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MITSUBISHI A1SJ72QLP25 Hardware Manual A1SJ72QLP25 User's Manual

Brand: MITSUBISHI
Product model: A1SJ72QLP25
Name: MELSECNET/10 Network Module
Sort: User's Manual (Hardware)
File language: English
File size: 0.29MB
JEMANET (OPCN-1) interface unit from the station.
The response time of PLC is the interval between the time of the change of the external output signal of the PLC and the time of the change of the external output signal which is controlled by it,
Lag time, this is the time constant of the input circuit,
The time constant of the output circuit, the arrangement of the user statement and the use of the instruction,
The cycle scan mode of PLC and the way of PLC to refresh the I/O and so on A1SJ72QLP25 Hardware Manual A1SJ72QLP25 User's Manual A1SJ72QLP25
This phenomenon is called the I/O delay time effect.
Input status and input information input from the input interface,
CPU will be stored in the working data memory or in the input image register.
And then combine the data and the program with CPU A1SJ72QLP25 Hardware Manual A1SJ72QLP25 User's Manual.
The result is stored in the output image register or the working data memory,
And then output to the output interface, control the external drive. Input and output points: 1024 points.
Input / output data points: 1024 points.
Program capacity: 14K.
Basic command processing speed (LD command) s:0.20.
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 A1SJ72QLP25 Hardware Manual A1SJ72QLP25 User's Manual.
Modular: PLC is the basic components of a separate module.
Medium and large PLC used this way. Easy maintenance.
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.
User program storage capacity: it is a measure of how much the user applicatioon can store the number of indicators A1SJ72QLP25 Hardware Manual A1SJ72QLP25 User's Manual.
Usually in words or K words as units. 16 bit binary number is a word,
Every 1024 words are 1K words. PLC to store instructions and data in words.
General llogical operation instructions each account for 1 words A1SJ72QLP25 Hardware Manual A1SJ72QLP25 User's Manual. Timer / counter,
Shift instruction accounted for 2 words. Data operation instructions for 2~4.
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