Input and output points: 2048 points.
Input / output data points: 2048 points.
Program capacity: 30K.
Basic command processing speed (LD command) s:1.0.
Optical data communication line.
Each scanning process. Focus on the input signal sampling. Focus on the output signal to refresh.
Input refresh process A1SJ72QLR25 Manual A1SJ72QLR25 Reference Manual . 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 A1SJ72QLR25
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 A1SJ72QLR25 Manual A1SJ72QLR25 Reference Manual .
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 application can store the number of indicators A1SJ72QLR25 Manual A1SJ72QLR25 Reference 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 logical operation instructions each account for 1 words. Timer / counter,
Shift instruction accounted for 2 words. Data operation instructions for 2~4. Master / local station.
AnCPU use.
According to the control requirements of the system, using the appropriate design method to design MITSUBISHI PLC program.
Procedures to meet the requirements of system control as the main line,
Write one by one to achieve the control function or the sub task of the program,
Gradually improve the functions specified by the system.
MITSUBISHI PLC initialization procedure. After MITSUBISHI PLC on power, tthe general need to do some of the initial operation,
In order to start making necessary preparations, to avoid the wrong operation of the system A1SJ72QLR25 Manual A1SJ72QLR25 Reference Manual .
The main contents of the initialization program aree: to some data area, counter and so on,
Data needed to restore some of the data area,
Set or reset some relays,
For some initial state display, etc A1SJ72QLR25 Manual A1SJ72QLR25 Reference Manual . . "