Multi-function RTU is a device installed in the substation fields for monitoring and control of power equipment scattered around electric power fields as a multi-function remote terminal unit to acquire, analyze and process system operation data such as providing operation information of power equipment to the upper-level remote scada host or controlling power facility by command from Sub-Control Center and Regional and Control Center, etc. which is composed of MPD, FPD, and IAPD.

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• Remote monitoring function

  - Circuit breaker open/close state, relay operation state
  - SOE(Sequence Of Event) information

  - Other binary state information

• Remote measurement function

  - Voltage , current, active power, reactive power
  - Frequency, power factor

  - COA(Change Of Analog Event)
  - Transformer Tap position, transformer temperature

• Remote control function

  - Binary state operation

  - Stepwise continuous operation

• Simulator control function

   

• Management task function

  - Database generation, change, storage management
  - Database Download and Upload

  - System Configuration management

• Communication task function

  - DB editing function per each of more than 8 hosts
  - Data communication and communication error detection

  - Data file transmission

• System diagnosis function

  - System self diagnosis and system simulation

• Standard time synchronization function

  - Overall system time synchronization

  - Satellite standard time(GPS) receiving

MPD is a pivot part of multi-function RTU as the central processing device which performs connection among upper-level Host, FPD and IAPD acquiring information on power equipment field as well as efficient operation and management between systems, and transmits field Data acquired from the low-level FPD, IAPD, IED of system, power loss and abnormality status of each device.

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  Interface is possible by using upper-level Host system and SIO Board, data from the field is acquired through FPD/IAPD CPU Board while data is linked through Serial/Parallel Port in the board or SIO Board on VMEbus for connection with outside.
  
  In addition, it is operated as the main processing device of overall MPD device such as logging or saving operation of events produced from FPD/IAPD and conversion function for database, etc. and takes charge of pivot functions of reliable MPD device through high-speed data processing.

CPU	32BIT MPC8270 450MHz
Memory	SDRAM 128MB, Boot Device 16MB, EEPROM 512KB FLASH 8GB, NVRAM 512KB
O.S	Real Time Multi Task O.S (VxWorks)
Communication PORT	Maintenance RS-232C 1Port, RS-232C 4Port, Ethernet 4Port ( 0/100MBPS)
System Bus Structure	국제표준버스인 VME Bus (IEEE1014) 채용
LED Display	PWR, RST, RUN, VME, SCN, LAN1/2/3/4(LINK,ACTIVE), CONSOLE)
Features	- 32Bit CPU with high-speed processing capability - CMOS Component of VME3 with low power consumption - VMEbus Master Interface - High-speed DMA supported for 2 Standards - Watch-Dog Timer - Battery Back up Function

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  It is a low-speed communication module, and the module which shares data with MPU through shared memory access in standard data format, and takes charge of communication interface function with the upper level by being equipped with protocol conversion function for diversified upper-level hosts(NCC,RCC,SCC,SICS).

CPU	Cortex-A5 ARM Processor, 536MHz
Memory	512MB DDR2, Bettery Backup SRAM 1MB, EEPROM 1MB
Communication PORT	Ethernet 2Port, Sreial RS-232C 8Port
System Bus Structure	International standard VME Bus (IEEE1014)
LED Display	PWR, RST, RUN, LINK, S1~S10(TX/RX)
Features	- 32Bit CPU with high-speed processing capability - CMOS Component of low power consumption - VMEbus Slave Interface - Watch-Dog Timer

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  It is the Module which controls communication with MPD and Digital Input/Output Module to perform monitoring and control of field equipment, and can control up to the maximum of 10 modules. It uses VMEbus of Backplane for communication with module.

CPU	32BIT MPC8270 450MHz
Memory	SDRAM 128MB, Boot Device 16MB, EEPROM 512KB, FLASH 8GB, NVRAM 512KB
Communication PORT	Maintenance RS-232C 1Port, RS-232C 4Port, Ethernet 4Port ( 0/100MBPS)
System Bus Structure	VME International standard Bus (IEEE1014)
Features	- VMEbus Master Interface - Watch-Dog Timer

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  Monitoring unit is an Interface Module for Digital Input and can process Digital Status. It is connected with CPU Module through VME BUS, with protective circuit for surge and preventive circuit for Debounce being embedded in the input unit. When integration is to be used, it can be used as a PI Module.

