Host Engineering Forum

General Category => DirectSOFT => Topic started by: Saturn_Europa1 on February 18, 2026, 01:24:52 PM

Title: Help With Math Function
Post by: Saturn_Europa1 on February 18, 2026, 01:24:52 PM

I am having a bit of trouble with this code.  Please see attached screenshot.


V2110 is written as 85 elsewhere in the program.  V1470 is the first Output for a 0-10V Analog Card.  Its written in Direct Logic 6. 

Looking through the manual, it looks like R65535 * V1600 function is taking the double word 85 written with two decimals and converting it to 8.5 volts analog output?   Is this correct? 

 

Title: Re: Help With Math Function
Post by: franji1 on February 18, 2026, 01:48:42 PM

85 BCD with 2 implied decimal places is 0.85 not 8.5 (box is using K2 for number of implied decimal places)

Another example, if it was 123 BCD with 2 implied decimal places, it would be 1.23 real