MSS - Ballast Control and Tank Gauging Systems

The operating control and data management system is driven by a Siemens S7400H Series Redundant PLC and ET200M distributed I/O controlling valves, pumps and monitoring tanks holding ballast; diesel oil; potable water; drill water; salt water; contaminated drain, bilge and other fluids. Ballast control functions are presented graphically to the operator providing an easy interface between operator and equipment. Tank levels are shown both graphically and numerically, whilst audio-visual alarms are displayed in an alarm banner shown on selected screens and a separate alarm page.

This high availability system is powered by an uninterruptible supply (UPS) fed by both mains and emergency power. It also has sufficient battery capacity to run the system for 30 minutes without any power input.

The system can be supplied in its entirety or installed to utilise client`s existing valves, actuators and tank sensing installations.

General

• Protected by UPS with 30 minutes autonomy
• High availability using redundant PLC
• Configuration utilises two dedicated, linked process CPUs and high speed synchronisation modules
• Synch modules communicate through fibre optic, fault proof cabling
• Data from tank gauging fed in via Modus network links

Proven Hardware and Software

• Stainless steel 6 inch HMI rugged displays
• Driven by Siemens S7400H Series redundancy PLC
• I/O distributed or local via Siemens ET200M
• Alarm and event recording
• Operator control using 19 inch touch screen industrial PCs
• Dedicated maintenance 15 inch HMI touch screen

System Integration

• Can integrate with existing valves, actuators and pumps
• Can be incorporated into existing control room facilities
• Can be made compatible with other suppliers equipment

Control and Reporting Features

• Graphical and numerical tank level monitoring
• Graphical valve and pump control
• Audio / visual alarm systems
• Calibration and set-up parameters set using the maintenance screen