J
Hello,
I've seen that several S7/PCS7 library functions state in their documentation that they should be used from cyclic OB's (OB3x's). Can anyone tell me if there is any meaning behind that recommendation? Is it an actual limitation, meaning it won't function from OB1? Are there any differences between the OB types making code illegal in some? Or just performance advantages?
Thank you
I've seen that several S7/PCS7 library functions state in their documentation that they should be used from cyclic OB's (OB3x's). Can anyone tell me if there is any meaning behind that recommendation? Is it an actual limitation, meaning it won't function from OB1? Are there any differences between the OB types making code illegal in some? Or just performance advantages?
Thank you