Input points: 16 points.
Voltage: DC12/24V.
Current: 4/10mA.
Response time: 6ms/1ms (high speed mode).
8 points / a common end.
Negative utility.
20 point terminal station.
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 A2CCPUC24 Fundamentals Manual A2CCPUC24 Programming Manual A2CCPUC24
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 A2CCPUC24 Fundamentals Manual A2CCPUC24 Programming Manual.
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.
PLC selection with the development of PLC technology, more and more types of PLC products,
Function is becoming more and more perfect, and its application is more and more extensive A2CCPUC24 Fundamentals Manual A2CCPUC24 Programming Manual.
Different series of different models of PLC has different performance, applicable occasions also have different emphasis,
Price also has a greater difference. Therefore PLC selection,
Under the premise of meeting the control requirements,
Should consider the best performance to price ratio, a reasonable choice of PLC.
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.
Read only memory. Manufacturers use, content can not be changed, power does not disappear. RS-232 2 channel.
Transfer speed: 2 channels.
A total of 115.2kbps.
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 memmory function A2CCPUC24 Fundamentals Manual A2CCPUC24 Programming Manual.
System program memory and user memory.
System program memory for storing system program,
Including management procedures, monitoring procedures, as well as the user program tto do the compiler to compile the process of interpretation A2CCPUC24 Fundamentals Manual A2CCPUC24 Programming Manual.
Read only memory. Manufacturers use, content can not be changed, power does not disappear.