32: terminal line adapter 0.75mm2 (AGW18).CPU-A8UPU/A8PUJ connection.RS-232:1, RS-422/485:1.
Transmission speed: 0.3 ~ 19.2kpbs.
Computer connection function.
Design PLC peripheral hardware circuit.
Draw the electrical wiring diagram of the other parts of the system,
Including the main circuit and the control circuit does not enter the PLC, etc A73CPUR21-S1 Fundamentals Manual A73CPUR21-S1 Programming Manual A73CPUR21-S1 .
The electrical schematic diagram of the system composed of I/O PLC connection diagram and PLC peripheral electrical circuit diagram.
So far the system''s hardware electrical circuit has been determined.
Printer / peripheral device connection, BASIC language function.
How to choose MITSUBISHI PLC.
MITSUBISHI PLC options include the choice of MITSUBISHI PLC models, capacity, I/O module, power, etc A73CPUR21-S1 Fundamentals Manual A73CPUR21-S1 Programming Manual. .
MITSUBISHI PLC distribution I/O points and design MITSUBISHI PLC peripheral hardware circuit
Draw the I/O point of the PLC and the input / output device connection diagram or the corresponding table,
This part also can be carried out in second steps. Cable for extended use in multiplexing unit.Used for a common positive input module (3 line type) A73CPUR21-S1 Fundamentals Manual A73CPUR21-S1 Programming Manual. RS-232 2 channel.
Transfer speed: 2 channels.
A total of 115.2kbps.
Input status and input information input from the input interface,
CPU will be stored in the working data memory or in the input image register.
And then combine the data and the program with CPU.
The result is stored in the output image register or the working data memory,
And then output to the output interface, control the external drive.
Semiconductor circuit with memory function.
System program memory and user memory.
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. JEMANET (OPCN-1) interface unit master station.
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,
Lag time, this is the time constant of the input circuit,
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.
Input statuus and input information input from the input interface,
CPU will be stored in the working data memory or in the input image register A73CPUR21-S1 Fundamentals Manual A73CPUR21-S1 Programming Manual.
And then combine the data and the program with CCPU A73CPUR21-S1 Fundamentals Manual A73CPUR21-S1 Programming Manual.
The result is stored in the output image register or the working data memory,
And then output to the output interface, control the external drive.