3C-2V/5C-2V coaxial cable between double loop PC (control station / common station) / remote I/O network (remote master station).
Q mode.
When the programmer input programinto the user program memory,
Then CPU according to the function of the system (the system program memory to explain the compiler),
Translate the user program into PLC internally recognized by the user to compile the program MITSUBISHI MR-J2M-CN1TBL2M.
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
MR-J2M-CN1TBL2M
And then combine the data and the program with CPU.
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 MITSUBISHI MR-J2M-CN1TBL2M.
Semiconductor circuit with memory function.
System program memory and user memory.
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 MITSUBISHI MR-J2M-CN1TBL2M.
Read only memory. Manufacturers use, content can not be changed, power does not disappear .
User memory: user program storage area and work data storage area.
Composed of random access memory (RAM). User use.
Power cut off. Commonly used efficient lithium battery as a backup power supply, life is generally 3~5 years. Reader writer 1 channel connection, AnSCPU/QnASCPU.
PLC is the use of " sequential scanning, and constantly circulating " way to work.
That is, in the operation of CPU, PLC according to the user according to the control requirements of the coexistence of the user in the memory of the program,
According to the instruction sequence number (or address number) for periodic cyclic scan, such as no jump instruction,
From the first instruction to the user program execution sequence one by one, until the end of the program,
And then return to the first command, start the next round of the new scan, in the process of each scan,
Also complete the sampling of the input signal and the output status of the refresh and other work.
PLC is the use of " sequential scanning, and constantly circulating " way to work.
That is, in the operation of CPU, PLC according to the user according to the control requirements of the coexistence of the user in the memory of the program,
According to the instruction sequennce number (or addreess number) for periodic cyclic scan, such as no jump instruction,
From the first instruction to the user program execution sequence one by one, until the end of the program,
And then return to the first command, start the next rrounnd of the new scan, in the process of each scan,
Also complete the sampling of the input signal and the output status of the refresh and other work MR-J2M-CN1TBL2M MR-J2M-CN1TBL2M.
MR-J2M-CN1TBL2M Operation manual/Instructions/Model selection sample download link:
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