In order to control the PID does not need to specify a special command.
The automatic setting of PID number is possible.
The length of time required to execute the instruction, the length of the user''s program, the type of instruction, and the speed of the CPU execution are very significant,
The execution time is accounted for the vast majority of.
The response time of PLC is the interval between the time of the change of the external output signal of the PLC and the time of the change of the external output signal which is controlled by it,
The time constant of the output circuit, the arrangement of the user statement and the use of the instruction,
The cycle scan mode of PLC and the way of PLC to refresh the I/O and so on.
This phenomenon is called the I/O delay time effect.
The use of A1STA32 can significantly reduce the wiring time I/O 32 type of connector assembly,
Neither welding, without thread stripping,
It only needs to cut a wire and insert the wire into the terminal hole of the A1STA32,
A1STA32 in the blade will cut wire insulation surface,
To make contact and hold a good conductor A1S64TCTRT. Input and output points: 1024 points.
Input / output data points: 8192 points
A1S64TCTRT
Program capacity: 60k.
Basic command processing speed (LD command) S:0.2.
PLC in the program execution stage: according to the order of the user program order to store the order of each instruction,
After the corresponding operation and processing, the result is written to the output status register,
The contents of the output status register are changed with the execution of the program A1S64TCTRT.
Output refresh phase: when all instructions are executed,
The output status register is sent to the output latch in the output refresh stage,
And through a certain way (relay, transistor or transistor) output, drive the corresponding output equipment. Input voltage: AC100-240V.
Rated output: DC5V, 3A and DC24V, 0 A1S64TCTRT. 6A.
The power supply module is connected with the external power supply, and the DC5V is provided with the AnS programmable controller,
They are inserted in the slot of the special power supply component on the base board,
The output of the DC5V is powered by the power supply on the substrate to the component.
The input voltage of the component is related to the selected model.
A1S61PN/62PN has Deng generation A1S61P/A1S62P, A1S61PEU/A1S62PEU. Enter 8 points.
7mA DC24V.
Response time: 12ms.
8 positive, 1 public to reduce the public in common use.
Output 8 points.
DC24V/AC240V, 2A/1 point, 8A/1 common.
Response time: 12ms.
8 point 1 public 20 point terminal.
PLC is introduced by the relay control technology after the development of micro processing technology,
Can be easily and reliably used for switching control.
As the analog quantity can be converted into digital quantity, the number of digital quantity is just a number of switching value,
Therefore, after the conversion of analog, PLC can also be reliable for processing control.
Because the continuous production process often has the analog quantity, the analog quantity control is sometimes called process control.
Analog quantity is not electricity, and PLC can only handle digital quantity, quantity of electricity.
All to realize the conversion between them to have the sensor, the analog quantity into a number of power.
If this power is not standard, but also through the transmitter,
The non-standard power into a standard electrical signal, such as 1-5V, 4-20mA, 0-10V, etc..
At the same time, there is also an analog input unit (A/D),
Transform these standard ellectrical signals into digital signals,
The analog output unit (D/A), in order to transform the digital quantity after PLC processing into analog quantity -- standard electric signal A1S64TCTRT.
So the standard telecommunication number, the conversiion between the number of operations to use a variety of computing A1S64TCTRT.
This requires the resolution of the analog unit and the standard electrical signal.