Control Libraries - Honeywell Experion PKS Specifications And Technical Data

EP03-300-200
Release 200

Control Libraries

In addition to the standard Control Builder libraries, Experion PKS also supports special function block
libraries that are licensed separately, such as the Profibus, Fieldbus, American Gas Association (AGA)
Flow Rate Calculation, and Allen Bradley Drive Interface Libraries.
Libraries are licensed per control system. All function block libraries appear in the library tab of the
Control Builder. This enables the user to see, use and learn all available function blocks on the project
side of the Configurator. Only the standard and licensed function blocks can be loaded to a controller.
The AGA Flow Rate Calculation Library provides the ability to normalize gas flow based on ambient
temperature, pressure and composition of a gas. Calculations are based upon reference C code
(Version 1.3, July 1997) provided by AGA (copyright © 1992-1995 Starling Associates, Inc.):
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AGA3OM_92: AGA Report 3 – 1992 (part III and IV) Orifice Metering of Natural Gas
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AGA7TM_96: AGA Report 7 – 1996 Measurement of Gas by Turbine Meters
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AGA8DL_94 and AGA8GS_94: AGA Report 8 – 1994 Compressibility Factors of Natural Gas and Other
Related Hydrocarbon Gases
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AGA9UM_96: AGA Report 9 – 1998 Measurement of Gas by Multi-path Ultrasonic Meters
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AGA3OM_98, AGA7TM_96 and AGA9UM_98 also include AGA Report 5 – 1996 Fuel Gas Energy
Metering calculations
Once the library license is enabled on the system, the meter run can be configured and loaded using
these special function blocks. Advantages of running the AGA flow rate calculations in the controller
include:
to the calculations. Orifice and gas composition information is presented through an extensive set of
detail displays provided with this option. Detailed information related to AGA calculation error
conditions is presented in the detail displays. The error is also written to the system event log.
Allen-Bradley Drive Interface Library provides the ability to interface directly with Allen-Bradley
variable speed drives making a PLC as an intermediate device unnecessary.
Two specific drives are supported – the 1305 AC Drive and the 1336 Plus II drive. The drives are
connected to a special Allen-Bradley ControlNet communication module (1203-CN1) to communicate
with the drive interface library. A generic interface function block is provided for other drives that can
connect to the scan port module 1203-CN1. The I/O data transfer of the generic drive has to be similar
to the 1305 and 1336-PLUS-II drive.
The function blocks provide access to all drive status and command information without the need for
additional configuration. The information is available for the operator through a detail display and as
parameters in the controller for control purposes. In addition to the standard status and command data,
additional drive parameters can be accessed through four Datalinks, which have to be configured on
the drive and in the function blocks.
Standard initialization processing is supported on the frequency output to the drive, making bumpless
transition possible on communication recovery.
Experion PKS CEE-based Controller Specifications and Models
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Native support of controller redundancy
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All parameters are available at the controller level,
allowing, for example, on-line analyzers to provide
gas composition data directly to the algorithm.
Gas composition information can be entered directly into
the algorithms when an off-line analyses is used. Data is
protected from changes by the normal access control
features of Experion PKS. All information can be
historized and used in trends for analysis or reporting
purposes.
The operator has easy access to all information related
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December, 2003
Version 1.0