CygNet Measurement Overview
The CygNet Measurement system manages measurement data flow for those involved in the production, transmission, or distribution of natural gas and liquids. The primary objective of the system is to retrieve, store, validate, estimate, edit, and approve the best measurement data values, so that they can be reported to external systems for production accounting purposes.
The application is supported by the CygNet Flow Measurement Service (FMS), and the available feature set is determined by the operational mode for which your system is licensed, and the supported data types (gas and/or liquid) in your system.
Elements in the system, such as gas or liquid measurement devices and functional or virtual group associations, are defined as "Nodes" within the measurement system. FMS commands are customized to perform specified data functions, and FMS controls are customized to view and analyze data records in the manner that best supports your data processing goals.
The primary user interface for CygNet Measurement is FMS Explorer, the CygNet client application provided so that you can directly perform the administrative and data analysis tasks associated with managing and publishing accurate and useful flow measurement data. This includes creating Nodes, customizing commands and controls, and analyzing and managing data. Various aspects of the CygNet Measurement system can also be accessed via CygNet Explorer and the Master Scheduling Service (MSS), via CygNet Studio using FMS ActiveX controls placed on user-customized screens, or via scripting.
See Using CygNet Measurement for more information about usage and functionality options in the application, and for links to more specific applicable topics.
Measurement Data Flow
Data retrieved by the system comes from various sources, including electronic flow meter (EFM) devices in the field and file imports. The types of data in the measurement data set are periodic history records, liquid batch and product records, ticket records, event records, alarm records, measurement configuration data, gas analysis records, and periodic live gas quality data. The data is validated and possibly estimated to get the most accurate representation possible of the product flowing through a measurement device. Data is normalized as it passes through the system to simplify data analysis and comparison.
The following diagram generically illustrates the flow of measurement data, from source to output, through the CygNet Measurement application.
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CygNet Measurement Data Flow |
See CygNet Measurement Concepts for further discussion of the concepts presented in this diagram.
Operational Mode
You can run a CygNet Measurement application in either FULL or REPOSITORY mode, which determines the corresponding product feature set your system will be able to access. The mode keyword value is set in the configuration file, according to the type of product license purchased. (Additional Flow-Cal export functionality is optionally available.) See CygNet Measurement Licensing Requirements for more information.
Mode Options
FULL mode - Systems licensed for FULL mode can access all features generally available in the system. Flow-Cal raw data export functionality is optionally available, via Flow-Cal Data CFX or Flow-Cal Ticket Data TFX file export commands.
REPOSITORY mode - Systems licensed for REPOSITORY mode can access most features generally available in the system, with certain limitations explained below. Flow-Cal functionality is optionally available, via Flow-Cal Send Gas Quality to device, Flow-Cal Request Missing Data, Flow-Cal Data CFX file export, Flow-Cal Ticket Data TFX file export, or Flow-Cal transaction queue export commands.
REPOSITORY Mode Functionality
The following functionality limitations apply for systems operating in REPOSITORY mode.
Note: Unavailable features do not appear, and some options appear as unavailable (dimmed), if your system operates in REPOSITORY mode.
Editing:
- Data editing is not available in REPOSITORY mode (whereas editing functions are available in FULL mode via the Alarm, Configuration, and History Grid controls).
- Recalculation resulting from data changes provided via CygNet Dispatch is not available in REPOSITORY mode (although value deltas can be precalculated and viewed).
FMS Administrative functions:
- Estimation functionality is not available.
- Administrative Options
- Normalization Views - Normalization Views functionality is not available.
- System Options - The Calculation settings section of the dialog box is available. The Data change and Close period sections are not available.
FMS Command functions:
- The Estimate Station Data command is not available.
- The Export: PPAs CSV command is not available.
- The Export: Normalization View Data CSV command is not available.
- The Update Normalization Views command is not available.
FMS Control functions:
- The Close Period control is not available.
- The PPA control is not available.
See FMS Replication and Data Synchronization for a table listing FMS command functionality by operational mode.
Supported Data Types for Liquids
CygNet Measurement continues to add new functionality, and currently supports gas measurement data and, to varying extents, liquid measurement data depending on your installed software version.
Liquid Data Support
The following table describes functionality supported for each liquid data type, by CygNet Measurement software versions, and also indicates support that will become available in future versions of the software.
| Supported Liquid Data Type | Liquid - Periodic | Liquid - Ticket | Liquid - Batch | Liquid - Product |
|---|---|---|---|---|
| FMS Control Type | ||||
|
Dashboard |
|
|
|
N/A |
|
Exceptions |
|
N/A |
N/A |
N/A |
|
History Grid |
|
N/A |
N/A |
N/A |
|
History Graph |
|
N/A |
N/A |
N/A |
|
Configuration |
|
N/A |
N/A |
N/A |
|
Alarm |
|
N/A |
N/A |
N/A |
|
Raw Data |
|
|
|
Future version |
|
Reports |
Raw history data |
|
|
Future version |
|
Close Period |
|
N/A |
N/A |
N/A |
|
Prior Period Adjustment |
|
N/A |
N/A |
N/A |
|
Balance |
|
N/A |
N/A |
N/A |
| Export Type | ||||
|
Device Data CSV |
Raw configuration and history data
Normalized configuration data |
N/A |
N/A |
N/A |
|
Flow-Cal CFX (if installed) |
|
N/A |
|
|
|
Flow-Cal TFX (if installed) |
N/A |
|
N/A |
|
|
Flow-Cal Transaction Queue (if installed) |
This export type supports gas data only |
|||
|
Normalization View Support |
|
N/A |
N/A |
N/A |
v8.1.3 or later
v8.5.0 or laterMore:
