Float to two 16 bit integers - PLC5 or SLC

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A recent challange I worked out tonight was getting a float, which represents the number of counts for an indexing drive to move, split into a low and high 16 bit word. This example is for a PLC5 so it will also work for a SLC, but there may be some better math choices for a SLC.

Anyway, I am sure someone could probably do a cleaner job, but I never sould find an example I could follow. Attached is my attempt in a PDF file. The code has been fairly well checked, but if you use it check it out yourself before applying.

Darren

By the way. It will have an accuracy of +/- one count. For me that was good enough.

 

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I found another similar thread here http://www.plctalk.net/qanda/showthread.php?t=7923&highlight=Convert+Floating+point+Interger

but it uses a recursive loop.

 

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By the way. As you cross the 10 million mark you will start to loose resolution due to the way floats are handled.

Darren

 

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My conundrum...

http://www.plctalk.net/qanda/showthread.php?t=16051&highlight=split+integer