S7-300, pointer ti input bytes in FB?

Kasperv79

Member
K
Join Date
Mar 2012
Location
Copenhagen
Posts
48
Hi Guys.

I have profinet device that i need to read and write 8 bytes from/to.

when I put all the instruction in a FB, I cannot read the 8 bytes.

How to pass like this: P#I256.0 Byte 8 to the Input of an FB and inside the FB, then use it on src for a BLK_MOVE?

/Kasper
 
Kasperv79 said:
One question, when I want to do it the other way around, loading 8 bytes to a Any out?

is it the same procedure?
Click to expand...

The method I've shown allows you to copy the passed any pointer to a local temp any pointer which you then use as you wish as the source or destination in a sfc20 call. So yes, it is the same procedure.
 

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