Logix5000 Controllers General Instructions - SLAC Confluence

60 Analog Alarm Instruction (ALMA)Output Parameter Data Type DescriptionCommError BOOL Indicates that there was a communicationerror when delivering last alarm message toat least one subscriber:Set – communication errors – all retriesexhausted.Cleared – all connected subscriberssuccessfully received alarm message.This error means that a subscriber wassubscribed, and it had a connection opened,but the message was not deliveredsuccessfully.AlarmBuffered BOOL Indicates that the alarm message wasbuffered when not delivered tosubscriber(s), either due to a CommError ora lost Connection:Set – alarm message buffered for at leastone subscriber.Cleared – alarm message is not buffered.Subscribers DINT Indicates number of subscribers for thisalarm.SubscNotified DINT Indicates number of subscriberssuccessfully notified about the most recentalarm state change.Status DINT Indicates the bit-mapped status of theinstruction execution.InstructFault BOOL The instruction detected an execution error.This is not a minor or major controller error.Check the remaining status bits todetermine what occurred.InFaulted BOOL User program has set InFault to indicate badquality input data.SeverityInv BOOL Indicates invalid alarm severityconfiguration. If severity 1000, theinstruction uses Severity = 1000.AlarmLimitsInv BOOL Limits invalid (for example, LLimit