https://forge.codesys.com/forge/talk/Engineering/thread/fe4c38c86d/2020-02-27T13:51:09.849000ZRecent posts to IAlarmNotifier - cannot get message from itfAlarm.GetMessage2020-02-27T13:51:09.849000Z2020-02-27T13:51:09.849000ZDavidCozenshttps://forge.codesys.com/u/davidcozens/https://forge.codesys.com4e59fb93b87bb4a91221126cc58e878503a5fac6

<div class="markdown_content"><p>Thanks Edwin - that worked a treat. I would never have guessed that </p></div>

2020-02-27T13:51:09.660000Z2020-02-27T13:51:09.660000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com40a7e8532d110a6c0f3e018665951cec322539c9

<div class="markdown_content"><p>Hi David,<br/> The message text is empty because no visualization occurs in the project.</p> <p>background:<br/> Without visualization, the text lists are not transferred to the control, and therefore the text can not be determined.<br/> This is as designed, to fix that you Need to add a visu to your project.</p> <p>Edwin</p></div>

2020-02-27T13:51:09.479000Z2020-02-27T13:51:09.479000ZDavidCozenshttps://forge.codesys.com/u/davidcozens/https://forge.codesys.com13e6bd9ee3ab8d789c59705089516c38c0e319d4

<div class="markdown_content"><p>I have a function block that implements the IAlarmNotifier interface, I have it doing most of what I want, but I cannot get the alarm message. The key part of the execute method is below. Any ideas why GetMessage always returns a null string. I am successfully getting the name of the AlarmGroup and the AlarmClass it is just this interface function that is tripping me up.<br/> {attribute '''DOCU__COMMENT' := ' Executes the action.'}<br/> (<em> Executes the action.</em>)<br/> METHOD Execute<br/> VAR_INPUT<br/> (<em> The currently processed alarm state transition. This will be<br/> evaluated in order to determine, whether the action has to be<br/> executed or not</em>)<br/> eCurrTransition : AlarmStateTransition;<br/> (<em> The alarm, for which the action has to be performed</em>)<br/> itfAlarm : IAlarm;<br/> (<em> An optional pointer to a structure variable containing<br/> additional parameter</em>)<br/> pbyAdditionalData : POINTER TO BYTE;<br/> END_VAR<br/> VAR<br/> cbpMessage: AlarmManager.CharBufferPtr; (<em> for holding the AlarmMessage </em>)<br/> END_VAR</p> <hr/> <p>cbpMessage := itfAlarm.GetMessage(__SYSTEM.TYPE_CLASS.TYPE_STRING);<br/> StrConcatA(cbpMessage,ADR(sLastAlarm<span>[0]</span>),USINT_TO_INT(SIZEOF(sLastAlarm)));</p></div>