Input points: 16 points.
Voltage: DC5/12/24V.
Current: 5.5/3/6mA.
Response time: 3ms.
8 points / a common end.
Positive / negative sharing.
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 MITSUBISHI A6TBX70-E PDF datasheet A6TBX70-E
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 MITSUBISHI A6TBX70-E PDF datasheet.
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 MITSUBISHI A6TBX70-E PDF datasheet.
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. Special multi axis positioning controller for NSD servo system.
Program capacity: Max 60K step.
Input / output points: 1920 points.
Control AC motor required I/O points with PLC control AC motor,
Signal and feedback signal is used as the input signal of PLC,
The control of AC motor is accomplished by using the output signal of PLC to drive the contactor.
For example, the AC motor is controlled by a Y- delta starting with PLC,
Generally need to occupy 4 of the PLC input and 3 output points,
PLC control of a one-way operation of the cage type motor,
4 input points and 1 output points are occupied, and a reversible motor is controlled,
55 input points and 2 output points are needed to control a unidirectional operation of variable pole speed control motor,
5 input points and 2 output points are required to control a unidirectional operation of the rotor AC mottor,
3 input points and 4 output points are needed to control a reversible running winding rotor AC motor,
Requires 4 input points and 5 output points A6TBX70-E PDF catalog A6TBX70-E PDF catalog.