Cable length: 3 meters
Extending cable to connect CPU main substrate and extended substrate,
According to the model can provide different cable length,
If you need to connect the AnN type expansion substrate is required,
Selection of A1SC05NB (A1SC07NB) cable. There are many A6TB models to different types of matching with the I/O module A3NCPUR21 Hardware Manual A3NCPUR21 User's Manual.
The cable can be connected to the I/O module of 32 points or 64 points by using the terminal row of the wire in advance A3NCPUR21
These cables have a variety of lengths to be selected, so that
Using the module wiring and terminal is not only connected with the connector. Input and output points: 480 points.
Program capacity: 7K step.
Basic command processing speed: 4 A3NCPUR21 Hardware Manual A3NCPUR21 User's Manual. 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.
Usually in words or K words as units. 16 bit binary number is a word,
Every 1024 words are 1K words. PLC to store instructions and data in words A3NCPUR21 Hardware Manual A3NCPUR21 User's Manual.
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.
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.
It is through the output interface circuit to the internal digital circuit into a signal to make the load action or not action. Using A1SJ71LP21 and A1SJ71BR11MELSECNET/10 modules,
Can be any ANSCPU module to the network system.
Two options can be provided; the optical cable token ring network and the coaxial cable token bus network.
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.
Switch volume control is designed to,
According to the current input combination of the switch quantity and thee history of the input sequence,
So that PLC generates the corresponding switching output,
In order to make the system work in a certain order A3NCPUR21 Hardware Manual A3NCPUR21 User's Manual.
So, sometimes also known as the order control.
And seqquential control is divided into manual, semi-automatic or automatic A3NCPUR21 Hardware Manual A3NCPUR21 User's Manual.
And the control principle is decentralized, centralized and hybrid control three.