Lenze PLC Designer PLC Designer (R2-x) - Manual (Page 434)

L-force | PLC Designer
The Resources
432 DMS 3.2 EN 02/2011 TD29

8.11 Target Settings - Parameter Manager
The Parameter Manager is a a target specific component of the PLC Designer
programming system and must be activated in the target settings.
The Parameter Manager can be used to make variables of a PLC Designer IEC-program,
constant parameters or specific system parameters accessible to all PLC Designer
compatible systems in a network for the purpose of data exchange, typically via
fieldbus. For this purpose in the editor you can create parameter lists and load down
to and up from the runtime system.
Note!
Parameter lists also can be created resp. filled with entries via pragmas which are
included in variable declarations.
What are Parameters ?:
In this context parameters are:
• process variables of the PLC Designer IEC project
• process independent parameters
• specific system parameters, predefined by the target system
• functionblock instances or structure variables, arrays
Each parameter is identified by a certain set of attributes like e.g. 'default value',
'access rights', and especially by an unique access key ('Index', 'SubIndex', 'Name'),
which can be addressed for reading or writing data from/to the parameter list. This
data exchange can be done via communication services and it is not necessary to
know any addresses of variables or to provide any extra functions. So the use of the
Parameter Manager functionality it is an alternative to using Network Variables.
What are Parameter Lists?:
Parameter lists are used for organizing the parameters and can be saved with the
project and loaded to the local target system which is controlled by the corresponding
IEC-program. For each type of parameters there is a corresponding type of parameter
list.
Each parameter entry is represented by a line in the parameter list. Each column of the
list is representing one of the parameter attributes. In addition to a certain set of
standard attributes also manufacturer specific attributes might be used for the
description of a parameter in the Parameter Manager.