The User Constants editor view allows the user to define a global set of constant variables that can then be referenced in Control Bindings.
Typically a project will define a set of standards and rules that define how particular parameter types and their values will conform to a new control platform during a software migration. Examples would include defaulting FieldBus type extended ranges vs. standard Series C type I/O. Defaulting tuning parameters based on the type of process controller such as flow, pressure, temperature, level, etc.
The constant alias that you define in this editor will become automatically formed using the format <C_UserName>.
Duplicate constant names are not allowed.
Multiple constant files are supported.
When defining Control Binding relationships in a Control Binding view, a constant file can be referenced to allow its contained constant definitions to be used in a Control binding.
The Constant file that is saved is a standard Xml formatted file type that can be shared with other users.
Access
Access this tool through the Ribbon "Tools" tab group.