Series Name: A951GOT.
Size: 6 inches.
Resolution: 320 * 240.
Display equipment: high brightness TFT color display.
Display color: 256 color.
Power supply: DC24V.
Built in BUS Q communication interface.
Memory card: 1M.
China is the world''s biggest market for human machine interface,
But it is not the highest sales market in the world,
This shows that the low-end user interface in China has a large share of AJ71VP21 datasheet PDF catalog AJ71VP21 PDF datasheet AJ71VP21
In recent years, the rapid development of national brands, to take a low price and other strategies, is a massive attack on the low end of the market,
Has occupied the dominant position in the low-end market, has won the recognition of the majority of users.
International brands are also gradually developing its economic products, in order to seize the share of the low-end market AJ71VP21 datasheet PDF catalog AJ71VP21 PDF datasheet.
Therefore, in the low-end market steady,
The overall performance of the domestic human machine interface manufacturers showing a rapid growth of the state. 8 slots.
Power supply unit.
QnAS series unit installation.
High speed access.
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 AJ71VP21 datasheet PDF catalog AJ71VP21 PDF datasheet.
The input and output points and types of PLC should be determined according to the analog quantity and switch quantity of the controlled object,
Generally an input / output element to take up an input / output point.
Taking into account the future adjustment and expansion,
In general should be estimated on the total number of points plus the amount of spare 20%~30%.
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.
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 ccircuit 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 discoonnected from the load AJ71VP21 datasheet PDF catalog AJ71VP21 PDF datasheet AJ71VP21 datasheet PDF catalog AJ71VP21 PDF datasheet.
It is through the output interface circuit to the internal digital circuit into a signal to make the load action or not action.