June 16, 2016 | Reliance SCADA
In 2015, Delta Gas Mobin Group implemented a system for the monitoring and control of the oil metering system at the Lavan Refinery in Iran.
The metering system comprises three metering skids, each of which has two separate meter runs. So, in total, there are six meter runs with turbine flow meters, including each meter run's inlet and outlet.
Meter run = a piece of pipe that is equipped with all necessary instruments
for custody transfer flow metering
Each meter run is equipped with the following elements:
To verify the accuracy of flow measurement (automatically/manually), a bidirectional pipe prover is used.
The elements of each meter run are wired to the flow computing, monitoring, and supervisory cabinet (control cabinet), which is installed in the control room. A server PC and two printers are located in the operator's room. The PC is equipped with Reliance's runtime software and is connected to the control cabinet through a redundant Ethernet link.
The software has different access levels, which protect the system against unwanted access. Required field and calculated signals are transferred to the distributed control system.
The Reliance SCADA system communicates with the PLC and the flow computers via a redundant Modbus Ethernet link. One of the advantages of Reliance in this project is that it has built-in drivers for both the PLC and the flow computers.
The Reliance SCADA system provides the following functionality:
Try the Reliance SCADA/HMI system on several example projects or download the installer of the trial version for free.
Visualization and control of the Lavan Refinery's oil metering system in Iran
Delta Gas Mobin Group
1 x Siemens SIMATIC S7-400H
7 x Flow-X flow computers
2 x Reliance 4 Control Server with 3,000 data points
Siemens & Modbus communication drivers