YOKOGAWA PSCAMAAN
YOKOGAWA PSCAMAAN
YOKOGAWA PSCAMAAN
SLC500小型可编程序控制器系统综述红皮书（中文）
特点
·处理快速、功能强大的处理器，内存最多可达64K字／指令(128K字节）。
·I/O站：不需要任何通讯模块，只需扩展电缆连接，每站最多可达3个框架、30个槽。
·计数器／定时器个数没有强制限定。
·多种形式的现场总线：远程I/O网，符合中国国家标准的现场总线DeviceNet, IEC61158国际标准总线ControINet等等：
·多种类型的扩展I/Q SLC500 110 (1746) ,Flex 110 (1794＆1797)，Point 110 (1734)等。
·有用于以太网的内置通讯口，还有适用于DH485, DH+,DeviceNet、ControINet和其他网络的通讯接口可选
·模块化和灵活性：用户可以精确地根据需要选择所需模块以构成其控制系统
·专用I/O：提供高速开关量的处理能力
·过程控制功能：丰富的模拟量I/O模块以及各种PID及运算指令。
·设计和制造按工业环境使用要求进行：在各种温度和湿度环境下都能正常使用，并能承受振动和冲击
standard industrial bus. The field controller supports PROFIBUS, FF, MODBUS, can and other countries
International standard fieldbus, PROFIBUS is the most widely used open fieldbus international standard in the world, which is divided into FMS, DP and pa
Level III, DP communication rate can be up to 12MB. PROFIBUS is used to connect distributed i/0 stations, field bus instruments and other intelligent devices.
The communication among process station, operator station and engineer station is realized through the system bus diginets (Industrial Ethernet). user
Different transmission media (RJ45 twisted pair, thin cable, thick cable or optical fiber cable and mixed media) and network topology can be selected for the system bus
Due to the adoption of tcp/ip protocol, the system can also realize ultra long distance communication with the help of public telephone network (dial-up mode) or satellite.
PLC and other subsystems communicate with industrial “system through Modbus protocol interface. The system also supports iec870-5 over control coordination
Discussion.
The flash EPROM inside PS provides more than 220 function modules (control algorithm subroutines), in addition to the base specified in IEC 61131 3 standard
In addition to this content, many powerful and strictly tested function blocks from practical engineering applications are also expanded. Any complex control
All schemes can be realized by the combination of these function blocks.
The function blocks provided by the system mainly fall into the following categories:
o
Analog quantity processing
o
Digital quantity processing
Loop adjustment
Logical sequence control
c
Logical operation
Monitoring function
Acquisition function
c
Arithmetic operation
c
Tcp/ip protocol communication interface
Modbus protocol communication interface
1ec870-5 protocol communication interface (telecontrol)
4.2 field controller PS
Industrial ial “field controller PS is a special process control station, which is embedded with a fieldbus communication interface for users to use
Fieldbus technology provides a very flexible choice. Each PS is allowed to insert 4 fieldbus interface cards (card types can be different),
Each card is connected to a fieldbus to collect process data and diagnostic information from the bus. The interface card is easy to replace and plug and play
(plug & play) and can be plugged in and out with power.
The field controller PS has the following features:
o
Flexible: it supports all international standard open fieldbus and can be mixed
4 high-speed fieldbuses can be connected at the same time (max. 12 MBD)
Simple project: only use the same tool CBF (control build f) software for configuration, debugging and diagnosis
mouth
Access to all information from the site, including equipment management information
Global database of Fieldbus equipment, control level and HMI (human-machine interface)
Module