CPU	32BIT ARM Cortex STM32F103ZE 72MHz
Memory	DPRAM 32Kbyte, 32Kbte MRAM, FLASH 512Kbyte
Input Point Capacity	32 Points / Module
Input Signal	Dry Contact
Monitoring Voltage	48V DC
SOE Resolution	1msec
Debounce Time	4~64msec (Adjustable)

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  It is the module which drives field equipment by receiving commands from CPU Module, has Interlock configured for hardware and Arm/Operating command for software so as to retain high stability and reliability.

CPU	32BIT ARM Cortex STM32F103ZE 72MHz
Memory	DPRAM 32Kbyte, 32Kbte MRAM, FLASH 512Kbyte
Output Point Capacity	16 Point / Module (Open, Close 1Point)
Output Signal	Relay Contact
Control Holding Time	100ms ~ 6000ms(Adjustable)
Control Voltage	24V DC
LED Display	PWR, RUN, VME, FAIL, TRIP/CLOSE RLY. Output FND 1~16
Features	- 32Bit CPU with high-speed processing capability - CMOS Component of low power consumption - VME32 Standard, VMEbus Slave Interface - Watch-Dog Timer - Function for Check Before Operate
LED Display	1 and 2nd separation by Relay Output unit insulated electrically (Photo Coupler insulated)

IAPD는 전력설비의 C.T.P.T값을 입력 받아 다중의 전력정보(전압, 전류, 유/무효 전력, 주파수 역률 및 전력량 등)를 생성하거나 변환기를 통한 Analog정보를 계측하여 상위 MPD에 제공하는 장치입니다.

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  MCCU has functions being transmitted of various processed information on power equipment operation from the signal conversion module to transmit data and control upon request from MPD in a given pre-defined data format.

CPU	32BIT ARM940T 166MHz
Memory	DRAM 32MB, Battery Backup SRAM 4MB, EEPROM 1MB, FLASH 2MB, NVRAM 8KB
Communication PORT	Maintenance RS-232C 2Port, RS-232C 3Port, Ethernet 4Port(100MBps 2Port, 10MBps 2Port)
System Bus Structure	International standard bus of VME Bus (IEEE1014) employed
LED Display	PWR, RST, RUN, F/L, VME, SCN, OFA, OFB, LAN1/2/3/4(LINK,ACTIVE), CONSOLE & S1~S4(TX/RX)
Features	- 32Bit CPU with high-speed processing capability - CMOS Component of low power consumption - VMEbus Master Interface - High-speed support of DMA for VME32 Standard - Watch-Dog Timer

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  Signal conversion module is an Interface Module for Analog Input and the module which is linked with MCCU Module through shared memory in VME bus and calculates active/reactive power, frequency, power factor and wattage, etc. by being inputted of voltage and current from CT and PT of module.

CPU	32BIT TMS320C32 40MHz
Memory	SRAM 256KB, ROM 128KB, EEPROM 8KB
Communication PORT	RS-232C 1EA (38.4kbps Async)
System Bus Structure	VME International standard Bus (IEEE1014) employed
Analog Input	18 Channel / Module
input Method	Voltage
Resolution	16bit A/D Converter
Input Type	Bipolar
Conversion Time	Faster 10㎲

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  AIU performs the function of calculating real values of Tap Position and converting them to database for management by receiving Database(setup information) of the main system device(MPD) from the communication control module with direct current (0~1mA)values received.

CPU	32BIT TMS320C32 40MHz
Memory	512KB SRAM, 128KB EPROM
System Bus Structure	International standard bus of VME Bus (IEEE1014) employed
Analog Input Score	32 Channel / Module
Input Signal Range	0~1mA, -1~+1mA, 4~20mA, 0~5V
Resolution	16bit A/D Converter
Input Type	Bipolar
Conversion Time	Faster 10㎲