According to the control requirements of the system, using the appropriate design method to design MITSUBISHI PLC program.
Procedures to meet the requirements of system control as the main line,
Write one by one to achieve the control function or the sub task of the program,
Gradually improve the functions specified by the system AJ65SBTC1-32DT1 PDF datasheet.
MITSUBISHI PLC initialization procedure AJ65SBTC1-32DT1 After MITSUBISHI PLC on power, the general need to do some of the initial operation,
In order to start making necessary preparations, to avoid the wrong operation of the system.
The main contents of the initialization program are: to some data area, counter and so on,
Data needed to restore some of the data area,
Set or reset some relays,
For some initial state display, etc AJ65SBTC1-32DT1 PDF datasheet. . "16 channels.
Thermocouple input.
38 point terminal station.
How to determine the input / output device of MITSUBISHI plc.
According to the control requirements of the system,
All input devices and output devices required for the determination of the system,
To determine the input / output device related to the MITSUBISHI PLC,
To determine the I/O PLC points AJ65SBTC1-32DT1 PDF datasheet.
Detailed analysis of the process and work characteristics of the controlled object,
To understand the coordination between the controlled object machine, electricity and liquid,
The control requirements of the controlled object for MITSUBISHI PLC control system are put forward,
Determine the control program, to develop a design task book. 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 electrical 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 AJ65SBTC1-32DT1 PDF catalog.
So the standard telecommunication number, the conversiion between the number of operations to use a variety of computing AJ65SBTC1-32DT1 PDF catalog.
This requires the resolution of the analog unit and the standard electrical signal.