Alarm HMI components
After we set up the alarm’s configuration, we can drop in an HMI component. In terms of CODESYS, there are two types of HMI controls. One is the Alarm Banner and the other is the Alarm Table. Consider the following to understand the difference between a banner and a table:
- Banner: Shows one message at a time. It will prioritize alarms and only show the Error, Warning, or Info alarm in that order unless configured otherwise. In other words, a banner will show the most important alarm. No matter the type of alarm, the alarm can be toggled by toggling the variable in the alarm group.
- Table: An alarm table will show active alarms for an alarm group. New alarms will show at the top of the table. Alarms can be toggled simply by toggling the variable the alarm is tied to. Where banners are meant to be on every HMI screen, tables can be set on one diagnostic screen. Compared to banners, a table can give more information as it will show more alarms. ...
