https://forge.codesys.com/forge/talk/CODESYS-V2/thread/67097c7eb3/2020-02-27T22:31:58.314000ZRecent posts to Result of multiplication always 16 bits?2020-02-27T22:31:58.314000Z2020-02-27T22:31:58.314000Zshooterhttps://forge.codesys.com/u/shooter/https://forge.codesys.com8f3e4adc4fc4713f69e0e11b5c05ebafc526ec5f

<div class="markdown_content"><p>not reaaly but you did not define the multiplication factor (2) as a byte thus this is automatic an integer thus the result is an integer.<br/> define the 2 as a constant byte and you will see it works.</p></div>

2020-02-27T22:31:53.945000Z2020-02-27T22:31:53.945000Zastrandhttps://forge.codesys.com/u/astrand/https://forge.codesys.comfd27b31afef8d2089ea798799bfd02dd6a443169

<div class="markdown_content"><p>This code causes my PLC to crash:</p> <p>dp: POINTER TO ARRAY<span>[0..7]</span> OF BYTE;<br/> soc: BYTE;<br/> ...<br/> soc := 60;<br/> dp^<span>[3]</span> := soc * 2;</p> <p>If I add UINT_TO_BYTE() around the multiplication, it works. It seems like the result of a multiplication - even with small numbers - is an integer, ie with 16 bits or more. Can someone confirm this; is this specified somewhere?</p></div>