Category: Master 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 AD71S1 Manual AD71S1 User's Manual.
These procedures are relatively independent, generally in the basic completion of the program design and then add AD71S1
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. Input voltage range: AC100-120V/200-240V.
Output voltage: DC-15/15V AD71S1 Manual AD71S1 User's Manual.
Output current: A616DAV 0.7A/1.2A, for A616DAI.
I/O slot installation.
Is the analog output unit (A616DAV, A616DAI) dedicated power supply.
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.
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 AD71S1 Manual AD71S1 User's Manual.
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%.
The following describes the centralized control system I/O points of the estimate. 32 point connector for welding (40 pin connector).5 slots.
No need to install power.
For QnA/A series.
Switch volume control is designed to,
According to the current input combination of the switch quantity and the history of the input sequence,
So that PLC generates the corresponding switching output,
In order to make the system work in a certain order.
So, sometimes also known as the order control.
And sequential control is divided into manual, semi-automatic or automatic.
And the control principle is decentralized, centralized and hybrid control three.
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 iinput / output hysteresis phenomena, i AD71S1 Manual AD71S1 User's Manual. e., the input / output response delay.
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 AD71S1 Manual AD71S1 User's Manual.
Read only memory. Manufacturers use, content can not be changed, power does not disappear.