Pi interface for Bailey Infi90
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- Navigate this page:
- Bufserv and PIBufss
- Output Points SourceTag
- Bailey Point Types
| /stopstat=Shutdown command-line parameter is specified. SHUTDOWN events can be disabled from being written to PI when PI is restarted by setting the Shutdown attribute to 0 for each point. Alternatively, the default behavior of the PI Shutdown Subsystem can be changed to write SHUTDOWN events only for PI points that have their Shutdown attribute set to 0. To change the default behavior, edit the \PI\dat\Shutdown.dat file, as discussed in PI Server manuals. Bufserv and PIBufss It is undesirable to write shutdown events when buffering is being used. Bufserv and PIBufss are utility programs that provide the capability to store and forward events to a PI Server, allowing continuous data collection when the PI Server is down for maintenance, upgrades, backups, and unexpected failures. That is, when the PI Server is shutdown, Bufserv or PIBufss will continue to collect data for the interface, making it undesirable to write SHUTDOWN events to the PI points for this interface. Disabling Shutdown is recommended when sending data to a Highly Available PI Server Collective. Refer to the Bufserv or PIBufss manuals for additional information. Output Points SourceTag The source tag is the PI tag from which the output point gets the value to send to the Bailey Net / Infi90. For example, the source tag can be a performance equation calculation tag or a lab (manual input) tag. When the source tag is not defined for an output point, the interface will get the output value from the output tag snapshot. In this case, the user is responsible for updating the value directly. Bailey Point Types Analog data from Bailey control system should be stored in the PI Server as afloat type (e.g., Float, Float, or Float) point. If the quality of the value is good, the floating point value from the CIU exception report is stored in the PI point. If the passed quality is bad, the digital code for BAD INPUT is stored for that tag. If Bailey analog data is configured to be stored as a digital point in the PI Server, the CIU exception value is interpreted as the offset from the digital starting code of the point. Any value out of the range of the point's digital state set is stored as BAD INPUT. The different types of Bailey points are further described below Download 1.41 Mb. Share with your friends:
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