MITSUBISHI A1SJ71LR21 Reference Manual PDF

CPU-A8UPU/A8PUJ connection.Reader writer 1 channel connection, AnSCPU/QnASCPU.
PLC is the use of " sequential scanning, and constantly circulating " way to work A1SJ71LR21 PDF.
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 A1SJ71LR21 PDF A1SJ71LR21
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 A1SJ71LR21 PDF MITSUBISHI Reference Manual. I/O slots: 5 slots.
Outline dimension: 325*130.
CPU basic board can be plugged into 1 power modules,
1 CPU components and a maximum of 2, 3, 5, or 8 single slot size special function components and I/O components are respectively inserted and arranged MITSUBISHI Reference Manual.
Exppansion ports are arranged on both sides of the base plate,
For connecting the expansion board for A1SJ71LR21 Manual.
Up to 3 extension substrates MITSUBISHI Reference Manual. Input voltage range: AC100 ~ 120V.
Output voltage: DC24V.
Output current: 0.6A.
Relay output interface circuit of PLC
Working process: when the internal circuit output digital signal 1,
There is a current flowing through, the relay coil has a current, and then the normally open contact is closed,
Provide load current and voltage.
When the internal circuit outputs a digital signal 0, there is no current flowing through it,
The relay coil does not have a current, and the normally open contact is broken off,
A current or voltage that is disconnected from the load.
It is through the output interface circuit to the internal digital circuit into a signal to make the load action or not action.
I/O points is an important indicator of PLC.
Reasonable selection of I/O points can not only satisfy the control requirements of the system,
And the total investment of the system is the lowest.
The input and output points and types of PLC should be determined accorrding to the analog quantity and switch quantity of the controlled object,
Generally an input / output element to take up an input / output point A1SJ71LR21 Reference Manual.
Taking into account the future adjustment and expansion,
In general should be estimaated on the total number of points plus the amount of spare 20%~30% A1SJ71LR21 Manual.
The following describes the centralized control system I/O points of the estimate.