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String variables in Alarm

laloggg
2018-01-15
2018-10-27
  • laloggg - 2018-01-15

    Hi CODESYS community,

    I'm programming a machine where different operators can log in. I try to shoot an alarm in the alarm table when a new operator logs in. I tried to use the alarm class "Change" but I dont get it to work, It doesn't triger the alarm when the value changes. Since the name is a STRING variable I've been trying to trigger the alarm with a digital class like:

    sUser <> sLastUser

    It triggers the alarm but when I try to use <triggervalue> or <currentvalue> it only shows TRUE and not the name of the user. Is it possible to show the STRING name of the operator in the Alarmtable?</currentvalue></triggervalue>

    Regards
    Salomon

     
  • LouisPijpers - 2018-10-27

    I am having the same problem, did you ever find a solution?

     

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