Interface: RS232C.
Transmission distance: 15 meters.
A1SJ71UC24-R2/R4/PR computer communication components can communicate with PLC, such as computers and other external intelligent devices, and the components are as follows:
Full / half duplex transmission.
4 special communication protocols.
No protocol and bidirectional mode.
Protocol selection switch function.
The optional baud rate, the highest 19.2K.
Since the echo diagnostic test.
Up to controlled I/O points: 8 point I/O combination module, up to 128 points.
Use any I/O module, up to 64 points.
Flexible system configuration; each remote I/O component is controlled by the I/O point to remain sufficiently low,
So in the installation of control equipment where only the I/O point is not wasted MITSUBISHI A1SJ71UC24-R2.
At the same time, it is not required to have the terminal resistance and the T - type branch to obtain the maximum flexibility
A1SJ71UC24-R2
Structured text language is a programming language that describes a program with a structured description of the text.
It is a programming language similar to a high level language. In large and medium
Structured text is often used to describe the relationship between the various variables in the control system based on the PLC system MITSUBISHI A1SJ71UC24-R2.
Mainly used for other programming languages more difficult to achieve the user program.
Functional block diagram language is a kind of PLC programming language, which is similar to digital logic circuit.
The function module is used to represent the function of the module,
Different function modules have different functions MITSUBISHI A1SJ71UC24-R2.
Functional module figure programming language features: functional block diagram programming language is characterized by a functional module for the unit,
Analysis and understanding of the control scheme is simple and easy: function module is to use graphical form of expression,
Intuitive, for a digital logic circuit based on the design of the staff is very easy to master the programming;
Control system with complex scale and complex control logic,
Because the function module diagram can clearly express the function relation, the programming debugging time is greatly reduced. A1SD51S is an intelligent communication module used in ANS series,
Can use the AD51H-BASIC language to make online or offline programming on the universal terminal or computer,
Multitasking can also be performed with up to two programs at high speed.
PLC is the use of " sequential scanning, and constantly circulating " way to work.
That is, in the operation of CPU, PLC according to the user according to the control requirements of the coexistence of the user in the memory of the program,
According to the instruction sequence number (or address number) for periodic cyclic scan, such as no jump instruction,
From the first instruction to the user program execution sequence one by one, until the end of the program,
And then return to the first command, start the next round of the new scan, in the process of each scan,
Also complete the sampling of the input signal and the output status of the refresh and other work.
PLC is the use of " sequential scanning, and constantly circulating " way to work.
That is, in the operation of CPU, PLC according to the user according to the control requirements of the coexistence of the user in the memory of the program,
According to the instruction sequence number (orr address number) for periodic cyclic scan, such as no jump instruction,
From the first instruction to the user program execution sequence one by one, until the end of the program,
And then return to the first command, start the next rround of the new scan, in the process of each scan,
Also complete the sampling of the input signal and the output status of the refresh and other work A1SJ71UC24-R2 A1SJ71UC24-R2.