https://forge.codesys.com/forge/talk/CODESYS-V2/thread/ac42ac7559/2020-02-27T23:09:39.355000ZRecent posts to Struct containing BOOLs2020-02-27T23:09:39.355000Z2020-02-27T23:09:39.355000Zshooterhttps://forge.codesys.com/u/shooter/https://forge.codesys.com0f671b1386dd4b63d345fd96a06a8eddd08731e1

<div class="markdown_content"><p>no you can not use functions inside structures however you can use unpack on part of a struc</p> <p>and no you can not change a bool in a byte however you can change a bit inside a byte and test on it.<br/> if bit5 of byte is true then bool5 is true<br/> if bool5 then byte = byte or bit5 bit5 is a byte with bit5 set on so (0001 0000) =32<br/> (make bit0 to bit7)</p></div>

2020-02-27T23:09:37.753000Z2020-02-27T23:09:37.753000ZSekhmethttps://forge.codesys.com/u/sekhmet/https://forge.codesys.coma4e1eee61beeefa4f035b1acb642dc430645a5e6

<div class="markdown_content"><blockquote> <p><strong>shooter hat geschrieben:</strong><br/> yes you can <br/> use pack and unpack this will make a word of a lot of bits.<br/> and a bool is 1 byte.</p> </blockquote> <p>yeah atm i'm using pack and unpack. <br/> but as far as i understand it, i can't use those functions inside a struct to assign the values to specific elements of the struct. <br/> if that is incorrect, please explain how. </p> <p>thanks in advance<br/> Sek</p></div>

2020-02-27T23:09:33.260000Z2020-02-27T23:09:33.260000Zshooterhttps://forge.codesys.com/u/shooter/https://forge.codesys.com80a5df97f703dd6491ec89a70d90eeec2839b654

<div class="markdown_content"><p>yes you can <br/> use pack and unpack this will make a word of a lot of bits.<br/> and a bool is 1 byte.</p></div>

2020-02-27T23:09:31.643000Z2020-02-27T23:09:31.643000ZSekhmethttps://forge.codesys.com/u/sekhmet/https://forge.codesys.com95b18f13fbb6e3f3ad039ae305c136f785f6dcdb

<div class="markdown_content"><p>Sounds Logical but unfortunate <br/> Is there any reasonable way to map a Word to a Struct 16 individual Bool-Variables besides the long way?<br/> I'm not very familiar with the inner logic of Variable-space association. </p> <p>thanks in advance<br/> Sek</p></div>

2020-02-27T23:09:27.154000Z2020-02-27T23:09:27.154000Zmaautohttps://forge.codesys.com/u/maauto/https://forge.codesys.comad3263e9f2036452abd0fff6d531b7ee1ec7a85b

<div class="markdown_content"><p>As far as I know a struct of 16 bools (or an array of 16 bools) does not get addresed as a word. Instead, each bool in the structure (or array) uses up a byte (if you have "Byte addressing". At least that's how it works on my target platform.</p></div>

2020-02-27T23:09:25.561000Z2020-02-27T23:09:25.561000ZSekhmethttps://forge.codesys.com/u/sekhmet/https://forge.codesys.com4cfae29cb3d2a6110ff1159c167d3a62b5adb3c5

<div class="markdown_content"><p>Hi<br/> I'm quite new here so please excuse me if this sounds stupid or anything. <br/> I've just yesterday come across the Struct-Type for working with input-data sent from my hardware via profibus. <br/> The Struct-Type was once automatically added by some Script or something, not sure, it works really nice and generates me a struct with 6 bytes in it. <br/> So i thought, thats nice i'm gonna convert myself a WORD im beeing sent from an other device to 16 BOOL because each BOOL signals something different. <br/> so now i set this up like the working one but instead of the 6 byte-vars i put 16 bool vars there. <br/> But when i Compiled and uploaded to my CPU the Data was really weird. It looked like the CPU tried to write the whole WORD into the first BOOL (Signaled by 16#23 or something). <br/> My question now is: Is that some kind of Bug or did i just do something wrong?<br/> I don't have the exact qc here right now, its on the working-pc and i'm at home but i'll post it tomorrow. </p> <p>thanks in advance<br/> Sek</p></div>