Series Name: A985GOT.
Size: 12 inches.
Resolution: 800 * 600.
Display equipment: high brightness TFT color display.
Display color: 256 color.
Power supply: AC100-240V.
Man machine interface (Machine Interaction Human, referred to as HMI), also known as the user interface or user interface,
Is a communication interface between human and computer,
Is an important part of the computer system A3NCPUP21 Hardware Manual A3NCPUP21 User's Manual A3NCPUP21
Is a medium for interaction and information exchange between the system and the user,
It realizes the transformation between the internal form of information and the acceptable form of human being.
Where there is a man-machine interface in the field of human computer information exchange. Input and output points: 1024 points A3NCPUP21 Hardware Manual A3NCPUP21 User's Manual.
Input / output data points: 1024 points.
Program capacity: 14K.
Basic command processing speed (LD command) s:0.20.
Integral type: the PLC components are installed together or a few pieces of printed circuit board,
And together with the power supply installed in the casing to form a single overall called the host or the basic unit, small, ultra small PLC using this structure A3NCPUP21 Hardware Manual A3NCPUP21 User's Manual.
Modular: PLC is the basic components of a separate module.
Medium and large PLC used this way. Easy maintenance.
Each scanning process. Focus on the input signal sampling. Focus on the output signal to refresh.
Input refresh process. 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.
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.
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 appliccation can store the number of indicators A3NCPUP21 Hardware Manual A3NCPUP21 User's 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 llogical operation instructions each account for 1 words A3NCPUP21 Hardware Manual A3NCPUP21 User's Manual. Timer / counter,
Shift instruction accounted for 2 words. Data operation instructions for 2~4.