Hello. 1
In this video we are going to learn special modules for Delta plcs. 2
We can use just analog input module analog output module or in one module we can use input an analog 3
module thermocouple temperature module PT100 or PT1000.These sensors for PT temperature 4
module positioning module or high speed control module and the important point for this lesson. 5
You can add maximum eight module to the right of you. 6
This is our CPU. 7
And then we can put here one and two and three and four and five and six and seven and eight. 8
Just eight maximum Module to here. 9
And for this special modules we need to use FROM and TO commands. 10
What is these commands,From command or From instruction reads data from the special modules. 11
And if we want to read from these special modules any data we need to use FROM command. 12
And if we need to write something to some data to these special modules we need to use TO command. 13
So how it works from command. 14
Just briefly introduction with the from command when the condition X0 is active. 15
So what happens. 16
It reads from two data, read starts from the special modules. 17
How many data you need to assign how many data that you are going to read. 18
K2. 19
In this example it will read two data from where ? from this address which address and which module from ? 20
so we need to put or assign the module number to here K0. 0 is the first module so we will 21
read from the first module two data or two control register and this control registers is starting 22
from K29 or control register 29-30 23
So we will read CR29-30 two data and we will write this data. 24
It's starting from D0 and it means so what happens. 25
D0 and D1 sequentially or respectively will be written from control registers 29 26
and 30.So CR29 will be inside of D0, CR30 will be in D1. 27
So for the TO instruction usage when this contact goes high or in the rising edge. 28
That's okay. 29
We are writing some data with TO command so which module first module 0 the first one. 30
How many data , just one data we are going to write. 31
So what will we write. 32
Okay. 33
Zero. 34
So we will write just 0 value to first modules 18. control registers. 35
So controller registers 18 will be 0 after X0 activated or from goes to on, on the rising edge contact. 36
That's all for the special modules just we need to know these are for a moment is enough we will take 37
a look one by one in the feature in the another videos like analog input modules and examples and the temperature 38
modules and etc. So for this video I am finished here. 39
See you in the next video.