https://forge.codesys.com/forge/talk/Engineering/thread/c12b8a369e/2023-09-27T01:25:04.210000ZRecent posts to SafetyApp - "Invalid ERR Ack input"2023-09-27T01:25:04.210000Z2023-09-27T01:25:04.210000Ztransmin01https://forge.codesys.com/u/transmin01/https://forge.codesys.com8d5ff6f4dfb3437ef120c0496a59e29373e230cb

<div class="markdown_content"><p>Hi,<br/> I am trying to get a basic safety application to download but I keep getting an "Invalid ERR Ack input" and "The Standard Inputs Size of zero is not allowed".<br/> I am simply using 2 safety inputs through an "AND" block to 2 safety outputs. Any help would be appreciated.</p> <p>Regards Trevor.</p></div>