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REMOTE TERMINAL UNIT
 
Made for a remote surveillance, measureing and control, EMS-RTU is made for Power system management facility, and it enables an open interface, a high performance, a highly credible distibuted installation, and a remote management.
 
This device is organized with a main processing device, a field processing device and system management system. And in each control side, it is composed of an operation processing, a communication, input-output control and power.
   
  SYSTEM CONFIGURATION
   
  FUNCTION
 
  High Performance & High Credibility  
    Module protection  
    Parallel processing  
    Redundancy  
    Module unit Expansion  
  Distributed installation  
    Network communication method  
    Distributed operation  
    IED link  
  Remote management  
    Remote monitoring terminal equipment connection  
    SMS (system management system)  
    Software DLL (Down Line Load)  
    Internet based remote management  
  Open Interface  
    International standard protocol connection  
    Time Synchronization priority  
    System security management  
  Communication function  
    Connection with EMS (energy management system)  
    Multi-Protocol and Multi-Tasking  
  System diagnosis function  
    System Self-diagnosis and System Simulation Test  
    Cold/ Warm Restart, Application  
  Standard Time synchronization function  
    System total time synchronization  
    GPS standard time reception  
   
MPD (Main Processing Device)
 
MPD receives commands from EMS and deciphers them in order to implement pertinent replies and processing. Also, it is attached with function that manages system configuration device. Main functions are system self-diagnosis, configuration, database management, communication schedule management, protocol conversion, communication with EMS/ I/O module, HMI connection with System Management System and Time Synchronization management.
   
  Main Processing Unit
 
   
MPD receives commands from EMS and deciphers them in order to implement pertinent replies and processing. Also, it is attached with function that manages system configuration device. Main functions are system self-diagnosis, configuration, database management, communication schedule management, protocol conversion, communication with EMS/ I/O module, HMI connection with System Management System and Time Synchronization management.
As a SBC (single board computer) for a VMEbus, MPU board is designed adequately to be used as a system control board in a VME bus system.
Using Intel’s [XP 425 Microprocessor), high performance processing is possible. MPU is attached with 256 Mbyte SDRAM, 512 KB EPROM, 16 MB Flash Memory, 8KB NVRAM/RTC, two 10/100 Ethernet Port and two serial ports, for enabling various applications.
CPU   32BIT IXP 425 533MHz
Memory   SRAM 8MB, SDRAM 256MB, EPROM 512KB, FLASH 16MB, NVRAM 8KB
O.S   Real Time Multi Task O.S(VxWorks)
Communication PORT   RS-232C 2Port, Ethernet 5Port(100MBpx 2Port, 10MBps 2Port)
System Bus Structure   Uses International Standard Bus VME Bus(IEEE1014)
LED Display   PWR, RST, RUN, F/L, VME, SCN, OFA, OFB, LAN1/2/3/4(LINK, ACTIVE),
  CONSOLE&S1~S4(TX/RX)
Remarks   32Bit CPU with high speed processing capability
  CMOS Component with a low power technology
  VMEbus Master Interface
  High speed DMA supports, for VME32 Standard
  Watch-Dog Timer
  Battery Back up function
   
  SIO-A : Serial Input Output - Advanced
 
   
SIO-A board is a VMEbus board developed by using Intel’s [IXP 425 CPU] high-speed 32bit microprocessor.
As a Single Board Computer, it is designed as the most adequate Slave Processing Board in VME bus system. Through high performance 32 Bit data processor, it is a controller board of which offers high credibility. Attached with a protocol conversion function with various high level HOSTs, it is responsible for communication interface. With them, connecting DATA with MPU through sharing memory on VMEbus side.
Using four Ethernet ports, simultaneous connection is possible.
CPU   32BIT IXP 425 533MHz
Memory   SDRAM 64MB, EPROM 512KB, FLASH 16MB, NVRAM 8KB
Communication PORT   Ethernet 4Port(10/100MBps), RS-232C 2Port
System Bus Structure   Uses International Standard Bus VME
LED Display   PWR, RST, RUN, VME, 1~8(TX/RX)
Remarks   32Bit CPU with a low power technology.
  CMOS Component with a low power technology.
  VMEbus Slave Interface
  Watch-Dog Timer
   
