D20 is made by GE-Harris company in Canada's plant development, manufacturing and testing of the world's most advanced technology, the most widely used operation, the largest number of network distributed RTU products. In the power grid has been around the world more than ten thousand sets of equipment in the operation of power grid, Chinese also has more than 700 sets of D20 in operation. GR-90, Indactic9033, 8894 and other core products are D20 products.
In the aspect of hardware design, D20 adopts high speed, low power consumption, low noise, high reliability, large scale CMOS controller and programmable array technology; its structure and performance parameters, in full accordance with the IEC in Europe and North America IEEE on electronic equipment operating in the high voltage, strong magnetic field environment anti overvoltage and strong magnetic field the impact of interference of standard design and testing, so it can be widely used in electric power, railway, oil and gas transportation, water supply and other kinds of bad working environment and requirement of monitoring system for high reliability..
D20 uses a network distributed system structure, so it can be for a variety of applications according to the actual need to configure. The minimum configuration of D20 system for the 16 point, 8 point DI DO and 8 bit AI, but can be very flexible to expand into a thousand points or tens of thousands of points of I/O processing ability data acquisition and control system.
The main D20 CPU module uses the VME bus and the open software platform standard, basic allows D20 to be in the data acquisition and control functions on the standard, to achieve a wide range of control application functions, such as substation voltage and reactive power control (VQC), adjusting control, power distribution network of turbine generator unit fault detection, isolation and the restoration of power supply control. At present, D20 can provide more than twenty above the standard control applications, and its powerful function of programmable control (PLC) and automatic control (PID) tools software, so that users can own programming, to achieve control of application of the various functions.
The main CPU module of D20 has seven independent communication interface and more than 140 different kinds of communication protocol library, therefore, D20 can easily with a variety of computer master station system, relay protection equipment, automatic control device, metering and measuring table communication meter, and the use of the software platform and open system structure, constitutes a set of substation integrated automation system, hydro turbine governor control system, electrical measurement acquisition and processing system.
D20 not only can satisfy you now for the high reliability, high technology level, low maintenance cost of investment requirements, can also meet your future more system application requirements of complex.
The basic structure and characteristics of D20 2.1
Distributed processing configuration based on an open, D20 consists of the following main components:
L D20M the main CPU module, completes the communication and control processing function;
L D20A
A maximum of 32 analog (10DC/20mA) input module, complete the DC analog input processing function;
L D20S
A maximum of 64 digital (125DC/6mA) input module, digital input processing functions complete;
L D20K
A maximum of 32 normally open drive control output module, completes the control output processing function;
L D20C
Combined type input / output module,
Complete the input /8 output analog 8 Road (10DC/20mA),
16 input /8 output digital quantity (125DC/6mA) input / output processing function;
L D20AC
9CT (1 or 5A) /6PT (110V50Hz) AC analog input module, complete AC analog input processing function;
L D20KI control output intermediate relay module;
L D20Link D20 communication network;
The working power supply L D20 power supply D20 and signal power; (D20 SPS-1031 P/N580-0297)
(D20 SP_SPS AC220v/AC +5v@5A+12v@1A-12V@0.5A48VISO@1.5A power supply)
D20Modem D20 and other computer master station, satellite RTU or IED communication modem.
