AJ71LP21 Design PLC peripheral hardware circuit MITSUBISHI AJ71LP21

Input and output points: 256 points.
Input / output data points: 256 points.
Program capacity: 6k.
Basic command processing speed (LD command) s:1.0.
Internal storage RAM memory capacity: 16k.
Optical data communication line function with power supply.
Input / output data control mode conversion AJ71LP21.
It is possible to enter the control of the output data as the followiing 3.
(1) input: direct mode, output: direct mode.
(2) input: I/O impression update mode, output: direct mode AJ71LP21.
(3) input: I/O impression update mode, output: I/O impression update mode.
User program storage capacity: it is a measure of how much the user application can store the number of indicators.
Usually in words or K words as units. 16 bit binary number is a word,
Every 1024 words are 1K words AJ71LP21. PLC to store instructions and data in words.
General logical operation instructions each account for 1 words. Timer / counter,
Shift instruction accounted for 2 words. Data operation instructions for 2~4.
Integral type: the PLC components are installed together or a few pieces of printed circuit board,
And together with the power supply installed in the casing to form a single overall called the host or the basic unit, small, ultra small PLC using this structure MITSUBISHI AJ71LP21.
Modular: PLC is the basic components of a separate module.
Medium and large PLC used this way MITSUBISHI AJ71LP21. Easy maintenance. Series Name: A956GOT.
Size: 6 inches.
Resolution: 320 * 240.
Display device: STN color display.
Display color: 8 color.
Power supply: DC24V.
Memory card: 3M.
The external model design model of creating the system function is mainly to consider the data structure, the overall structure and the process description of the software,
The interface design is usually only used as accessories, only on the user''s situation (including age, gender, mental status, education level, personality, ethnic background and etc MITSUBISHI AJ71LP21.) to understand, to design an effective user interface;
According to the user model of the future system of the end user (for short),
In the end, it is consistent with the system image (external characteristic) of the system after the system is realized,
Users can be satisfied with the system and be able to use it effectively;
When the user model is established, the information given by the system should be considered,
System mapping must accurately reflect the syntax and semantic information of the system.
In short, only to understand the user, to understand the task in order to design a good man-machine interface.
SI/QSI/H-PCF/ wide range H-PCF fiber optic cable.
Double loop.
PC inter network (management station / station) / remote I/O network (remote control station).
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.
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 AJ71LP21..
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.