工艺流程画面是典型的自由图形显示。
在自由图形中,当前的过程数据或过程状态可以数字或模拟形式进行显示(如棒图、动态填充或
趋势窗口) .画面显示中的图形符号可根据过程状态进行置换、闪烁、变色以及位置变化,即进行动
态显示。所选择的过程变量可通过流程画面中的面板或通过标准分组画面进行显示操作。
如果组态了画面调用热区或调用按钮,则可在自由画面中设置指定的画面调用体系,它确定彼此
之间的调用关系,便于用户监视操作。另外位于屏幕顶部稍偏下处的显示菜单提供了–个标准的画面
调用体系。随时可通过该菜单调用各种类型显示画面,在相应画面中可显示所需过程点的信息.
态显示。所选择的过程变量可通过流程画面中的面板或通过标准分组画面进行显示操作。
如果组态了画面调用热区或调用按钮,则可在自由画面中设置指定的画面调用体系,它确定彼此
之间的调用关系,便于用户监视操作。另外位于屏幕顶部稍偏下处的显示菜单提供了–个标准的画面
调用体系。随时可通过该菜单调用各种类型显示画面,在相应画面中可显示所需过程点的信息.
5SHY4045L0004
Field controller supports Profibus, FF, ModBus, Can, etc.
International standard fieldbus, Profibus is the most widely used open fieldbus international standard in the world, divided into FMS, DP and PA
Level 3, DP communication rate can be as high as 12Mb. Profibus is used to connect intelligent devices such as distributed I/0 stations and field bus instruments.
Communication between the process station, operator station and engineering station takes place via the system bus DigiNetS (Industrial Ethernet). user
Different transmission media (RJ45 twisted pair, thin, thick or fiber optic cables and mixed media) and network topology can be selected for the system bus.
Simple layout, due to the use of TCP/IP protocol, the system can also use the public telephone network (dial-up mode) or satellite to achieve ultra-long-distance communication.
Subsystems such as PLC communicate with the Industrial” system through the ModBus protocol interface. The system also supports IEC870-5 over-control protocol.
discussion.
The Flash EPROM inside the PS provides more than 220 functional modules (control algorithm subroutines), in addition to the basic ones specified in the IEC 61131 3 standard
In addition to this content, many powerful and rigorously tested function blocks from actual engineering applications have been expanded. any complex control
IS230TNSVH3A
The scheme can be realized by the combination of these function blocks.
The function blocks provided by the system mainly include the following categories:
o
Analog processing
o
digital processing
loop regulation
Logical sequence control
c
logic operation
Monitoring function
Collection function.
c
arithmetic operations
c
TCP/IP protocol communication interface
Modbus protocol communication interface
1EC870-5 protocol communication interface (Telecontrol)
4.2 Field Controller PS
Industrial” field controller PS is a special process control station, which is embedded with field bus communication interface for users to use
Fieldbus technology offers very flexible options. Each PS allows to insert 4 fieldbus interface
总貌显示
将整个装置的过程信息以压缩的方式在一幅总貌图中加以显示。