PLC Training || Tia PortaL || 02-Stopwatch with SCL & Ladder

[@ahmedafifi2984]

Very good sir But i have question When we use scl and when other Languages? Can i use only scl to write any program or i must use other languages?

[@PROTUTO89]

In many applications, you have the possibility to choose either SCL or Ladder language. But in some applications, like working with arrays , working with complex mathematical formulas or using indirect addressing , there , you have to work with SCL or STL language because they are implemented to execute these such tools. Regardless the used language in your program , The PLC will compile and execute your program , so that , you can write your program only with SCL ( if needed ), or you can use SCL and the othere languages , it does not matter !

[@ahmedafifi2984]

@@PROTUTO89 thanks sir

[@doroeszlari3604]

IN SCL : IF #SECONDS >=60 THEN ... IF #MINUTES >= 60 THEN .. IN LAD : IF #SECONDS >=10 THEN ... IF #MINUTES >= 5 THEN .. WHY? Are they both the right solution? Or only the first?

[@doroeszlari3604]

HOURS , MINUTES AND SECONDS WHY OUTPUT; WHY NOT INOUT ?