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A1SS91 MITSUBISHI A1SS91 The popularization and application of PLC programming has been developed rapidly in our country, I/O bus monitoring module

Brand: MITSUBISHI
Name: I/O bus monitoring module
Model: A1SS91
A1SS91 is used to insert a fixed control program in front of the user program to monitor the specific Y output.
Monitoring is carried out only when the CPU is in a state of running or stopping, and the monitoring failure is monitored in the suspended state.
When using this module, you can output from the I/O bus error contact or output from the running contact or the general contact output,
DC5V check can also be performed.
The popularization and application of PLC programming has been developed rapidly in our country,
It has been widely used in all kinds of mechanical equipment and production process of electrical control devices,
All walks of life have emerged a large number of application of PLC transformation of the results of the equipment.
Understand the working principle of PLC, have the ability to design, debug and maintain the PLC control system,
Has become the basic requirements of modern industry for electrical technicians and engineering students.
The instruction list programming language is a programming language similar to assembly language mnemonic,
As well as assembly language by the operation code and the number of operations.
In the case of the computer for the PLC handheld programmer compile user program.
At the same time, the programming language of the instruction list corresponds to the ladder diagram programming language,
In PLC programming software can be converted to each other. Figure 3 is the instruction sheet corresponding to the ladder diagram of figure 2PLC.
The characteristics of instruction table programming language is used to represent mnemonic operation function,
Easy to remember, easy to grasp;
In the handheld programmer on the keyboard using the mnemonic representation, easy to operate, can be programmed in computer;
There is a one-to-one correspondence between the ladder diagram and the ladder diagram. Its characteristics are basically consistent with the ladder diagram language.

I/O control method: refresh mode or direct mode.
User program storage capacity: 30K step.
I/O points: 1024 points.
Memory capacity: bytes 192K.
ANSCPU has been updated to ANSHCPU, and it has the following advantages.
16 bit dedicated microprocessor.
Large capacity battery backup memory RAM.
Extended I/O control capability MITSUBISHI A1SS91.
Dedicated CC-Link instruction.
Capacity for extended comment storage A1SS91
PLC programming is a digital computing operation of the electronic system,
Designed for applications in industrial environments.
It uses programmable memory,
An instruction used to perform logical operations, sequence control, timing, counting and arithmetic operations in its internal storage,
And through the digital, analog input and output, control of various types of machinery or production process MITSUBISHI A1SS91.
Programmable controller and related equipment,
Should be easy to make the industrial control system to form a whole, easy to expand the principle design of its functions. JEMANET (OPCN-1) interface unit from the 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 MITSUBISHI A1SS91 MITSUBISHI I/O bus monitoring module.
This phenomenon is called the I/O delay time effect MITSUBISHI I/O bus monitoring module.
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 MITSUBISHI I/O bus monitoring module. I/O slots: 2 slots.
Can you install the power module.
Outline dimension: 155*130.
There are two types of extended floor,
A power module can be inserted, and the other one is not.
The choiice of any type of substrate depends on the total DC5V current consumption and the power supply on the CPU main substrate A1SS91.
If the total demand is less than the power output, no additional power supply,
Then you can choose a more ecconomical expansion board MITSUBISHI A1SS91.
Both ends of the main base plate of the CPU have an expansion interface, and can be used for extending the cable connection.


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