Patrick Colling

May 2016

SCADA OVER TETRA

Patrick Colling Managing Director of CoCo elements

Deployment of the FO network in close collaboration with third parties relating to the design/engineering,

implementation, commissioning and maintenance of the network.

Design, implementation and monitoring of a transmission architecture based on PDH-SDH-IP/MPLS

technology. Looking for synergies for data transmission depending on requests (bandwidth, data

security...)Transmission between SCADA and RTUs using legacy protocols (TG065, TG80x, SEAB-1F) and

standard protocols (IEC-104, IEC-101).

Design of a cybersecurity policy based on firewalls, authentication, access control.

Design, engineering, installation and commissioning of smaller projects (ex: protocol converters SEAB-1F

to IEC-104; signal converters TTY to RS232).

Define and forecast annual budget for Communication Infrastructure services (OPEX and CAPEX)

Deployment of a multi-services architecture network.

Project Manager at Creos Luxembourg, of a TETRA network covering needs for critical voice communication

and data transmission, especially to the MV level.

Communication Infrastructure at utilities

The Communication Infrastructure aims to

secure Data Exchange of the Grid applications:

PDH/SDH, IP/MPLS, MPLS/TP, SCADA,

RTU’s, Power Quality Management, TETRA,

Smart Metering, Teleprotection, Current

Differential Protection, Video surveillance,

VoIP, Fiber Optic Network…

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The availability of near real time information at the customers, and at strategic distribution assets (like MV/LV

transformers and LV lines), provides valuable information such as load and voltage at those points, events

(indicating among others: continuity of supply, neutral cut, fraud, etc), earth leaks, serial faults, etc. The massive

information available (spontaneous or by request) is analyzed and presented to the users in a synthetic way, in order

to understand network status and identify critical situations that require immediate action.

Utilities need access to radio frequency spectrum because they have increasing communications needs for

operational reliability, safety and security…

Severe weather caused last Friday in Belgium for power outages and flooding. Nevertheless, the TETRA network

continued to work flawlessly.

This proves that even with elimination of electricity, the TETRA network continues to function properly.

Feb 2016

Strong wind causes power outages in several places in Norway that led to outages of the TETRA network.

In total there are around 1,200 stations on the TETRA network and 25 base stations were out of operation.

Outages were mainly due to power failures and breach of transmission lines to the base stations. With regard to the

transmission lines, the emergency network depends on the robustness of the power supply and leased

telecommunication lines from subcontractors….

Feb 2016

Public Safety bodies around the world are looking to deploy networks using the LTE standard, to replace aging

infrastructure based on TETRA, PMR, and P25. LTE has much to recommend it in this role, but “standard” LTE

systems lack key functionality that is required to replace the legacy public safety networks.

LTE Networks are usually owned by commercial operators and service providers and are driven by business

models.

At utilities a communication infrastructure never has to be a business model

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Drivers

- Voice (e.g. replacing existing analogue systems)

• Terminals, fixed devices

• Redundant infrastructure

• Coverage

- DATA (monitoring and control)

• SCADA –RTU

• Windmill/Photovoltaic – Parcs

• E-Cars

• Leased Copper lines out of support

• Smart-Meters (e.g. Concentrators)

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The

Case

Luxembourg is connected to the German grid

(Amprion) via two double HV lines

Transport Grid

High Voltage (HV) : 220 kV et 65 kV

Distribution Grid

Medium Voltage(MV) : 20 kV

Low Voltage (LV) : 230/400 V High Voltage to High Voltage from 220 kV to

65 kV

– 6 stations

High Voltage to Medium Voltage from 65 kV

to 20 kV

–48 stations over Luxembourg

Medium Voltage to Low Voltage from 20 kV

to 0,4 kV

–2 428 stations

The Gas Network from Creos is

interconnected to the German, French

and Belgian Networks.

