Pi interface for Bailey Infi90

PI Interface for Bailey Infi90
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Chapter 4.
Interface Installation
OSIsoft recommends that interfaces be installed on interface nodes instead of directly on the PI Server node. An interface node is any node other than the PI Server node where the PI Application Programming Interface (PI API) is installed (seethe PI API manual. With this approach, the PI Server need not compete with interfaces for the machine’s resources. The primary function of the PI Server is to archive data and to service clients that request data. After the interface has been installed and tested, Buffering should be enabled on the interface node. Buffering refers to either PI API Buffer Server (Bufserv) or the PI Buffer Subsystem
(PIBufss). For more information about Buffering seethe Buffering chapter of this manual. Inmost cases, interfaces on interface nodes should be installed as automatic services. Services keep running after the user logs off. Automatic services automatically restart when the computer is restarted, which is useful in the event of a power failure. The guidelines are different if an interface is installed on the PI Server node. In this case, the typical procedure is to install the PI Server as an automatic service and install the interface as an automatic service that depends on the PI Update Manager and PI Network Manager services. This typical scenario assumes that Buffering is not enabled on the PI Server node.
Bufserv or PIBufss can be enabled on the PI Server node so that interfaces on the PI Server node do not need to be started and stopped in conjunction with the PI Server, but it is not standard practice to enable buffering on the PI Server node. The PI Buffer Subsystem can also be installed on the PI Server. Seethe UniInt Interface User Manual for special procedural information.

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