D20是由GE-Harris公司在加拿大的工厂开发、制造和测试的世界上技术最先进、应用最广泛、运行数量最多的网络分布型RTU产品。在世界各地电网已有超过一万套的设备在运行，中国电网中也有超过700套的D20在运行。GR-90、Indactic9033、8894等核心产品均为D20产品。
在硬件设计方面，D20采用了高速、低功耗、低噪音、高可靠性、超大规模CMOS控制器件和可编程阵列技术；其结构和性能参数，完全按照欧洲的IEC和北美洲的IEEE关于在高电压、强磁场环境中运行的电子设备抗过压和强磁场冲击干扰的标准进行设计和试验，因此可广泛应用于电力、铁道、油气输送、供水等各类运行环境恶劣又要求高可靠性的监控系统中。
D20采用网络分布型体系结构，因而可针对各种应用场合按实际需要进行配置。D20系统的最小配置为16点DI、8点DO和8点AI，但可以非常灵活地扩展成一个有几千点或几万点I/O处理能力的数据采集或控制系统。
D20主CPU模块采用了标准的VME总线和开放式软件平台，使得D20能够在标准的数据采集和控制功能的基础上，实现广泛的控制应用功能，如变电站的无功电压控制（VQC）、水轮发电机组的调节控制、配电网络的故障检测、隔离和恢复供电控制。目前，D20可以提供超过二十种以上的标准控制应用，而其功能强大的可编程控制（PLC）和闭环控制调节（PID）工具软件，使得用户可以自己编程，实现各种不同的控制应用功能。
D20的主CPU模块有七个独立的通信接口和超过140种以上的通信规约库，因此，D20能够方便地与各种计算机主站系统、继电保护设备、自动控制装置、计量及测量表计等进行通信，并利用开放的软件平台和体系结构，构成一套变电站综合自动化系统、水轮发电机组调节控制系统、电度量采集和处理系统等。
D20不仅能满足您现在对高可靠性、高技术水准、低维护成本的投资要求，也能满足您将来更为复杂的系统应用要求。
2.1 D20的基本结构及特点
基于一种开放的分布式处理配置，D20由以下主要部件组成：
l D20M 主CPU模块，完成通信及控制处理功能；
l D20A
最大32个模拟量(最大10DC/20mA)输入模块，完成直流模拟输入处理功能；
l D20S
最大64个数字量(最大125DC/6mA)输入模块，完成数字输入量处理功能；
l D20K
最大32个常开驱动控制输出模块，完成控制量输出处理功能；
l D20C
组合型输入/输出模块，
完成8路输入/8路输出模拟量(最大10DC/20mA)、
16路输入/8路输出数字量(125DC/6mA)输入/输出处理功能；
l D20AC
9CT(1或5A)/6PT(110V50Hz )交流模拟量输入模块，完成交流模拟量输入处理功能；
l D20KI 控制输出中间继电器模块；
l D20Link D20通信网络；
l D20电源 D20的工作电源和信号电源；(D20 SPS-1031 P/N580-0297)
D20Modem D20与其他计算机主站、卫星RTU或IED通信的调制解调器。
As a gateway (Getway), realize between each computer master station, IED equipment and RTU exchange of information processing. As many as 7 l communication interface and computer station, IED, RTU communication.
The main characteristics of D20
L computer station and more than 140 kinds of IED communication protocol library.
Communication processing l multi database management of multi master station.
L as a data collector to realize the communication with IED and satellite RTU.
Programmable logic control l fully integrated (Prologic) to realize the automatic control function.
L provides a Windows environment configuration tool software, make the database definition and parameter setting of D20 is very convenient.
L can be convenient to add the SCADA or automatic control functions, such as PID control, load frequency control, SOE recorder
L can constitute a pair of CPU, to achieve high reliability applications.
The structure of l support from the 24 point I/O at least to thousands of even tens of thousands of I/O points.
D20 can adapt to different applications, such as:
Transformer substation, power plant L new.
The original L RTU update equipment, can be directly installed in the original cabinet, do not need to re erection of power.
L install the old station transformation space is limited or the length of the cable limited.
L outdoor installation.
3, an overview of D200
D200 is a control platform of multi processor based on VME bus is developed on the basis of D20. Using high-speed D200, low power, low noise, high reliability, large scale CMOS controller and programmable array technology, has a higher flexibility, and reduced the logic circuit.
The software platform of CCU PSOS real-time operating system, multi task VME bus and open embedded D200 using standard parallel processing, parallel processing configuration using multiple CPU, multiple serial communication port communication, can configure the Ethernet interface, and through the network with D25 between IED devices or with other computer systems exchange information.
D200 uses a network distributed system structure, so that different applications can be configured according to the actual need. If you need to expand, increase function, simply increasing the expansion module, application software, and does not require the replacement of existing equipment, so it can reduce the operation cost, but also easy to install and maintain.
D200 supports up to forty-two independent communication interface and communication protocol of more than 140 more than. Therefore, D200 can make with various computer master station system, relay protection equipment, automatic control device, metering and measuring meter for the communication is convenient and flexible, and can use the software platform and open system structure, constitutes a set of integrated substation automation system, the water wheel generator regulating control system, electrical measurement acquisition and processing system etc..
D200 not only can satisfy you now for the high reliability, high technology level, low maintenance cost of investment requirements, can also meet your future more system application requirements of complex.
The main features of D200:
VME bus technology of L standard, VME bus module can be extended with different functions.
L multi processor environment (up to 6 D20M/D20ME).
L up to 240 I/O modules.
- Maximum 15000 I/O points.
L to the 42 communication interface, more than 140 kinds of different communication protocol implementation at the same time, with the following all kinds of communication equipment and system
---IEDs intelligent electronic equipment.
---SCADA/EMS/DMS system, HMI system, MIS system.
---RTUs, Sub RTUs.
---PLCs.
- other.
L supports Ethernet TCP/IP/DNP, IEC 60870-5-104, to achieve communication with the system and equipment communication protocol UCA.
