AJ71ID1-R4 MITSUBISHI PLC protection and chain procedures MITSUBISHI AJ71ID1-R4

Input and output points: 480 points.
Program capacity: 7K step.
Basic command processing speed: 4.4 ~ 5.6us.
Power supply: input DC5V output 2A DC24V/.
Modular: PLC is the basic components of a separate module.
Medium and large PLC used this way. Easy maintenance.
User program storage capacity: it is a measure of how much the user application can store the number of indicators AJ71ID1-R4.
Usually in words or K words as units. 16 bit binary number is a word,
Every 1024 words are 1K words AJ71ID1-R4. PLC to store instructions and data in words.
General logical operation instructions each account for 1 words. Timer / counter,
Shift instruction accounted for 2 words. Data operation instructions for 2~4.
Relay output interface circuit of PLC
Working process: when the internal circuit output digital signal 1,
There is a current flowing through, the relay coil has a current, and then the normally open contact is closed,
Provide load current and voltage AJ71ID1-R4.
When the internal circuit outputs a digital signal 0, there is no current flowing through it,
The relay coil does not have a current, and the normally open contact is broken off,
A current or voltage that is disconnected from the load MITSUBISHI AJ71ID1-R4.
It is through the output interface circuit to the internal digital circuit into a signal to make the load action or not action. For common cathode input module and drain type output module (standard type) MITSUBISHI AJ71ID1-R4.
Bus connection.
Program 1 channel connection.
MITSUBISHI PLC detection, fault diagnosis and display and other procedures.
These procedures are relatively independent, generally in the basic completion of the program design and then add MITSUBISHI AJ71ID1-R4.
MITSUBISHI PLC protection and chain procedures.
Protection and chain is an indispensable part of the program, must be carefully considered.
It can avoid the control logic confusion caused by illegal operations. DC input points: 4 points.
Input voltage and current: 7mA, DC24V.
Input response time: 10ms.
4 point /1 a public side.
Positive / negative sharing.
Output points: 4 points.
Output voltage and current: DC24V/AC240V, 2A/1 point, 8A/1 common end.
Output response time: 12ms.
4 point /1 a public side.
Output form: relay.
24 point terminal station.
MITSUBISHI PLC protection and chain procedures.
Protection and chain is an indispensable part of the program, must be carefully considered.
It can avoid the control logic confusion caused by illegal operations.
MITSUBISHI PLC initialization procedure. 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..
MITSUBISHI PLC program simulation debugging
The basic idea of program simulation debugging is,
In order to facilitate the form of simulation to generate the actual statee of the scene,
Create the necessary environmental conditions for the operation of the program AJ71ID1-R4.
Depending on the way the field signals are generated,
The simulation debugging has two forms of hardware simulation and software simulation.