MITSUBISHI AD51H-S3  Debug and Compile Manual AD51H-S3  Programming Manual

Input and output points: 1024 points.
Input / output data points: 1024 points.
Program capacity: 14K.
Basic command processing speed (LD command) s:1.0.
Coaxial data communication line function.
AnNCPU command processing time and ACPU compare to 10-20% high speed processing.
User program storage capacity: it is a measure of how much the user application can store the number of indicators AD51H-S3  Debug and Compile Manual AD51H-S3  Programming Manual AD51H-S3 
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.
General logical operation instructions each account for 1 words. Timer / counter,
Shift instruction accounted for 2 words. Data operation instructions for 2~4.
Integral type: the PLC components are installed together or a few pieces of printed circuit board,
And together with the power supply installed in the casing to form a single overall called the host or the basic unit, small, ultra small PLC using this structure AD51H-S3  Debug and Compile Manual AD51H-S3  Programming Manual.
Modular: PLC is the basic components of a separate module.
Medium and large PLC used this way. Easy maintenance. Points: 32 points
.
Rated voltage: DC24V AD51H-S3  Debug and Compile Manual AD51H-S3  Programming Manual.
Connection type: connector
.
Three remote components can be connected to the CC-LINK system.
Remote I/O: refers to those who require only the ON/OFF control function of the field components, such as digital I/O or pneumatic valve, etc..
In this type of communication can only be carried out in the bit data.
Remote components: refers to those that require processing of the register data of the field components, such as analog I/O and counters, etc..
In this type of component, in addition to the bit data can be carried out in the register data communication.
Intelligent remote: this type of component is to allow the main station or other stations to access the action, to collect data and control the local PLC station,
GOTS and programmer interface unit are of this type. 2 slots.
Can be installed in the power supply unit for A series units installed QnA/.
Cannot extend.
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.
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 ccontrolled object,
Generally an input / output element to take up an input / output point AD51H-S3  Debug and Compile Manual AD51H-S3  Programming Manual.
Taking into account the future adjustment and expansion,
In general should be estimaated on the total number of points plus the amount of spare 20%~30% AD51H-S3  Debug and Compile Manual AD51H-S3  Programming Manual.
The following describes the centralized control system I/O points of the estimate.