GAS FLOW

GAS FLOW is a full featured, API compliant natural gas flow computer app for PLC SHIFT. Accurate and reliable measurement is critical for custody transfer and precise process control.  Reliable measurement requires auditability to ensure accuracy.  

Key Features

AGA3 (1992 and 2013)

EFM with Orifice meter and multivariable transmitter

AGA7

EFM with Turbine meter or other volumetric meter

AGA8 2017 Part 1 and 2 

Compressibilty and density calculations including GERG 2008. GERG 2008 is an extended equation of state calculation covering the gas phase, liquid phase, supercritical region, and vapor–liquid equilibrium states.

CFX File Generation and Export Automatic daily FLOWCAL CFX File generation and export. Store locally and export to Azure Blob Storage, or a file transfer method of your choice.

EFM History and Audit trail Export

Automatically push API EFM History and Logs to MS SQL, Azure or MQTT Sparkplug.

Multivariable Transmitter Support

Directly poll the following multivariable transmitters;

• Rosemount 3095 and 4088

• ABB 266 in 3095 mode

• Schneider Electric 4102

• Oleumtech HMVS

  
  

Compliant with API MPMS 21.1 and 21.2 and AER Directive 17

• Double precision float accuracy

• Daily, Hourly and minute history logs

• Configuration change logs

• EFM Event log

• EFM Alarm log

• Batch / QTR (Quantity Transaction Record)

• Secure access control via SSH

Flow Computer Accuracy Testing and Validation

• Algorithms and accumulations are validated against industry standard test cases

• Read more about flow computer accuracy in the Reference Manual

Well Testing

Combine with PLC Shift Liquid Flow to solve complex measurement requirements such as Well Testing. Read more about the PLC Shift Well Test App

PLC SHIFT Features

Integration with existing PLCs, RTUs and Flow Computers

Communicate directly to Compact/ControlLogix, Codesys, SCADAPack, or any Modbus capable device.

7 Day demo license

Apps will run fully featured for 7 days without a license for convenience and testing

PLC SHIFT MANAGER

Free configuration, management and operations tool

Modbus TCP Server

Read and write directly to the apps via the Modbus TCP server. Each app has a unique Modbus Unit ID to facilitate standardized HMI templates.

Web HMI

Automatically generated web HMI, served directly from the app for local and remote status and control

MS SQL, Azure and MQTT SparkplugB Export

Stream tag and historical data to MS SQL, Azure or an MQTT broker to enable real-time analytics and auditability.

Secure Connections

Modern security and encryption methods such as SSH and TLS for user access and data connectivity

App API

Read/write access to app tags via gRPC. Encrypted and authenticated role based access control with single sign-on.