IO Output Invalid Problem
<p>[TOC]</p>
<h3>I. Problem Phenomenon</h3>
<ul>
<li>Alarm output always valid.</li>
<li>Alarm output cannot be linked with alarm trigger.</li>
</ul>
<h3>II. Analysis steps</h3>
<p>Follow the steps below to investigate the causes of the problem one by one:</p>
<ol>
<li>Check if multiple/multiple alarm triggers are set.</li>
<li>Check if there is a trigger condition for a certain alarm to trigger all the time.</li>
<li>Check the alarm indicator status.</li>
<li>Try whether a single alarm can change the alarm output status.</li>
</ol>
<h3>III. Operating instructions</h3>
<h4>1、Check if multiple/multiple alarm triggers are set.</h4>
<p>In the device menu ALARM SETUP, check whether the alarm linkage in the alarm type is set to multiple are set to linkage output.</p>
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<h4>2、Check if there is a trigger condition for a certain alarm to trigger all the time.</h4>
<p>Carefully check whether an alarm has been triggering and this alarm has linked output checked, which has been linking output, causing the linkage to be invalid for other alarms.</p>
<h4>3、Check the alarm indicator status.</h4>
<p>If the alarm indicator is always on, there may be an alarm that is triggering all the time. At this time, if the alarm output is always present and does not change, you need to check if an alarm is always valid.</p>
<h4>4、Try whether a single alarm can change the alarm output status.</h4>
<p>Other alarms are not triggered or turned off, try to trigger an alarm alone, check the linkage output of this alarm, and see if the IO output is valid when the alarm is triggered.</p>