Distributed Discrete I/O

The rugged NovaTech Distributed Discrete I/O Module (DDIO) can help reduce wiring and costs in substation monitoring and control applications. Its hardened design, small form factor, and distributed communications capability allow it to be installed virtually anywhere in the substation. DDIO modules can be wired back to any RTU or PLC supporting the DNP3 protocol using an RS- 232, RS-485, fiber optic or Ethernet connection. Combinations of up to 24 inputs or outputs are provided to meet specific requirements. The DDIO also offers high resolution (1ms) time-stamping, an IRIG-B port, and independent input circuits in an enclosed package. Customized input and output labels can be inserted into the front panel. The DDIO, along with the Distributed Combination I/O module (DCIO), provides security features to meet NERC CIP requirements, including strong passwords, user groups, encrypted protocols and firewall.

Operating Temperature Range -20 to +70oC; Tested to IEEE C37.90.1, 2 and 3 surge

Communication Protocol Configuration DNP3 to module for status and control. Unsolicited Report-by-Exception (URBE) supported; Set Time on module supported; Serial baud rate set up to 57.6kb, Ethernet 10/100M Baud rate. Simple Mode: Set address and comm parameters with DIP switches. Advanced Mode: Set advanced comm parameters through webpages served from module

Inputs/Outputs

  • 16-in / 8-out, 8-in / 16-out or 24-in @ 12, 24, 48 or 125V dc (+/- 20%).
  • Input circuit draw: 2mA
  • Output relays: Heavy duty protective relay-grade 10A for direct connection to circuit breaker trip coils Removable Phoenix Type Screw Terminals, 12 to 24AWG

Mechanical 10 Million no load operations
Make 30A @ 180V dc per IEEE C37.90
Breaking Capacity (10,000 operations) .3A at 125V dc per IEC 60255-0-20:1974
Cyclic Capacity (2.5 cycles/second) .3A at 125V dc per IEC 602
Physical Ports

Built-In RS-232 (DB9F) Built-In Ethernet Port (RJ45 Style 10/100BaseT) RS-485 Type B (Screw Terminals Two-Wire or Four-Wire) or Fiber Optic Type C (ST Connector) RS-232 Type A (DB9F) or RS-485 Type G (Screw Terminals Two-Wire) or Fiber Optic Type J (V-Pin Connector) IRIG-B or 1PPS (Screw Terminal)
Data Communications to DNP3 Master X X X
Time Synchronization X (using NTP) X X
Online Diagnostics X X
Configuration X

Dimensions and Mounting

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Circuit Diagram

    June 21, 2017 – June 22, 2017 Fayetteville Public Works Commission

    2017 North Carolina Technical Symposium

    NovaTech in cooperation with Criterion, Inc. invites you to our 2017 North Carolina Users’ Group Meeting and Technical Symposium to be held on Thursday, June 22, 2017, hosted by Fayetteville Public...

    June 27, 2017 Doubletree Hotel - Overland Park

    2017 Kansas Technical Symposium

    Please register to attend the upcoming Kansas Technical Symposium in Overland Park. Come and see presentations on Orion I/O, Orion Redundancy, Bitronics M650, PowerPlex II with I/O, and Bitronics M87X...

    July 12, 2017 Doubletree Cedar Rapids

    2017 Iowa Technical Symposium

    Please register to attend the upcoming Iowa Technical Symposium in Cedar Rapids. Come and see presentations on Orion I/O, Orion Redundancy, Bitronics M650, PowerPlex II with I/O, and Bitronics M87X...

  • NovaTech Utility Systems and Services

    Almost half of NovaTech’s business is in Systems and Services including web page design, panel design, math and logic development, Orion configuration, and onsite installation and commissioning. Mark Matassa explains how our engineers can work with you to reduce project execution time at the 2016 DistribuTECH Conference and Exhibition in Orlando, Florida.

    March 18, 2016

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