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How can I display the decimal points of an Integer out word from an HI 3000 or 4000 series unit?

Last updated 07/29/2015 10:15 AM

Question

I have a 100 lb scale and want two decimal points. I have the two decimal point set in the instrument, but the two decimal are dropped during communications. How can I display the decimal points of an Integer out word from my Hardy Weight Controller?

Answer

If you do not wish to transfer the data in floating point format:

You can display decimal points of an Integer out word from the HI 3010, HI 3030, HI 3300, HI 3600, HI 4050 or the HI 4060  by multiplying the value by a power of 10 (10, 100, 1000, etc) to move the decimal point before the transfer. To do this, you would designate a location to place your multiplier and use this location to multiply the value.

Here is an example of the mapping where we used the first scratchpad location for the multiplier:

The equation for channel one net weight in the HI 3030 is; CSO1 = +HFI8*HFO0

CSO1(Comm. Network Short Output) = +HFI8(Net Weight chan 1)*HFO0(Hardy Float Scratch pad Variable 0)

Then put 100 in scratch pad 0 and the net weight will be multiplied by 100 and transmit the two extra digits that represent the two decimal points. The decimal point is not actually transmitted and the number will need to be altered to show the correct decimal position (divide by 100). You may use the same scratch pad for all the numbers you want two decimal points displayed.

Now tell anyone who may visit your mapping page "Do not change the scratch pad value".