What is the definition data table in PMC? how it works?

[cnmxk]

What is the definition data table in PMC?
How to use it in ladder program? how it works?
anybody can help?
For example, we got a new lathe machine two weeks back, turret can be turned
only in its' home position but, by changing data tale value , we can make turret turn any position. I am confused how it works? I did not find any explanation from the books I found so far.
Thanks

[Aaron liang]

What‘s the control system?
If the FANUC system,you can see the book of ladder language programming manual(B–61863E/14).

[cnmxk]

What‘s the control system?
If the FANUC system,you can see the book of ladder language programming manual(B–61863E/14).

Hi thanks for replying. The machine is FANUC system .I found the book, but there is only information about Data table address on Page 108 and structure on Page 407. It did not say how to use it and how it works. Any more ideas? thank you any way. b/c that is really a useful book.

[Aaron liang]

Do you want to modification the ladder program?

[cnmxk]

Do you want to modification the ladder program?

No I don't want to change any ladder program. but I am confused about how it works
For instant, we changed D177.3 value from 0 to 3 then turret can only rotate in home position . Of course that D177.3 is in ladder program and part of turret rotation rung. I don't know how it made that.

[Aaron liang]

No I don't want to change any ladder program. but I am confused about how it works
For instant, we changed D177.3 value from 0 to 3 then turret can only rotate in home position . Of course that D177.3 is in ladder program and part of turret rotation rung. I don't know how it made that.

I think D177.3 is the condition of turret totation interlock position,If you can read ladder program will be able to understand.
By the way, I think D177.3 can only be 0 or 1, Because the D177.3 is binary.

[cnmxk]

I think D177.3 is the condition of turret totation interlock position,If you can read ladder program will be able to understand.
By the way, I think D177.3 can only be 0 or 1, Because the D177.3 is binary.

You are right that is a condition , but why not use internal relay or keep relay?
what is the particular reason of using data table? And D177.3 is 3 for sure. Because if you can convert 3 to 0011 in binary.

[Aaron liang]

You are right that is a condition , but why not use internal relay or keep relay?
what is the particular reason of using data table? And D177.3 is 3 for sure. Because if you can convert 3 to 0011 in binary.

What control system is FANUC series?
I just know three cases application of data table.
1、The D data functions of FANUC 0 series the same as the K data(keep relay) function of FANUC 15\16\18\21\0i\15i\16i\18i\21i\30i\31i\32i series.
2、Generally,we use the data table store data,but the form of D address is bytes.
3、In some of new FANUC system, The data table can be set to eight-bit binary that the same as keep delay.