ARP23/01 Provision of a New SCADA System

Nexus is to appoint a Contractor to design, build, install, test, commission, carry out training, migrate and handover a new SCADA system. This system will replace the existing SCADA system, which is to be decommissioned and removed by the Contractor. The contract duration for delivery of this element is anticipated to be 24 months. The contractor will also be employed to provide a 3-year remote support package, with an option to extend to years 4 and 5.

• When bringing into use a new SCADA system around the Nexus metro network, the following are considered strategic goals of the scheme:
• The new SCADA system will be modern, reliable, highly configurable, and supportable.
• The migration between the old and new SCADA system is as seamless as possible, minimising any material impact on rail operational activities.
• The new SCADA system results in high level of end user satisfaction, from operational and maintenance end users
• The new SCADA system is a supportable system, with Commercial off the Shelf (COTS) equipment, with a minimum 15 year lifespan for hardware.
• The new SCADA system software will be able to operate on the Nexus virtual environment, provided on two virtual machines per physical data centre (2 number).
• The existing SCADA system, consisting of the MIMIC panel, user screens, field end equipment and cabling will be fully recovered and disposed of in an environmentally friendly manner.