TELEMSCADA

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• TELEM-SCADA
• System structure.

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Data concentrator
Relay prot
RTU modules
Other equipments
TLM GPS
TLM transd
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Substations equipment

• Martem RTU modules
• TELEM-AI12
• TELEM-DI24
• TELEM-DO8
• TELEM-RTU22
• Martem transducers
• U200
• I55
• PQ205
• Martem GPS receiver
• GPS receiver based on Motorola board and has
  1ms accuracy.
• Relay protection
• Martem has experience in ABB, ALSTOM, SIEMENS,
  MERLIN GERIN relays.
• Data concentrator
• Martem has NT based data concentrator
  TELEM-2000 with 32 ports and
• DSP (Digital Signal Processor) based data
  concentrator GW-3 with 4 ports.

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Communication channels

• MARTEM offers equipment for data collection
  channels from substation to SCADA center.
• Leased line point to point channels
• Analogue leased line channels, multipoint
• Leased line radio channels, multipoint
• Optical single mode and multimode channels
• GSM channels. Offline, multipoint
• Communication protocols
• -         IEC 60870-5-101
• -         IEC 60870-5-103
• -         IEC 60870-5-104
• -         DNP 3.0
• -         Modbus
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• We have experience of integrating ABB,
  Siemens, Alstom and Harrys equipment to our
  system.

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• Network and communication interfaces
• LAN - Local area network and WAN - Wide area
  network
• Switches, hubs and routers are used for
  commutation information channels.
• Ethernet LAN 10Mbps(IEEE 802.3)
• Fast Ethernet 100Mbps
• Gigabit Ethernet 1Gbps (802.3ab)
• Optical Eternet, multimode(802.3z)
• Serial interfaces
• RS-232 (15m)
• RS-422 (1.2km)
• RS-485 (1.2km)
• RS-232/Fiber optics multimode or single mode
  converters

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Center system

• Center system functions.
• The goal for center system is to support the
  operative activities in electrical network.
• -         Monitoring the electrical network
  operation
• -         Planning and making the network
  connections
• -         Analysis of defects
• -         Analysis of network topology
• -         Overload decrease
• -         Guarantee of electrical quality
• -         Treatment of events and alarms
• -         Generation of reports
• -         Management of archives

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Security tools for avoiding unauthorized access
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Environment

• TELEM-SCADA software is designed for Intranet and
  Internet environment. Key features are
• Dispersed architecture makes possible to connect
  with system from any place.
• Ease of adding new clients
• TCP/IP protocol is widely used and gives
  possibility to share the TCP/IP channels with
  other applications
• The data encryption software and hardware can be
  used
• Remote access over TCP/IP
• Remote access over VPN
• Dial up access
• Users can do configuration work
• Software and hardware are scaleable and this
  makes possible to built systems with different
  size and configuration.

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Intranet and Internet based information system.
SCADA client SCADA client
SCADA client TCP/IP
Regional SCADA server Regional SCADA
server Regional SCADA server
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System features

• Step by step enlargement
• System modularity
• System and equipment compatibility with other
  producers equipment
• Open system with standard protocols
• Local staff can do configuration work
• Modern equipment technology
• User can connect with system from any place
• Special library of schema components
• Native language support
• Flexible administration possibilities
• Hardware configuration depends from center size
  (quantity of measurement and control objects) and
  importance of the system

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System security

• If possible, the SCADA is separated from other
  networks.
• Access to the system with user name and password
• Different access rights for users
• Firewall can be configured to let in only clients
  with certain IP addresses.
• In case of WAN the data encryption software and
  hardware can be used
• In case of dial up connection the call-back can
  be used.
• Registers all attempts of unauthorized access
  with time stamps.
• Registers all logins and logouts with time
  stamps.

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Redundancy configurations

• This is special configuration which serves the
  purpose to rise operation security and
  availability of running TELEM-SCADA system.
• The concept Hot standby systems means that two
  base system computers are interconnected via LAN
  in redundant relationship where one or both base
  systems are prepared for fast take-over at
  break-down in the other base system. An
  application in one base system operates as the
  hot application, while an identical application
  in the other base system is a standby
  application. The standby application is
  maintained by continuous shadowing (copying) of
  data from the hot application.
• When a fault occurs in the primary base system,
  the shadowing application in the standby system
  is started and it takes over all the operational
  functions. After recovery and restart of the
  former primary base system, it can either be used
  as standby base system, whereby the former
  standby base system is the primary base system,
  or the base system can be returned to their
  original tasks.

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• During the normal operation, the two base systems
  may function independently, each running one or
  more applications. Alternatively, one base system
  may be reserved exclusively for standby duty.
  Both base systems may contain several
  applications connected with an application in the
  other base system in a shadowing relationship.
• Two base systems, based on the same hardware, are
  interconnected via a LAN. The redundant base
  systems can share the same communication server
  or the communication server may be doubled as
  well.
• The redundant communication server means that two
  communication servers are dedicated for the same
  task. One communication server is operating and
  the other one is a reserve. The standby
  communication server is not operating but running
  and reday to take over at malfunction in hot one.
  When a take over occurs, the former communication
  server becomes the hot one and takes over the
  communication lines using MUX. Normally, the
  communication servers are equal and the standby
  communication server can be shifted to hot
  communication server and vice versa.

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System reliability

• Components from well-known manufacturers and
  suitable server case.
• RAID mirror disk arrays are used in servers
• Using hot swappable disks
• Reservation of communication and SCADA servers
• System powering via UPS
• Client computer can be easily replaced with any
  Windows PC