L redundancy configuration and local area network structure.
3.1 D200 main processor
All the features described earlier by D20M++ and D20ME (see Section 2.2).
Multi processor 3.2 D200 single
Multi CPU D200 single composed:
L D20M++/D20ME VME Bus processor module.
L VME Bus 8MB shared memory module.
L +5VDC power supply.
L + 12VDC power supply.
The L VME Bus Ethernet interface module.
L VME equipment rack.
D200 all the system software as firmware resides in EPROM, the core of D200 software CCU, CCU can make multiple D20M++/D20ME CPU modules operating in parallel in a system, each module can be used for the completion of their specific application task memory data exchange through the system sharing, realize multi task parallel processing function.
D20 and D200 table as shown in figure 3-1.
作为一个网关（Getway），实现各计算机主站、IED设备及RTU之间的信息交换处理。l 多达7个通信接口与计算机主站、IED、RTU进行通信。
D20 的主要特点
l 超过140 种的计算机主站和IED的通信规约库。
l 多数据库管理实现多主站的通信处理。
l 作为一个数据集中器实现与IED和卫星RTU的通信。
l 完全集成化的可编程控制逻辑（Prologic）实现各种自动控制功能。
l 提供Windows环境下的组态工具软件，使得D20的数据库定义和参数设置非常方便。
l 可方便地增加SCADA或自动控制功能，如PID控制、负荷频率控制、SOE记录仪等
l 可构成双CPU，实现高可靠性的应用。
l 支持从最少的24个I/O点到几千甚至上万个I/O点的结构。
D20可以适应不同的应用场合，比如：
l 新建的变电站、发电厂。
l 原有RTU设备更新，可直接安装在原来的机柜中，不需要重新架设电源。
l 安装空间有限或电缆长度有限的老站改造。
l 户外安装。
3、 D200概述
D200是在D20基础上发展起来的基于VME总线的多处理器的控制平台。D200 采用高速、低功耗、低噪音、高可靠性、超大规模CMOS控制器件和可编程阵列技术，具有更高的灵活性，并减少了逻辑线路。
D200采用标准的VME总线和开放式嵌入型的PSOS实时操作系统、多任务并行处理的CCU软件平台，使用多CPU的并行处理配置，多个串行通信口通信，可配置以太网接口，并通过网络同D25等IED设备之间或与其它计算机系统互换信息。
D200采用网络分布型体系结构，使得不同的应用可以根据实际的需要进行配置。若需要扩充、增加功能时，只需简单地扩充模件，增加应用软件，而不需要替换已有设备，因而可以降低运行成本，而且更易于安装和维护。
D200可支持多达四十二个独立的通信接口和超过140种以上的通信规约。因此，D200能够使之与各种计算机主站系统、继电保护设备、自动控制装置、计量及测量表计等进行方便灵活的通信，并可利用开放的软件平台和体系结构，构成一套变电站综合自动化系统、水轮发电机组调节控制系统、电度量采集和处理系统等。
D200不仅能满足您现在对高可靠性、高技术水准、低维护成本的投资要求，也能满足您将来更为复杂的系统应用要求。
D200主要特点：
l 标准的VME总线技术，可扩展不同功能的VME总线模块。
l 多处理器环境（多至6个D20M/D20ME）。
l 多达240个I/O模块。
---最大15000个I/O点。
l 多至42个通信接口，140种以上不同通信规约实现同时与下列各种设备和系统通信
---IEDs智能电子设备。
---SCADA/EMS/DMS系统、HMI系统、MIS系统。
---RTUs, Sub RTUs。
---PLCs。
---其它。
l 支持以太网TCP/IP/DNP，IEC 60870-5-104,UCA的通信协议实现与上述系统和设备的通信。
l 双机冗余配置和局域网结构。
3.1 D200主处理器
具有前面所述的D20M++和D20ME的全部功能（见2.2节）。
3.2 D200单机多处理器
D200单机多CPU由以下模块组成：
l D20M++/D20ME VME Bus 处理器模块。
l VME Bus 8MB 共享存储模块。
l +5VDC电源。
l ±12VDC电源。
l VME Bus 以太网接口模块。
l VME设备机架。
D200系统的全部软件作为固件驻留在EPROM中，D200软件的核心为CCU，CCU可以使多个D20M++/D20ME CPU模块在一个系统中并行运行,每个模块可以用于完成各自特定的应用任务,通过系统中共享内存的数据交换，实现多任务并行处理的功能。
D20与D200对照表如图3-1所示。
3.3 D200 VME Bus interface
D200 VME bus interface to the D20M++/D20ME module can use, control and VME bus arbitration. The function by a system control circuit, control circuit and cache which bus. The system can choose are controlled by a PLD to achieve. Single bus Zhong the circuit performs VME Bus load, start the system clock and bus timeout monitoring.