Transport Network

• High Pressure (HP) : 60-80 bar

Distribution Network

• Medium Pressure(MP) : 0,1-1 bar

• Low Pressure(BP) : 0,01-0,1 bar

The Network - Backbone for IP/MPLS

- Backbone for the TETRA network - Sites for TETRA base stations

Technologies analyzed

• DMR capacity problems, no spectrum in Luxembourg available

• SATELLITE the most cost intensive solution

• TETRA supported by spectrum availability from the regulator

• WIMAX not really covering voice

• GPRS too dependent from Telco operator, not very reliable

• CDMA 450 a favorite, but no spectrum in Luxembourg

• LTE too expensive, no spectrum in Luxembourg

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Request for Proposal (1)

• 500 Terminal (Handheld)

• 50 fixed devices

• 3000 Modems

• Coverage:

• 100% for the Modems

• 1m above ground for handheld

• indoor penetration via gateway functionality

• complete redundant infrastructure

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Request for Proposal (2)

• TEA1 (no security class specification)

• OTA (over the air upgrade, TETRA modem e.g.)

• Voice recording

• LAN interface to SCADA

• Serial interface to SCADA (IEC 101)

• HV Stations mostly to use as BS

• Time line for Network 2014-2015

• Time line for modems 2015-2018

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Analyzing Bids • 5 bidders

• 4 System Integrator/ 1 Vendor

• 5 different System provider

• 3 same Terminal provider

• 3 same Modem provider

• extreme differences in coverage planning

• extreme differences in number of carriers

• extreme differences in number of BS

• extreme pricing difference

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The decision • Network (SEPURA Systems)

• BS -> 70% inside HV station

• Best price/quality relation

• Terminal (SEPURA via SEPURA Systems)

• Best price/quality relation

• Adaptive accessories

• Modem (PICIORGROS via SEPURA Systems)

• Absolute the best integrated solution (RTU)

• Order dependent from a PoC

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Network deployment Start September 2014

End February 2016

0

20

40

56

2

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System

• Basic functionalities tested

• Coverage test ongoing

• Remote access operational

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TETRA RTU modem

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Time line

Step

s

Proof of Concept

Rollout

Fine

Tuning

- 16 digital Inputs

8 Event Counter and 8 Timer

- 8 (16) digital Outputs

PNP open Collector (500 mA)

- All inputs/outputs visible as LED

- 4 analog Inputs 0-20 mA or 4-20 mA

- Two Serial Ports

RS-232 or RS-485 / (RS-422)

IEC 60870-5-101

- One 10/100 MB Ethernet Port

IEC 60870-5-104

- 3 Watt RF power output

in 350-470 MHz range

Modem Proof of Concept (1)

• IP to IP

– IEC 60870-5-104

– 10 RTU connected

– Time out less than 3s

– NAT Configuration

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Modem Proof of Concept (2)

• IP to Modem/RTU

– IEC 60870-5-104

– 10 Modem/RTU connected

– Time out less than 3s

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Modem Proof of Concept (3)

• SERIAL to SERIAL

– IEC 60870-5-101

– 10 Modem/RTU connected

– Time out less than 3s

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Modem Proof of Concept (4)

• ADDITIONAL TESTS

– Serial to serial

– with TETRA Gateway

– Embedded PLC

– OTA UPGRADE

– Modbus Protocol

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Conclusion (1)

• All functionalities related to SCADA/RTU where successfully tested with real conditions

• Control of MV Level in a short term

• “All in one” fitting solution

• Confirmation of decision

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Conclusion (2) • AWARD at TCCA (2015) Best Use of TETRA in Utilities - Sepura Sepura was awarded for the Improved optimisation of resources and energy demand management for CREOS. Sepura is delivering a complete communication solution, comprising a TETRA infrastructure, TETRA radio terminals, and Piciogros TETRA RTU modems for SCADA control in the MV substations.

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THANK YOU

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Mail: cocoelements2015@gmail.com

Phone: (+352) 691 290 760

Adresse: 57,rue de la Gare

L-6440 ECHTERNACH

Luxembourg

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Patrick Colling has more than 35 years experience in this domain.

As communication expert and Project Manager he was part of Creos Luxembourg S.A.

for over 30 years.

His knowledge covers all aspects of communication, including fiber optics, wireless

technologies (TETRA), Multiplexer (SDH/PDH), Router (IP/MPLS) and various signal

converters.

The variation of his background in telecommunication, radio and SCADA/RTU,

teleprotection, video surveillance, Power quality management and Cyber security

provides a perfect foundation for designing full complex transmission networks, of

course always keeping in mind the mission critical conditions, typical for the utility

sector.