pl7-3 sy7 bits

hello.i have been trying to convert a plc software to pl7 v4.3
from pl7-3 so does anybody know how i can convert
sy bits or have any documentation about pl7-3.
regards.

Hi Agolcuk
I don't know about PL7-3 software.but it seems that Sy bits refers to System Bits.
System bits in PL7 V4.3 softawe have a %Sx adresses.
If i am right about the "SY" bits you can tell me which function the sy bits do in your program and i will provide the equivelent in PL7 V4.3
BR

! IF SY0+SY1 THEN 0─>W99
sy7─>W97
example code. and i want to convert directly.

You know what, the conversion from PL7-3 to PL7 Pro is NOT 100% automatically. One of the obstacles is the system bit, one specific system bit in PL7-3 does not correspond to the same system bit in PL7 Pro. That's why you have to do it manually.
Try to get the PL7-3 data sheet from eclipse.modicon.com