https://forge.codesys.com/forge/talk/CODESYS-V2/thread/c7f653395d/2020-02-27T21:44:42.717000ZRecent posts to How Could I Desactivated The Watchdog ?2020-02-27T21:44:42.717000Z2020-02-27T21:44:42.717000Zshooterhttps://forge.codesys.com/u/shooter/https://forge.codesys.comd91ca8cadaddf00a63ec2f016ff55896025f2782

<div class="markdown_content"><p>The warning is correct, and you should change your program according.</p> <p>You have an endless loop in the while structure, if button is pressed the loop is active (doing nothing) but any other program is not being processed at all.</p> <p>You do not have to worry what the processor should be doing, only program what it should change.</p> <p>IF button THEN (<em> I press Down the Button</em>)<br/> WHILE button Do ; (<em> While I pressing Down The Button do not do Anything</em>) END_WHILE<br/> light:= TRUE; (<em>If I have left press Dow the button Turn on the Light</em>)</p> <p>In real you want the light true when button is released.<br/> This is done with function R_TRIG in util.lib <br/> also in oscat.lib available<br/> And you can write your own.</p> <p>if (button=false and flag=true) then light:=true; end_if;<br/> if button then flag:=true else flag:=false; end_if;</p> <p>take warnings serious as it will be your fault, you are a beginner the program knows it better <br/> The only thing you will need a PLC is when timing gets critical or you have a big program, the simulation time is slower as the real PLC.<br/> In the PLC the program is compiled and in the simulation it is interpreted.</p></div>

2020-02-27T21:44:41.225000Z2020-02-27T21:44:41.225000Zjagomez340https://forge.codesys.com/u/jagomez340/https://forge.codesys.comd808eb0b5553959a1c2ea567bb758c9f988ce63a

<div class="markdown_content"><p>I DO NOT have a PLC at this Right Moment But While It comes I have Simulated lots of things but there is one of these as far it has been very Hard because of the Watchdog. <span style="color: #00FF00;">the exercise is so Easy</span>, When I press down a Button , then = do not do anything ,but, If I leave press down the button, Then = Turn on a Light, Here is the Code :</p> <p><span style="color: #0000BF;">IF</span> button <span style="color: #0000FF;">THEN</span> (<em> I press Down the Button</em>)<br/> <span style="color: #0000FF;"> WHILE</span> button <span style="color: #0000FF;">Do</span> ; <span style="color: #008000;">(<em> While I pressing Down The Button do not do Anything</em>)</span> <span style="color: #0000FF;">END_WHILE</span> <br/> light:= TRUE; (<em>If I have left press Dow the button Turn on the Light</em>)</p> <p><span style="color: #0000FF;">END_IF</span><br/> WHEN I SIMULATED IT THERE IS AN ERROR<br/> IT SAYS := <span style="color: #408000;"> ERROR : WATCHDOG COMPUTING OF PROCESSOR CYCLE TAKE TOO LONG. ENDLESS LOOP ASSUMED!</span><br/> I HAVE READ AT THE MANUAL BUT IT SAYS THAT I HAVE TO DESACTIVATE A <span style="color: #408080;">bEnable</span> of the <span style="color: #408000;">SysWdgEnable </span>Function From <span style="color: #408000;"> The Library SysLibPlcCtrl.lib</span>SysWdgEnable<br/> This function (see library SysLibPlcCtrl.lib) of type BOOL can be used to activate resp. deactivate the watchdog for a specified task. It will return TRUE in case of success, otherwise FALSE. </p> <p>Variable<br/> Data type<br/> Description</p> <p>bEnable<br/> BOOL<br/> if TRUE: The watchdog functionality gets activated <br/> if FALSE: The watchdog functionality gets deactivated</p> <p>byIECTaskIndex<br/> BYTE<br/> Index of the IEC task, for which the watchdog should be activated/deactivated</p> <p>stIECTaskName<br/> POINTER TO STRING<br/> Name of the IEC task, can be a pointer to zero </p> <p>Codesys Do not have that Library</p> <p>So I add a FESTO CPX-CEC-C1 LIBRARY (SysLibPlcCtrl.lib) BUT WHEN I WANT TO CALL IT WITH AN INTANCE IT DOESN´T FUNCTION.<br/> IT SAYS: <span style="color: #BF0000;">ERROR3740</span> <span style="color: #008000;">: Unkwonw Type 'SysWdgEnablé'</span> </p> <p>Could You help me How could I Desactived the Watchdog PLeasE? <br/> I hope Your Answer !.<br/> The Lord God almighty Bless your Life In Jesús name ! Amén.</p></div>