Real over Profinet to SIEMENS ET200s

Hello

I have a ILC191ME/AN Profinet Device on a Profinet Network.
I have to transfer some REAL numbers to the Siemens Controller.
How do i do that?
Is there a function for that?
I'm using Profinet_Output[0] to 3? (Byte)

i have tested with Word to Siemens, and there is the bytes SWAPED, so i have to swap the bytes in the ILC.
I'm using this code:

Is there a smarter/easy'er way to do it?

Hello,

a REAL-Variable consits of 4 Bytes or 2 words. Please regard this !
Otherwise, I don't know another way to do the Transfer.

Greetings
Larry

Hello emilg,

please excuse our late answer ...

Real values used in the ILC are IEEE754 based. Same in the Step7 I think. If you used a Real_to_Word block
in PCWorx you will use all of your digits, because the block assumes that you want to convert from REAL to word.

For copying the consisting 4 Bytes of a REAL value into a PROFINET Buffer the REAL_TO_Buffer function block can be used,
which is a memory copy routine ...
On the Step7 you just need to remap the 4 Bytes in a REAL formated value.

Best regards
Markus v. Schlichtkrull

Hello

Thanks. I will try it later this week, and see if i can get it to work.

- Emil

Phoenix Contact schrieb:

Hello emilg,

For copying the consisting 4 Bytes of a REAL value into a PROFINET Buffer the REAL_TO_Buffer function block can be used,
which is a memory copy routine ...
On the Step7 you just need to remap the 4 Bytes in a REAL formated value.

Best regards
Markus v. Schlichtkrull

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