SRAM+E2PROM memory card.
RAM capacity: 256KB.
E2PROM capacity: 256KB. Type of input: DC leakage.
Input points: 32 points.
Input voltage: DC12/24.
Input current: 3/7mA.
Output type: transistor drain type.
Output points: 32 points.
Common public end points: 32.
PLC is introduced by the relay control technology after the development of micro processing technology,
Can be easily and reliably used for switching control A1SJ71UC24-R2 A1SJ71UC24-R2
As the analog quantity can be converted into digital quantity, the number of digital quantity is just a number of switching value,
Therefore, after the conversion of analog, PLC can also be reliable for processing control.
Because the continuous production process often has the analog quantity, the analog quantity control is sometimes called process control A1SJ71UC24-R2.
Analog quantity is not electricity, and PLC can only handle digital quantity, quantity of electricity.
All to realize the conversion between them to have the sensor, the analog quantity into a number of power.
If this power is not standard, but also through the transmitter,
The non-standard power into a standard electrical signal, such as 1-5V, 4-20mA, 0-10V, etc A1SJ71UC24-R2. .
At the same time, there is also an analog input unit (A/D),
Transform these standard electrical signals into digital signals,
The analog output unit (D/A), in order to transform the digital quantity after PLC processing into analog quantity -- standard electric signal.
So the standard telecommunication number, the conversion between the number of operations to use a variety of computing.
This requires the resolution of the analog unit and the standard electrical signal. RS-232 1 channel.
RS-422/485 1 channel.
Transmission speed: 2 channels.
At the same time the use of 115.2kbps may.
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.
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.
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.
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 prrogram to do the compiler to compile the process of interpretation A1SJ71UC24-R2.
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) A1SJ71UC24-R2. User use.
Power cut off. Commonly used efficient lithium battery as a backup power supply, life is generally 3~5 years.