Series Name: F920GOT with buttons, with a series of effective functional modules.
System screen display language: japanese.
Display: 2.6 inches.
Display color: monochrome (blue / white).
Display device: LCD STN.
Resolution: 128 * 64.
Installation type: panel mounting.
The built-in communication port: RS-422 (1ch) /RS-232C (1ch).
Power supply voltage: DC24V.
The touch screen is the interface between people and machines in the field of information exchange and function contact or interact with each other,
Information exchange, functional contact or mutual influence, the hard contact and soft touch of a person and machine,
This interface includes not only the direct contact point, including long-distance information transmission and control function space LD77MS2
The man-machine interface is the central link in the man-machine system,
Mainly from the safety engineering branch of the safety ergonomics to study and put forward the basis for the solution,
And over safety engineering equipment engineering,
Safety management engineering and safety systems engineering to study the specific solutions and measures of the safety of human computer science. Input type: DC input, positive common end.
Input points: 4 points.
Enter the response time: 1.5ms the following.
Rated input voltage / current: DC24V/7mA.
Output form: transistor output, leakage type.
Output points: 4 points.
OFF leakage current: 0.1mA.
Output protection function: No.
Rated load voltage / current: DC24V/0.5A.
External connection: 3 line /2 line type.
According to the external connection mode and the external equipment input and output specifications,
Choose from a rich product lineup.
Finger protection through the upper part of the terminal,
The human body will not be exposed to live parts,
Therefore, the terminal station type remote I/O module can be directly mounted to the machine tool. Input points: 32 points.
Voltage: DC12/24V.
Current: 3/7mA.
Response time: 10ms.
16 points / a common end.
Positive pole sharing.
36 point terminal station.
Each scanning process. Focus on the input signal sampling. Focus on the output signal to refresh.
Input refresh process. When the input port is closed,
Program in the implementation phase, the input end of a new state, the new state can not be read.
Only when the program is scanned, the new state is read.
A scan cycle is divided into the input sample, the program execution, the output refresh.
The contents of the component image register are changed with the change of the execution of the program.
The length of the scan cycle is determined by the three.
CPU the speed of executing instructions.
Time of instruction.
Instruction count.
Due to the adoption of centralized sampling.
Centralized output mode.
There exist input / output hysteresis phenomena, i.e., the input / output response delay.
PLC selection with the development of PLC technology, more and more types of PLC products,
Function is becoming more and more perfect, and its application is more and more extensive.
Different series of different models of PLC has different performance, applicable occasions also have different emphasis,
Price also has a greater difference. Therefore PLC selection,
Under the premise of meeting the control requirements,
Should consider the best performance to price ratio, a reasonable choice of PLC.
System program memory for storing system program,
Including management procedures, monitoring procedures, as well as the user program to do the compiler to compile the process of interpretation.
Read only memory. Manufacturers use, content can not be changed, power does not disappear.
LD77MS2 Operation manual/Instructions/Model selection sample download link: /searchDownload.html?Search=LD77MS2&select=5