  SIO-A : Serial Input Output - Basic
   
SIO-B board is a VMEbus board developed by using Intel’s [IXP 425 CPU] high-speed 32bit microprocessor.
As a Single Board Computer, it is designed as the most adequate Slave Processing Board in VME bus system. Through high performance 32 Bit data processor, it is a controller board of which offers high credibility. Attached with protocol conversion function with various high level HOSTs, it is responsible for communication interface with them, connecting DATA with MPU through sharing memory on VMEbus side.
Using eight serial ports on back side of a board, a simultaneous connection with multiple HOSTs is possible.
CPU   32BIT IXP 425 533MHz
Memory   SDRAM 64MB, EPROM 512KB, FLASH 16MB, NVRAM 8KB
Communication PORT   RS-232C 10Port, Ethernet 2Port(10MBps)
System Bus Structure   Uses International Standard Bus VME
LED Display   PWR, RST, RUN, VME, 1~8(TX/RX)
Remarks   32 Bit CPU with high speed processing capability
  CMOS Component with a low power technology.
  VMEbus Slave Interface
  Watch-Dog Timer
 
FPD (Field Processing Device)
 
Depending on installation condition, FPD is installed as same place as MPD, or it could be dispersed in power generation or switchyard field. It accommodates interface of surveillance points and control points, and collects and generates digital, analog, and pulse information. Internal communication between MPD and FPD is applied with 100 Mbps optical fiber Ethernet based network communication of redundant ring method. And FPD’s module is composed to meet demands of users. It can accommodate up to sixteen input/output modules.
   
  CPU Module
 
   
As a major processing module of FPD, a CPU module implements communication with MPD, accommodates I/O function modules responsible of input/output of a field in order to control data input/output of data with a field.
Using Intel’s IXP425 Microprocessor, it could process high performance processing. Attached with 256 Mbyte SDRAM, 512 KB EPROM, 16 MB Flash Memory, 8 KB NVRAM/RTC, two 10/100 Ethernet port, and two Serial Port, it enables various applications.
CPU   32BIT IXP 425 533MHz
Memory   SRAM 8MB, SDRAM 256MB, EPROM 512KB, FLASH 16MB, NVRAM 8KB
O.S   Real Time Multi Task O.S(VxWorks)
Communication PORT   RS-232C 2Port, Ethernet 4Port(100MBpx 2Port, 10MBps 2Port)
System Bus Structure   Uses International Standard Bus VME
LED Display   PWR, RST, RUN, F/L, VME, SCN, OFA, OFB, LAN1/2/3/4(LINK, ACTIVE),
  CONSOLE&S1~S4(TX/RX)
Remarks   32 Bit CPU with high speed processing capability
  CMOS Component with a low power technology.
  VMEbus Master Interface
  High speed DMA supports, for VME32 Standard
  Watch-Dog Timer
  Battery Back up function
   
  Digital Input Module
 
   
DIM has functions of electric facility breaker open and shut, alarm state, relay auxiliary contact on/off state monitoring, SOE function. It detects electric facility’s block and open and shut state of each relay by using optical isolation method, and transmits this data to common control module. A state of breaker’s open and shut having a reclosing function, relay’s auxiliary state monitoring such as an alarm state rapidly detects On-Off, Off-On, On-Off-On, Multi-Off state in order to transmit data of which was ordered from SOE function.
CPU   32BIT TMS320C32
Memory   SRAM 1MB, EPROM 128KB, 4KB DPRAM, 32KB EEPROM
Input points   32 Point / Module
Input Signal   Dry Contact
Monitoring Voltage   48V DC
SOE Resolution   1msec
Debounce Time   4~64msec (modification available)
LED Display   PWR, RST, RUN, VME, S1, S2, 상태표시 1~32
Remarks   32 Bit CPU with high speed processing capability
  CMOS Component with a low power technology
  VME32 Standard, VMEbus Slave Interface
  Watch-Dog Timer
  Battery Back up function
Insulation method   Photo Coupler
   
