How to get a data type of REAL from PLC to robot?

In KRL, any SIGNAL variable is inherently a 32-bit signed integer, even if you declare it as smaller than 32 bits. There is no implicit means of putting a Real/Float value onto a SIGNAL.

This is what the IEEE-732 standard is for. You can convert between the "real" floating-point value and an integer binary representation, and most PLCs do this automatically when programmed to send/receive a floating-point value over a bus connection. In KRL, you have to program the conversion yourself. These days, the CAST_TO and CAST_FROM functions work for it, Panic Mode has several examples in the forum archives.

ok very thanks!

when using search function, open up the time window or it will not find much.

example:

RE: KUKA INT to REAL

ok !

Thanks Panic !

Hi Panic, i am using cast_to and cast_from like your example at this page Click and all works like a charme.

In my plc i use a 32bit real variable, i swap it for the endianess issue then i send to the robot by profinet.

Robot side, i use it like your example (b2r() function) and all its ok.

Is there any limitation using this method ? I haven't found any.

Thanks a lot.