10BASE5/10BASE2
Control layer /MELSECNET/10 (H) is the middle layer of the whole network system,
Control network which is convenient and high speed processing data transmission between PLC, CNC and other control equipment.
As MELSEC control network MELSECNET/10,
With its good real-time performance, simple network settings, no procedures of the network data sharing concept,
As well as the redundant circuit and so on, has obtained the very high market appraisal,
The number of devices to reach the highest in japan,
In the world is also one of the few A1SJ71E71N-B5 Hardware Hardware A1SJ71E71N-B5 Hardware A1SJ71E71N-B5
And MELSECNET/H not only inherited the excellent characteristics of MELSECNET/10,
Also makes the network real-time better, more data capacity,
Further adapt to the needs of the market A1SJ71E71N-B5 Hardware Hardware A1SJ71E71N-B5 Hardware. Input type: DC input, positive public end / negative public end.
Input points: 8 points.
Enter the response time: 10ms the following.
Rated input voltage / current: DC24V/7mA.
Output form: relay output.
Output points: 8 points.
OFF leakage current: -.
Output protection function: No.
Rated load voltage / current: DC12V/AC240V/2A.
External connection: 2 line /2 line type A1SJ71E71N-B5 Hardware Hardware A1SJ71E71N-B5 Hardware.
Type of input and output terminal.
Using 2 pieces of structure of the terminal units, maintenance can be maintained in the same line under the condition of the replacement module. Output type: transistor output, drain type.
Output points: 16 points.
OFF leakage current: 0.25mA.
Output protection function.
Rated load voltage / current: DC12V/DC24V/0.5A.
External connection: 1 wire.
According to the external connection mode and the external equipment input and output specifications,
Choose from a rich product lineup.
Finger protection through the upper part of the terminal,
The human body will not be exposed to live parts,
Therefore, the terminal station type remote I/O module can be directly mounted to the machine tool. Input points: 32 points.
Voltage: DC24V.
Current: 7mA (external switch ON) /1.5mA (external switch OFF).
Response time: 10ms.
32 points / a common end.
Positive / negative sharing.
38 point terminal station.
Disconnection detection function.
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 of the component image register are changed witth the change of the execution of the program A1SJ71E71N-B5 Hardware Hardware A1SJ71E71N-B5 Hardware.
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 A1SJ71E71N-B5 Hardware Hardware A1SJ71E71N-B5 Hardware.
Centralized output mode.
There exist input / output hysteresis phenomena, i.e., the input / output response delay.