  Digital Output Module
 
   
DOM is activated when upper HOST does remote control, and a control output is a pulse signal using Dry-Contact point. It is used when a Trip/Close of same voltage performed and it is not activated when more than two breakers are chosen simultaneously.
CPU   32BIT TMS320C32
Memory   SRAM 1MB, EPROM 128KB, 4KB DPRAM, 32KB EEPROM
Output points   16 Point / Module
Output Signal   Relay Contact
제어 Holding Time   100ms ~ 6000ms(조정가능)
Controlling Voltage   24V DC
LED Display   PWR, RST, RUN, VME, S1, S2, OPR, RLY, 출력 1~32
Remarks   32 Bit CPU with high speed processing capability
  CMOS Component with a low power technology.
  VME32 Standard, VMEbus Slave Interface
  Watch-Dog Timer
  Check Before Operate function
Insulation method   Relay and Secondary division by Relay
  Output side is insulated electronically (Photo Coupler insulation)
   
  Analog Input Module
 
   
AIM converts analog signal attained from electricity facility to digital signal which is sent to MPD. And its input is supplied at conversion device.
CPU   32BIT TMS320C32
Memory   SRAM 1MB, EPROM 128KB, 4KB DPRAM, 32KB EEPROM
Input Points   16 Point / Module
Input Signal   can be selected between 0~1mA, 4~20mA, 0~5V
Output Signal   16 BIT Digital
LED Display   PWR, RST, RUN, VME, S1, S2
Remarks   32 Bit CPU with high speed processing capability
  CMOS Component with a low power technology.
  VME32 Standard, VMEbus Slave Interface
  Watch-Dog Timer
   
  Analog Output Module
 
   
AOM is used for generator’s output control. A control output is an analog value (Set Point), and it is combined with a control facility (DCS). A control output maintains its current value until next command. A set of point output module displays information received from center device into decimal number, and sends output of control and alarm signals.
CPU   32BIT TMS320C32
Memory   SRAM 1MB, EPROM 128KB, 4KB DPRAM, 32KB EEPROM
Output Points   4 Point / Module
Output Signal   4~20mA, 0~5V중 선택 가능
Designated output   16 BIT Digital
LED Display   PWR, RST, RUN, VME, S1, S2
Remarks   32 Bit CPU with high speed processing capability
  CMOS Component with a low power technology
  VME32 Standard, VMEbus Slave Interface
  Watch-Dog Timer
Insulation mothod   Photo Coupler insulation
   
  Pulse Input Module
 
   
PIM is used for pulse data processing. Pulse data is generated at electricity facility (e.g.: generation capacity). Similar to digital data, it uses and processes an Optical Isolation method. Data changed in its state is saved and integrated within current. Followed from EMS command signal, it transmits and processes data.
CPU   32BIT TMS320C32
Memory   SRAM 1MB, EPROM 128KB, 4KB DPRAM, 32KB EEPROM
Input Points   8 Point / Module
Input Current   less than 6mA
Input Voltage   DC 48V (Pulse Count)
Debounce Time   4 ~ 64ms
LED Display   PWR, RST, RUN, VME, S1, S2
Remarks   32 Bit CPU with high speed processing capability
  CMOS Component with a low power technology.
  VME32 Standard, VMEbus Slave Interface
  Watch-Dog Timer
Insulation method   Photo Coupler insulation
   
  Pulse Output Module
 
   
POM is used when a generator automatically sends calculated fluctuation value at EMS. And it is sent as pulse-width signal using a contact point without an application of check before operation function.
CPU   32BIT TMS320C32
Memory   SRAM 1MB, EPROM 128KB, 4KB DPRAM, 32KB EEPROM
Output Points   4 Point / Module
Output Relay Burden   DC 125V, 0.5A (Dry Contact)
Activation method   Direct Operate
Relay activation time control range   200ms ~ 1.4sec (variable 200ms STEP)
LED Display   PWR, RST, RUN, VME, S1, S2
Remarks   32 Bit CPU with high speed processing capability
  CMOS Component with a low power technology
  VME32 Standard, VMEbus Slave Interface
  Watch-Dog Timer