SCADA OVER TETRA Patrick Colling May 2016
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 3
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 4
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) 5
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 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 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 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 9
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 10
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 11
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 12
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 13
Network deployment Start September 2014 End February 2016 56 2 40 20 0 14
System Basic functionalities tested Coverage test ongoing Remote access operational 15
Steps TETRA RTU modem Rollout Fine Tuning Proof of Concept Time line - 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 16
Modem Proof of Concept (1) IP to IP IEC 60870-5-104 10 RTU connected Time out less than 3s NAT Configuration 17
Modem Proof of Concept (2) IP to Modem/RTU IEC 60870-5-104 10 Modem/RTU connected Time out less than 3s 18
Modem Proof of Concept (3) SERIAL to SERIAL IEC 60870-5-101 10 Modem/RTU connected Time out less than 3s 19
Modem Proof of Concept (4) ADDITIONAL TESTS Serial to serial with TETRA Gateway Embedded PLC OTA UPGRADE Modbus Protocol 20
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 21
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. 22
THANK YOU 23
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. Mail: cocoelements2015@gmail.com Phone: (+352) 691 290 760 Adresse: 57,rue de la Gare L-6440 ECHTERNACH Luxembourg 24