7DI140.70B&R
7DI140.70B&R
7DI140.70B&R
Rockwell 交流变频器节能（离心式水泵）解决方案
泵基本上可以分成两大类，容积式泵和叶片式泵（离心泵）。容积式泵是通过机械的方法改变工作室容积的大小来输送液体的。容积式泵具有恒转矩负载的特性，而离心泵是变转矩负载。离心泵通过浸入在液体中的叶轮旋转时产生的离心力来输送液体。这种动力使液体的压力增加，并沿着排出管流出。
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
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)
