KB-13387: Telling if an alarm is set to be handled as event.
Question: How can I tell if the tag being used in AlarmConfig is set to be handled as event? Solution: To do so, just check how the alarm’s Event property…
Category: English
KB-21018: Showing an alarm from previous day.
Question: The communication between E3 and a driver has been lost. According to the remote buffer, a certain alarm fired on the previous day, and still has not left this…
KB-24803: Recording alarms’ quality.
Question: How can I have the alarms’ quality to also be recorded in the database? Solution: To do so, you can configure the field Quality (in the Alarm Server) to…
KB-28528: InTime, OutTime, and E3TimeStamp properties.
Question: What is the difference between InTime, OutTime, and E3TimeStamp properties? Solution: InTime: records date/time of the value when it gets in alarm. OutTime: Records date/time of the value when…
KB-30520: Alarm not being fired.
Description: Why is the alarm linked to an I/O tag not firing? Solution: E3 links are context-sensitive. That means that E3 will try to solve the link by first looking…
KB-19080: Adding fields to alarms to record extra information.
Question: How can I add fields to alarms so that the query to Alarms table returns the values from alarms, plus the values from the added field? Solution: To do…
KB-17370: Playing a sound file whenever alarm is active.
Question: How can I play a sound file whenever the alarm is active? Solution: To do so, you must create a new event in the Viewer with this property/expression: AlarmServer1.ActiveNACKAlarms…
KB-28680: XControl/XObject’s Constructor event.
Question: What is the XControl/XObject’s Constructor event for? Solution: This event is executed whenever the object starts. You can use this event to run a script starting an XControl’s internal values,…
KB-28156: Checking for tag reads.
Question: At run time, how can I tell if the variable is communicating with the device or not? Solution: To do so, use the tag’s Quality property. If this property’s…
KB-28547: Using a library developed in a different project.
Question: In a new domain, how can I use a library that had been developed in another project? Solution: To do so, copy the *.LIB file into the folder of…