UniInt End User


Interface Startup Parameters



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UniInt Interface User Manual
PI BASemAPI

Interface Startup Parameters


Startup parameters determine the behavior of an interface. This chapter documents the available startup parameters for a UniInt based interface. Consult the interface specific documentation to discover which parameters are and are not supported by a particular interface.

Startup Options


Interface startup parameters can be specified using any one of the following three methods:

  • Manually enter a series of parameters on the command-line.

  • Create a startup file that contains a series of parameters. Issue a command to run the startup file.

  • Create a startup file that contains a series of parameters. Start a service that runs the command file.

Conventions and Limitations


A Windows command file name must have a .bat extension. Although UNIX does not enforce file-naming convetions, UNIX command files typically have a .sh extension.
There is no limit to the number of parameters in a startup command file. The maximum line length in Windows is 1024 characters (1 kilobyte). The maximum length for a parameter in Windows is also 1 kilobyte. UNIX has no maximum line length or parameter length.
Continuation characters allow specifying parameters over multiple lines. The continuation character for Windows is ^ (up arrow caret). The continuation character for UNIX is \ (backslash). There must be a space between the last parameter on a line and the continuation character.
Command-line parameters can begin with a / (forward slash) or with a - (dash). For example, /ps=M is equivalent to -ps=M. Command-line parameters that contain spaces must be enclosed in double quotes (“). For example, /path=C:\pipc\interfaces is a valid parameter but /path=C:\program files\pipc\interfaces will not be parsed correctly because of the space in the path. In order for the path parameter to be parsed correctly, either the value or both the parameter and value must be surrounded by double quotes. For example, both of the following are valid parameters: "/path=C:\program files\pipc\interfaces" and /path="C:\program files\pipc\interfaces" .
Each entry in the following tables presents the parameter and its description. The Parameter column includes the UniInt default value for the parameter if there is one and whether or not the parameter is required or optional.
Note: Parameter requirements vary from interface to interface. Refer to the interface‑specific documentation for interface-specific parameter requirements and for the exceptions for using standard UniInt parameters.

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