CPU:A2SHCPU PLC is the same.
PLC program capacity: 14k step.
I/O points: 512 points.
Processing speed (sequential order): 0.25 s/ step.
Control axis: up to 4.
Servo program capacity: 13K step.
Servo amplifier: SSCNET connected external servo amplifier.
PLC programming has a wide range of applications, powerful, easy to use, has become one of the main devices of modern industrial automation,
In all areas of industrial production has been widely used,
Applications in other areas (such as civil and home automation) have also been rapidly developed AJ71LP21G User's Manual AJ71LP21G
It uses programmable memory,
An instruction used to perform logical operations, sequence control, timing, counting and arithmetic operations in its internal storage,
And through digital, analog input and output,
Control of various types of machinery or production processes AJ71LP21G User's Manual. 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.
As can be seen from the above definition, PLC is a program to change the control function of the industrial control computer,
In addition to the completion of a wide variety of control functions, as well as with other computer communications networking features AJ71LP21G User's Manual. I/O slots: 5 slots.
Could you install the power module.
Outline dimension: 315*130 MITSUBISHI AJ71LP21G Manual .
There are two types of extended floor,
A power module can be inserted, and the other one is not.
The choice of any type of substrate depends on the total DC5V current consumption and the power supply on the CPU main substrate MITSUBISHI AJ71LP21G Manual .
If the total demand is less than the power output, no additional power supply,
Then you can choose a more economical expansion board.
Both ends of the main base plate of the CPU have an expansion interface, and can be used for extending the cable connection MITSUBISHI AJ71LP21G Manual . Cable length 10m; used in A6TE2-16SRN.Input voltage range: AC100 ~ 120V/AC200 ~ 240V.
Output voltage: DC5/12V.
Output current: 2.3A/1.5A.
I/O points is an important indicator of PLC.
Reasonable selection of I/O points can not only satisfy the control requirements of the system,
And the total investment of the system is the lowest.
The input and output points and types of PLC should be determined according to the analog quantity and switch quantity of the controlled object,
Generally an input / output element to take up an input / output point.
Taking into account the future adjustment and expansion,
In general should be estimated on the total number of points plus the amount of spare 20%~30%.
The following describes the centralized control system I/O points of the estimate.
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 annd voltage AJ71LP21G Hardware.
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 discoonnected from the load AJ71LP21G User's Manual.
It is through the output interface circuit to the internal digital circuit into a signal to make the load action or not action.