D200 bus control is implemented by the bus controller. The controller provides the VME BUS connection required by the interface signal is D20M++/D20ME. The bus controller is a high-speed bus requester and the timing generator. The requester is all order full asynchronous and control of the acquisition and use of buses required. When the process is completed, will release the bus controller.
3.4 D200 VME BUS memory
D200 VME BUS for each D200 central control unit (CCU) provides a memory module multiple D20M++/D20ME processor sharing. The VMEBUS memory module will be used as CCU memory resident, also as a public CCU database. It uses CMOS chip to equipped with battery back-up, and the capacity of 8MB of memory, in this connection the 32 bit VME bus.
3.5 D200 VME Ethernet interface
VME Ethernet D200 module consists of VME bus Ethernet interface module and the Ethernet adapter, each VME total export
Interface module can support two independent Ethernet adapter, Ethernet adapter can be a 10BaseT RJ45 interface to the twisted pair socket type, also can be the 10Base FL optical interface, shall be determined at the time of order.
D200 system of 3.6 double configuration
Basic as shown in Figure 3-2 structure of dual computer system, D200 system with dual configuration can work in a hot standby state or parallel working state.
The operation mode of the main equipment l double
All of the I/O modules are connected to the two sets of D200 using dual port D.20Link, and serial interface of external communication by switching module is connected with an outer device RS232, between two D200 one for identifying the running state of the serial port connected, two sets of D200 work in the main and standby state, from the main D200 is responsible for the operation when the main D200, when a fault occurs, the fault automatic switching software running of the whole system will switch to another D200, the realization of main and standby switching operation mode of D200 dual system. L dual parallel operation mode
The I/O module two D200 Ethernet connection, the same way with dual D200 standby mode, serial communication interface can be
Through the RS232 switching module access two D200, can also be directly respectively connected to two D200, state recognition of communication between D200 and export no longer need. At the two D200 completely in parallel operation mode, the control and data processing were selected by computer and external equipment, any one can master processor operation, when there's a failure, the device can automatically switch to run another D200 system.
3.7 standard and protection
SWC Fast Transient ANSI/IEEE C37/90.1~1989 (5KV).
Impulse Protection (5KV) IEC255-4.
IEEE 255-5 Insulation/Isolation:2500VRMS (3500VDC): >10Mohm@500VDC.
3.8 runtime environment
The operating environment temperature: -20 degrees - 70 C
The typical substation configuration of appendix 1D20/D200 of RTU unmanned
Guangzhou Power Supply Bureau 110KV substation telesignalling telemetry remote control 64 256 48 pulse 64
The 1 main CPU module group *1 *
(each module includes RTU standard firmware: real-time operating system, peripheral processing, database management, backstage diagnosis, terminal support and the hardware module)
WESXDAC D20M+KIT (Large Memory Configuration)
