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D.20 RIO Distributed I/O Controller
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Multilin D20MX Substation Controller
Simple to Advanced Substation Automation Control

D20 The Multilin™ D20MX Substation Controller is designed to execute communications and energy management applications for the monitoring and control of electrical substations. It is capable of amalgamating data from multiple slave devices and D20 I/O modules connected via communication channels into a single database using various protocols.

The D20MX represents the next innovation in GE’s cyber secure RTU technology for NERC-CIP environments. The D20MX is built upon the field-proven Multilin D20 technologies and continues the tradition of reliable automation and control through high quality and long term product availability.


  • Reduces legacy D20 RTU upgrade expenditures by over 50% through backwards compatibility with existing D20 installed accessories, such as chassis, modems and D20 I/O peripheral modules
  • Minimizes operation and maintenance costs of existing D20-based SCADA infrastructure by leveraging existing designs, processes and infrastructure
  • Enables simpler and more efficient compliance with NERC-CIP requirements through the application of native cyber security features built into the D20MX Substation Controller


Advanced Controller

The Multilin D20MX Substation Controller collects, filters, and sorts data from a wide range of intelligent devices (RTUs, relays, meters) in the substation. The D20MX preserves original data time stamps for accurate sequence of event (SOE) logs, allowing data from large diverse geographic regions and time zones to be analyzed in extreme detail. Data can be presented simultaneously to multiple SCADA hosts. The D20MX comes with a built-in suite of protocols and security applications to facilitate integration with various substation devices and SCADA hosts.

D20MX is the sixth generation of D20 CPUs designed to provide a smooth migration path for D20 users to extend the life of aging D20 systems. It introduces a new and modern network security feature suite that enables effective compliance with NERC-CIP requirements, using open and trusted standards and protocols that allow integration with modern cyber security systems and tools.



D20MX Upgrade Process

The Multilin D20MX provides a cost-effective alternative to upgrades of legacy D20 RTUs. This means that the investments made in GE’s automation systems keep paying dividends beyond their originally projected end of life. Simply replace the failed or end of life Multilin D20 processor module with a Multilin D20MX and migrate the device configuration to extend the life of the existing D20 Controller. Add cyber security features for integration into NERC-CIP environments. As technology changes with market demands, GE continues to invest in a partnership with their customers through advanced modular design principals.


Integration into NERC-CIP Environments

The Multilin D20MX supports a comprehensive set of security functions to allow a seamless integration with existing IT department policies. Built-in cyber security features, such as Remote Authentication Dial-In User Service (RADIUS), Role Based Access Control (RBAC), and user activity logging, provide a complete security toolkit required to enable simpler and more efficient compliance with NERC-CIP requirements, using open and trusted standards and protocols, that allow integration with modern cyber security systems and tools.

Centralized Authentication and Authorization

Hardware Overview

Backwards Compatibility with Earlier Vintages of Multilin D20 RTUs

The Multilin D20MX is an embedded single board computer powered by a 667 Mhz power PC CPU pin-for-pin compatible unit with existing D20 VME and non-VME D20 Processors and accessories, such as chassis, D20 remote I/O peripherals, modems.

Fully Equipped Out-of-the-Box

Previous generations of D20 RTUs required add-on system components and software to support Ethernet communications and optional memory expansion. The new D20MX is equipped by default with integrated memory, 10/100/1000BASE-TX or 100BASE-FX IEEE 802.3 compliant communications and a core load firmware with a comprehensive set of key substation automation applications.



 
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