IC693CPU374 GE
IC693CPU374 GE
IC693CPU374 GE
My功能是指可对变频器的输入/输出端子信号进行编程的附加功能。以往，根据控制要求的 情况，用户需要配合使用外部继电器组或PLC（可编程逻辑控制器）才可以实现的一部分功能，现在已集成到变频器内部，这就是My功能。 借助此附加功能，可以在系统集成时，节省外围设备所占空间，降低设备成本。 My功能分以下3类。
1）逻辑输入/输出My功能：能实现简单的逻辑序列功能。
2）模拟信号输入My功能：根据模拟信号输入来调整参数的功能。
3）模拟信号输出My功能：监控功能的最大/最小值映射到模拟信号输出的功能。
rocess 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