-1 Wesdac D20M+
512k RAM, 128K NVRAM, 512K EPROM
-1 Single Slot Bin
-1 D20 Power supply
2 Modem and communication module group *1 *
WESDAC 202/V.23 RACK MODEM KIT
-1 Wesdac 202/.23 Rackmount Modem
-1 RS232 Cable Assembly
3 analog input (AI) in group *2
WESDAC D20A KIT STANDARD TERMINATION
-1 Wesdac D20A
-1 Westerm D20A
-1 Duct Panel
-32 Input Scaling Adaptors
-1 D20 Cable Assembly
4 digital or pulse input (DI/PI) group *5 *
WESDAC D20A KIT STANDARD TERMINATION
-1 Wesdac D20S
-1 Westerm D20S
-1 Duct Panel
-1 D20 Cable Assembly
The 5 control output (CO) group *2 *
WESDAC D20KR KIT D-TYPE TERMINATION
-1 Wesdac D20K
-1 Westerm D20KR
-1 Duct Panel
-1 D20 Cable Assembly
6 WESDAC D20KI1 KIT STANDARD TERMINATION*6 group *
-1 Wesdac D20KI1
-16 KUEP Relays (Single Form X)
-1 Termination Cable Assembly
-1 Duct Panel
7 RTU cabinet (Inclode the Phoenix terminal) *2 group *
8 D20 remote communication and remote control of auxiliary power supply (only when I/O >5) group +DPI*1 *
9 DNP3.0 protocol group *1 *
0 Modem (used for remote maintenance)
3.3 D200 VME Bus 接口
D200 VME总线接口使D20M++/D20ME模块可以使用、控制和仲载VME总线。该功能由系统控制电路、总线控制电路和缓存所组成。可选用的系统控制由一个PLD去实现。该电路执行VME Bus的单级总线仲载、启动系统时钟和总线的超时监视。
D200的总线控制是由总线控制器实现的。该控制器为D20M++/D20ME提供了对VME BUS连接所需的全部接口信号。总线控制器是一个高速的总线请求器和定时发生器。该请求器是全异步并且控制了采集和使用总线所需的全部顺序。当过程完毕时，控制器就释放总线。
3.4 D200 VME BUS存储器
D200 VME BUS 为每个D200 中央控制单元（CCU）提供多个D20M++/D20ME处理器共享的存储器模块。该VMEBUS存储器模块将作为CCU驻留的存储器，也作为公用的CCU数据库。它采用CMOS芯片来配备后备电池，并把容量为8MB的存储器，连接在此32位VME总线上。
3.5 D200 VME 以太网接口
D200的VME 以太网模块由VME总线以太网接口模块和以太网适配器组成,每块VME总口
接口模块上可以支持两个独立的以太网适配器，以太网适配器可以是双绞线插口型的10BaseT RJ45接口，也可以是10Base FL光纤接口，须在订货时确定。
3.6 双机配置的D200系统
双机系统的基本结构如图3-2所示，双机配置的D200系统可以工作在热备用状态或并行工作状态。
l 双机主备运行方式
所有的I/O模块通过双端口的D.20Link分别连接到两台D200上，与外部通信的串行接口通过RS232的切换模块与外部设备联接，两台D200间有一个用于识别运行状态的串行口相联，两台D200工作在主备状态时，由主D200负责运行，当主D200发生故障时，故障自动切换软件将整个系统的运行切换到另一台D200,实现D200双机系统主备运行方式的切换。 l 双机并行运行方式
两台D200的I/O模块，以太网联接方式与双D200备用方式相同，串行通信的接口可以
通过RS232切换模块接入两台D200，也可以直接分别接入两台D200，D200间的状态识别通信口不再需要。此时两台D200完全处在并行运行模式，其控制和数据处理由外部计算机和设备进行选择，任何一台都可以作主处理机运行，当其中的一台故障时，设备能够自动切换到另一台D200系统上运行。
3.7 标准及保护
SWC Fast Transient ANSI/IEEE C37/90.1~1989（5KV）。
Impulse Protection（5KV）IEC255-4。
IEEE 255-5 Insulation/Isolation：2500VRMS（3500VDC）：>10Mohm@500VDC。
3.8 运行环境
运行环境温度： -20℃ - 70℃
广州—供电局 110KV—变电站 遥测64 遥信256 遥控48 脉冲64
1. 主CPU模块*1 组*
(各模块均包括RTU标准固件：实时操作系统、外设处理、数据库管理、后台诊断、终端支持等及下述硬件模块)
WESXDAC D20M+KIT (Large Memory Configuration)
-1 Wesdac D20M+
512k RAM,128K NVRAM,512K EPROM
-1 Single Slot Bin
-1 D20 Power supply
2. Modem 及通信模块*1组*
WESDAC 202/V.23 RACK MODEM KIT
-1 Wesdac 202/.23 rackmount Modem
-1 RS232 Cable Assembly
3. 模拟量输入(AI)*2组
WESDAC D20A KIT STANDARD TERMINATION
-1 Wesdac D20A
-1 Westerm D20A
-1 Duct Panel
-32 Input Scaling Adaptors
-1 D20 Cable Assembly
4. 数字量或脉冲量输入(DI/PI)*5组*
WESDAC D20A KIT STANDARD TERMINATION
-1 Wesdac D20S
-1 Westerm D20S
-1 Duct Panel
-1 D20 Cable Assembly
5. 控制量输出(CO)*2组*
WESDAC D20KR KIT D-TYPE TERMINATION
-1 Wesdac D20K
-1 Westerm D20KR
-1 Duct Panel
-1 D20 Cable Assembly
6. WESDAC D20KI1 KIT STANDARD TERMINATION*6组*
-1 Wesdac D20KI1
-16 KUEP Relays(Single Form X)
-1 Termination Cable Assembly
-1 Duct Panel
7. RTU 机柜(Inclode the Phoenix terminal)*2组*
8. D20 遥信、遥控辅助电源(仅当I/O >５时)+DPI*1组*
9. DNP3.0规约*1组*
0. Modem(used for remote maintenance)
ELECTRIC
