Category: slave station.
Transfer speed: 125kbps/250kbps/500kbps/1Mbps.
Transmission line form: bus system.
Total distance: 125kbps:1000m/250kbps:800m/500kbps:480m/1Mbps:240m.
The maximum connection units: 32.
Total points: input + output <=2048 point.
MITSUBISHI PLC detection, fault diagnosis and display and other procedures A0J2-E32A.
These procedures are relatively independent, generally in the basic completion of the program design and then add A0J2-E32A
MITSUBISHI PLC protection and chain procedures.
Protection and chain is an indispensable part of the program, must be carefully considered.
It can avoid the control logic confusion caused by illegal operations. Multi axis positioning controller.
Coaxial data communication line function A0J2-E32A.
Program capacity: Max 60K step.
Input / output points: 1920 points.
PLC commonly used in memory are EPROM, EEPROM and with lithium battery powered RAM.
General micro and small PLC storage capacity is fixed, between 1~2KB.
How much memory is occupied by a user application is related to many factors,
Such as I/O points, control requirements, computing processing, program structure, etc A0J2-E32A. .
So it can only be roughly estimated before the program is designed. Input points: 16 points.
Voltage: DC48V.
Current: 4mA.
Response time: 10ms.
8 points / a common end.
Positive / negative sharing.
20 point terminal station.
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.
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.
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.
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 off the component image register are changed with the change of the execution of the program A0J2-E32A.
The length of the scan cycle is determined by the three.
CPU the speed of executing instructions.
Time of instruction.
Instruction count.
Due to thhe adoption of centralized sampling A0J2-E32A.
Centralized output mode.
There exist input / output hysteresis phenomena, i.e., the input / output response delay.