Value Configuration of PLCnext Engineer, you can see which specific system vari-
ables belong to a system variable that is organized as a data structure.
To open the Init Value Configuration for a system variable organized as a data structure,
proceed as follows:
• Double-click on the “PLC” node in the “PLANT” area.
The “/ PLC” controller editor group opens.
• Select the “Data List” editor.
• Open the “System Variables” section.
• In the “Variable (PLC)” column, click on the arrow to display additional information.
The data type of the system variable is displayed in the “Type” column of the additional in-
formation.
• Select the row for the system variable organized as a data structure whose associated
system variables you would like to view.
To do this, click on the first column in the row for the system variable organized as a
data structure.
• Click on the button to open the Init Value Configuration for the system variable or-
ganized as a data structure.
Alternatively, you can open the “Data List” editor via the controller node in the “PLANT”
area.