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AJ71LP21 PDF catalog MITSUBISHI SI/QSI fiber optic cable module AJ71LP21 datasheet PDF datasheet
Product model: AJ71LP21
Name: SI/QSI fiber optic cable module
Brand: MITSUBISHI
Sort: PDF datasheet
File language: English
RS-232:1, RS-422/485:1.
Transmission speed: 0.3 ~ 19.2kpbs.
Computer connection function.
Printer / peripheral device connection, BASIC language function.
The electrical schematic diagram of the system composed of I/O PLC connection diagram and PLC peripheral electrical circuit diagram.
So far the system''s hardware electrical circuit has been determined MITSUBISHI SI/QSI fiber optic cable module PDF datasheet AJ71LP21
How to choose MITSUBISHI PLC.
MITSUBISHI PLC options include the choice of MITSUBISHI PLC models, capacity, I/O module, power, etc..
MITSUBISHI PLC distribution I/O points and design MITSUBISHI PLC peripheral hardware circuit
Draw the I/O point of the PLC and the input / output device connection diagram or the corresponding table,
This part also can be carried out in second steps MITSUBISHI SI/QSI fiber optic cable module PDF datasheet.
Design PLC peripheral hardware circuit.
Draw the electrical wiring diagram of the other parts of the system,
Including the main circuit and the control circuit does not enter the PLC, etc.. Input points: 32 points.
Voltage: DC24V.
Current: 7mA (external switch ON) /1.5mA (external switch OFF).
Response time: 10ms.
32 points / a common end.
Positive / negative sharing MITSUBISHI SI/QSI fiber optic cable module PDF datasheet.
38 point terminal station.
Disconnection detection function.
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 AJ71LP21 PDF datasheet.
Read only memory. Manufacturers use, content can not be changed, power does not disappear AJ71LP21 PDF datasheet.
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 AJ71LP21 PDF datasheet. Therefore PLC selection,
Under the premise of meeting the control requirements,
Should consider the best performance to price ratio, a reasonable choice of PLC.
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 tthe change of the execution of the program AJ71LP21 PDF catalog.
The length of the scan cycle is determined by the three.
CPU the speed of executing instructions.
Time of instruction.
Instruction count.
Due to thhe adoption of centralized sampling MITSUBISHI SI/QSI fiber optic cable module PDF datasheet.
Centralized output mode.
There exist input / output hysteresis phenomena, i.e., the input / output response delay.
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